Mercedes-Benz M-Class Mercedes-Benz M-Class

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Mercedes-Benz M-Class repairs by problem area

Engine (36%)

Transmission and Drivetrain (6%)

Brakes and Traction Control (4%)

Suspension and Steering (16%)

Electrical and Air Conditioning (29%)

Paint, Rust, Leaks, Rattles, and Trim (5%)

Other (5%)

Chart based on 867 repairs.
See TSBs and recalls for the Mercedes-Benz M-Class.

Mercedes-Benz M-Class repair cost distribution

$2500+ (7%)

$1000 - $2499 (17%)

$500 - $999 (20%)

$100 - $499 (27%)

< $100 (30%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 572 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2015 Mercedes-Benz M-Class 4dr SUV

302-horsepower 3.5L V6 7-speed shiftable automatic RWD

Mercedes-Benz M-Class in Florida, United States
Jun 2018 - Jul 2022
Jun 2018

50000 mi
Tilt wheel stuck in full up position. 

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2015 Mercedes-Benz M-Class 4dr SUV

302-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Illinois, United States
Feb 2022 - Jun 2022
Apr 2022

80000 mi

US $900
Replace rear pads and rotore 
Mercedes-Benz M-Class in California, United States
Oct 2021 - Jan 2022
Dec 2021

71000 mi

US $2100
Failed [ignition] coil 
Mercedes-Benz M-Class in California, United States
- Jul 2022
Jul 2022

53600 mi

US $1700
All coils and spark plugs replaced to deal with sensor warning for misfire on #5. Frustrating that there was no reasonable path to debug this one part at a time, because too expensive to get in an out to the coils, unlike on a BMW. This is very young to have such problems. Only going to buy toyota from now on ... 

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2014 Mercedes-Benz M-Class 4dr SUV

turbocharged 255hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Ontario, Canada
May 2016 - Jun 2022
Oct 2016

52140 mi
Left Front cup Warmer/refridgerator "holding device" protruding upwards preventing cover closure. Would not seat in proper location. 
Feb 2017

58900 mi
Engine code error. Dealership replaced both NOX sensors. Extended Warranty covered $2400+ repair cost. Fuel consumption dropped from 10.2 to 8.2 l/100 km on everyday driving. 
Apr 2018

93620 mi
Engine code. High carbon in cyl. Sensor replaced. Running good 

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2014 Mercedes-Benz M-Class 4dr SUV

turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Virginia, United States
Nov 2013 - Jun 2022
Sep 2015

26000 mi
One of the diesel fuel injectors was not working right, so the dealer replaced it. When they tried to update the software in the cars computer system, they messed up and it took another day to straighten that out. 
Mar 2018

59000 mi
Headlight bulb was replaced by my Mercedes dealer-- no charge. 
Aug 2018

65000 mi
Steering wheel would not adjust upward and downward. Dealer replaced the steering column up/down adjustment mechanism. 
Sep 2018

65000 mi
Check engine light came on. Problem was in exhaust system. Dealer replaced both NOX sensors, ADBLUE preheater and pump control system, and M.E. control module. List price for parts replaced alone was $4,324. Fortunately, I had an extended warranty from MBusa, so this cost me nothing but the inconvenience, and the dealer gave me a loaner vehicle for the entire time. 
Apr 2021

89000 mi
Brought car in for replacement of parts as part of Mercedes diesel settlement. After parts were replaced, they checked the car and found a bad fuel injector. The injector was then replaced for free under the extended warrantee that was part of the diesel settlement. 
Mercedes-Benz M-Class in New York, United States
Jan 2014 - Sep 2016
Feb 2015

7700 mi
Roof Liner loose. Mechanic removed liner and glued interior sub-roof. 
Mercedes-Benz M-Class in New York, United States
Mar 2014 - Jun 2022
Nov 2017

40000 mi
Turbo sensor replaced under warranty 
Mercedes-Benz M-Class in Texas, United States
Jun 2017 - Jun 2022
Feb 2022

102000 mi

US $1280
Oil leaks from oil cooler, intercooler hoses 

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2014 Mercedes-Benz M-Class 4dr SUV

302-horsepower 3.5L V6 7-speed shiftable automatic RWD

Mercedes-Benz M-Class in Texas, United States
Jul 2015 - Feb 2023
Nov 2017

50000 mi

US $350
Front Driver Daytime Running Lamp needed to be replaced after stopped working. One lamp plus labor was almost $400. 
Dec 2021

108000 mi

US $200
Battery had intermiitent issues with providing enough current to start car. Battery was replaced. 
Mar 2022

109000 mi

US $645
Battery wasn't holding full charge and was at risk of not having enough cranking amps to start. Replaced to ensure battery was good and that we won't be stranded somewhere. 
Mercedes-Benz M-Class in Texas, United States
Sep 2016 - Jun 2022
Sep 2016

31000 mi
LED running board lights not working. Easy entry/exit not working. Steering wheel not moving as it should. 
Mercedes-Benz M-Class in Texas, United States
Mar 2022 - Jun 2022
May 2022

14000 mi
Replaced blown strut. Rear wiper motor. 

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2014 Mercedes-Benz M-Class 4dr SUV

302-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in New York, United States
Oct 2013 - Jun 2018
Nov 2013 Loud noise from engine during cold start up for a few minutes. The right and left timing chain tensioners needed to be replaced. Turns out there is a bulletin already existing about this issue. I noted repair successful but I still hear it. 
Sep 2014

3000 mi
The fuse for my cigarette needed to be replaced. 
Mercedes-Benz M-Class in Minnesota, United States
Jun 2014 - Jul 2018
Nov 2014

5000 mi
Pre-safe sensor malfunction 
Dec 2014

7000 mi
Power rear hatch had intermittent problems closing. Sensors were replaced. 
Jan 2018

41000 mi

US $100
Bad injector. Also leaky valve stem on tire 
Mercedes-Benz M-Class in Colorado, United States
Dec 2013 - Jan 2015
Dec 2014

10000 mi
Car went into "limp-home" mode and was very sluggish. Roadside towed vehicle to dealer. Replaced crankshaft position sensor. Also had 10k mile service performed which was almost due anyway. 
Mercedes-Benz M-Class in California, United States
Mar 2017 - Jul 2018
Dec 2017

49000 mi

US $600
rear brakes worn. 
Jan 2018

48000 mi
Door handle had to be replaced. Under warranty 
Feb 2018

48700 mi
Worn seatbelt replaced under warranty. Everything that gets daily use wears out inside this car in about 50,000 miles. Otherwise the car drives beautifully, and handles beautifully, and looks really good, too.  
Mercedes-Benz M-Class in Maryland, United States
Sep 2013 - Jul 2022
Jul 2022

110000 mi
rotors were vibrating when braking at high speed. Warrantee repair 
Mercedes-Benz M-Class in Maryland, United States
Nov 2014 - Dec 2014
Nov 2014

9000 mi

US $20
low coolant 
Mercedes-Benz M-Class in Louisiana, United States
May 2017 - Jul 2020
Sep 2017

40000 mi
Cylinder 3 missing Ck done , told no problem, poss bad gas Has worked fine since/ they possibly added fuel additive No 3 cyclinder continued missing- took in 4 weeks ago, β€œcar computer β€œ reset and updated. Prob worsened, took in again(3 rd time) , finally, spark plug 3 cylinders removed, found to be fouled , replaced. So far, ???? 
Mercedes-Benz M-Class in New York, United States
Jun 2014 - Jun 2022
Apr 2017

7500 mi
Check engine light popped up. Took it to the dealer. I was told that a software update was needed. 0.0 cost due to warranty 
May 2018

15000 mi
The brake light bulb was out on the driver side. It did take more than 10 minutes, only because they provided complimentary inspection of the vehicle.  

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2013 Mercedes-Benz M-Class

Engine not specified

Mercedes-Benz M-Class in California, United States
Dec 2013 - Dec 2013
Dec 2013

13000 mi
Strange noise at startup tailgate won't open 

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2013 Mercedes-Benz M-Class 4dr SUV

turbocharged 550hp 5.5L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Alberta, Canada
Oct 2013 - Sep 2015
Jun 2014

8060 mi
Sunroof rattle. Dealer removed headliner and tightened two screws. 

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2013 Mercedes-Benz M-Class 4dr SUV

turbocharged 402hp 4.7L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Pennsylvania, United States
Mar 2017 - Jun 2022
Jan 2018

80000 mi

US $500
Fluid change. 
Feb 2022

147000 mi

US $3000
New water pump hoses thermostat belts pulleys valves  and cam shaft gaskets 
Mercedes-Benz M-Class in New Jersey, United States
Dec 2015 - Sep 2016
Feb 2016

56000 mi
Engine idling low and running roughly after stopping from highway speed. 
Sep 2016

61000 mi
Problem with low, rough idle was intermittent and could never be duplicated by the dealer. 

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2013 Mercedes-Benz M-Class 4dr SUV

turbocharged 255hp 3.0L V6 Diesel 7-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Victoria, Australia
Dec 2012 - Apr 2017
Jun 2013

7440 mi
Headlight high beam operation faulty 
Aug 2013

9540 mi
Headlamp not dipping correctly or going to high beam. 
Feb 2015

25420 mi
Oil seal leak 

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2013 Mercedes-Benz M-Class 4dr SUV

turbocharged 255hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Western Australia, Australia
Nov 2013 - Jun 2022
Feb 2016

18600 mi
Squeaks and rattle in the driver's seat. 
Jun 2016

21700 mi
Car went into limp mode and car had to be towed in for inspection. No fault found after several days of testing. 
Jan 2022

62000 mi

A $2500
EGR Valve replaced 
May 2022

65100 mi

A $1800
Nox Sensors faulty and replaced under goodwill arrangement. 

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2013 Mercedes-Benz M-Class 4dr SUV

turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Ontario, Canada
Dec 2012 - Jun 2018
Jul 2013

23320 mi
keyless go malfunction quickly got worse not starting once not shut off replace ingnition switch value $1200 length of repair caused sunroof to need resetting on second visit 
Mar 2014

39680 mi
Engine light on for preheater in DEF system. Corrected replaced, then needed pressure hose. 
Jul 2015

71880 mi
Oil cooler system leak Soot sensor defective serpentine belt broke and pully's worn. Long wait for parts 
Dec 2015

85560 mi

C $250
Rear Wheel bearing 
Jul 2016

97340 mi

C $2500
Replace both rear radar sensors for blind spot system 
Jan 2017

103540 mi

C $2500
2- Oxygen sensors 
Sep 2017

120280 mi
Leaking oil again 
Jun 2018

140120 mi

C $1202
Replace MAF sensor 
Mercedes-Benz M-Class in Texas, United States
Sep 2015 - Aug 2018
Aug 2018

98000 mi
Bad valve associated with Diesel engine 
Mercedes-Benz M-Class in Washington, United States
Dec 2012 - Jan 2014
Feb 2013 Would not recognize the key fob 
Mercedes-Benz M-Class in Pennsylvania, United States
Jan 2013 - Jan 2022
Jan 2016 Check engine code indicated problem with torque converter. Torque converter was replaced under warranty. 
Sep 2020

39400 mi

US $1300
Bad balking or hesitation at every shift point. Replaced oil cooler seal and resulting Mass Air Flow assembly 
Mercedes-Benz M-Class in New York, United States
Dec 2015 - May 2017
Apr 2016

43000 mi
LED running board out  Engine Light Wiper fluid level sensor Trunk latch 
Aug 2016

47000 mi
Sunroof wind deflector became loose. Burnt right side brake light 
Sep 2016

48000 mi
Engine Light, bad NOx sensors, both front and back. Replace by dealer 
Jan 2017

42500 mi
Air inlet to turbo gasket causing oil leak Moonroof did not close properly. Need cleaning and grease. 
Mercedes-Benz M-Class in Florida, United States
Feb 2014 - Jun 2018
Jun 2017

40000 mi
Replaced NOx sensors. Replaced soot sensor. 
Mercedes-Benz M-Class in Alberta, Canada
Sep 2015 - Jun 2017
Feb 2017

39000 mi
The urea tank heater had to be replaced at 62,000 km of which MB paid for half (total bill $1500). Urea tank heaters are not considered part of the fuel system and are often exempted from 3rd party warranty programs....just FYI. 
Mercedes-Benz M-Class in New York, United States
Apr 2016 - Dec 2017
Dec 2017

94000 mi

US $972
EGR replaced 
Mercedes-Benz M-Class in Ontario, Canada
Nov 2016 - Mar 2017
Dec 2016

39680 mi
Left front wheel bearing replacement 
Mercedes-Benz M-Class in Texas, United States
Mar 2013 - Sep 2015
Feb 2013

300 mi
Repaired chafed wiring related to the parking brake switch. 
Oct 2014

21700 mi
Air bladder in driver's seat bottom inoperative. Seat bottom replaced. 
May 2015

29000 mi
Clunking noise in front end, right front strut replaced. 
Jul 2015

31800 mi
Steering wheel height adjustment not working. They said it's temporarily fixed, but will re-occur. New part on order. 
Mercedes-Benz M-Class in Texas, United States
Jun 2013 - Feb 2016
Oct 2014

19500 mi
The AC had a "musty" smell when first turned on. 

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2013 Mercedes-Benz M-Class 4dr SUV

302-horsepower 3.5L V6 7-speed shiftable automatic RWD

Mercedes-Benz M-Class in Florida, United States
Apr 2013 - Apr 2015
Nov 2013

14000 mi
Fixed air conditioner 
Dec 2014

22000 mi
Passengers seat torn. 
Mercedes-Benz M-Class in California, United States
Sep 2015 - Jun 2018
Oct 2015

45800 mi
Car would not start, when it eventually did start the engine died immediately. Sent to Mercedes of San Diego, computer software updated. 
Mercedes-Benz M-Class in Georgia, United States
Feb 2016 - Apr 2017
Mar 2016

18000 mi
replaced computer. Door locks would not work . start button would not work, several electrical items would not work. First dealer could not diagnose. 2nd dealer diagnose and repair in one day 
Feb 2017

22000 mi

US $1400
Upper front strut mounts worn out, major rattling noise. Dealer diagnosis and refused to repair under warranty at only 22,000 miles. Called MBUSA and no help there. MB sucks and we had repair done at local shop for less than 50% of dealer. Out of warranty by three months. Mercedes after much insisting offered to pay 40%. 
Mar 2017

22000 mi
Sensor on emission control. 
Apr 2017

22000 mi
Never repaired a rattling in the steering column that had a TSB on it. This MB was totally unreliable and we were afraid to drive it to our Florida winter home as something always went wrong from sensors and it seemed like we always got at least one I warning light each trip.  

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2013 Mercedes-Benz M-Class 4dr SUV

302-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Virginia, United States
Dec 2012 - Dec 2015
Mar 2015

46000 mi
Nav system hard drive failed...replaced under warranty. 
Mercedes-Benz M-Class in Maryland, United States
Dec 2012 - Apr 2014
May 2013

6000 mi
Rattle/clicking sound in front seat. Seat frame was defective and needed to be replaced. Warranty item. 
Mercedes-Benz M-Class in Kentucky, United States
Sep 2013 - Jun 2017
Sep 2013

1000 mi
Keyless-GO exterior door handle non-responsive, passenger side 
Jul 2014

9500 mi
Windshield washer reservoir sensor did not report empty reservoir. Loose connection fixed. 
Jun 2017

40000 mi
Timing chain noise at startup. Known service bulletin 
Mercedes-Benz M-Class in California, United States
Sep 2015 - Dec 2015
Nov 2015

33400 mi
Leaky front differential 
Mercedes-Benz M-Class in Virginia, United States
Nov 2013 - Oct 2015
Jan 2014 Updated NAV unit Firmware 
Mercedes-Benz M-Class in New Hampshire, United States
Dec 2012 - Jun 2018
May 2017

65000 mi

US $500
Broken Windshield Wiper arm assembly.Arm synchronizing hardware failed , resulting in broken windshield, as well as the repair of the arm assembly 
Sep 2017

72000 mi

US $600
Cam shaft sensors 

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2012 Mercedes-Benz M-Class 4dr SUV

turbocharged 255hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Ontario, Canada
Feb 2017 - Mar 2017
Feb 2017

60760 mi

C $1400
NOx censors replacement 

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2012 Mercedes-Benz M-Class 4dr SUV

turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Texas, United States
Jan 2013 - Apr 2013
Apr 2013

17000 mi
Interior door panel creaks, apparently there was a TSB to add felt tape behind the panels (b pillars) which fixed the issue. 
Mercedes-Benz M-Class in Pennsylvania, United States
Oct 2013 - Oct 2015
Nov 2014

33700 mi
Blown gasket; plus a second transmission oil leak 
Mercedes-Benz M-Class in Quebec, Canada
Feb 2013 - Mar 2014
Mar 2014

26040 mi
The 2 lighted M-B sign on passenger and driver floor Part of the emission system had to be replace 
Mercedes-Benz M-Class in Virginia, United States
Jun 2015 - Jul 2015
Jul 2015

60000 mi
Shorted harness resulted in destruction of computer and messed up Adblue system 
Mercedes-Benz M-Class in Washington, United States
Mar 2012 - Dec 2014
Jan 2013

41300 mi
Total COMMAND system failure. Service technician indicated replacement component would have cost approx $5000 if out of warranty. 
Feb 2013

17400 mi
Tailgate actuator failed 
Mercedes-Benz M-Class in Washington, United States
Nov 2011 - Jun 2022
May 2012

7500 mi
Clamp holding boot came loose and leaked grease on nearby parts. Clamp re-installed and repaired as warranty item. No apparent damage to C-V joint assembly from loss of grease. 
Jul 2014

38000 mi
Window seal noise repaired on driver/passenger front doors. 
Aug 2014

38500 mi
Seeping Oil pan gasket was replaced under warranty before it developed into significant problem. 
May 2016

55000 mi

US $350
Replaced rear pads due to wear at customer expense. First change since new. Replaced computer/circuit board for "pre-safe" seatbelt tightening/collision avoidance under warranty (extended). 
Feb 2017

63000 mi
DEF heater in DEF tank failed and was replaced. 
Jun 2017

66000 mi
Window replacement through insurance. Rock chip. 
Jun 2018

66000 mi
02 sensor in exhaust. 
Apr 2021

100000 mi
Diesel exhaust system replacement under Mercedes Benz legal settlement 
May 2022

110000 mi
Seals to intake, oil cooler replaced. 
Mercedes-Benz M-Class in Ohio, United States
Nov 2017 - Jun 2022
Jun 2018

56000 mi

US $170
Power rear door drive made horrible noises and wouldn't engage to lift the door. Purchased replacement part from dealer and replaced it. 
Sep 2021

114850 mi

US $450
The dreaded oil cooler seals were leaking. Removed everything from the engine above the block to replace the oil cooler seals. Many consumables replaced on other systems. Also cleaned out a large amount of built up oil soot from the air intake system downstream of the throttle body. 
Mercedes-Benz M-Class in Washington, United States
Sep 2016 - Jun 2022
Oct 2017

99000 mi

US $400
Battery replacement in addition to a standard B3 service 
May 2022

103000 mi

US $850
Massive water leak that filled up the spare tire space and throughout the chassis (couple of gallons of water from behind each wheel well and boot of suv). Water shorted out the fuel pump control module and the battery required replacing. Not clear where the water leak originated. No evidence inside the vehicle. Drain vents were cleaned and drain plug in rear was removed to ensure flooding would not happen again. 
Mercedes-Benz M-Class in Ohio, United States
Aug 2015 - Aug 2016
Dec 2015

68000 mi
Turbo seal replaced. Then oil cooler oil leak discovered. Out of warranty but paid $0 (goodwill). 
May 2016

69300 mi

US $1500
air suspension failed. Dealer had car in twice to complete repair. 
Aug 2016

70000 mi

US $1800
Oil leak at turbo repaired, leak continued. Ultimately determined the problem was with the intercooler. All told dealer had Mercedes for 3 months on and off. Dealer did complete the repair and covered it under warranty even though I was out of warranty. 
Mercedes-Benz M-Class in New York, United States
Oct 2014 - Jun 2018
Feb 2016

52100 mi
Oil leak 

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2012 Mercedes-Benz M-Class 4dr SUV

302-horsepower 3.5L V6 7-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Alberta, Canada
Dec 2015 - Jun 2017
Feb 2016

48100 mi
Leak through top of windshield. 
Jan 2017

47900 mi

C $800
Main fuel pump replacement 

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2012 Mercedes-Benz M-Class 4dr SUV

302-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Virginia, United States
Dec 2015 - Jun 2022
Dec 2017

49000 mi

US $890
Replaced rear brake pads and rotors Driver’s shoulder harness adjustment was not moving out of the lowest position and was successfully repaired by dealer under warranty 
Mercedes-Benz M-Class in California, United States
Oct 2011 - Dec 2014
Mar 2013

15000 mi
Creaking noise when turning. Wheel bearings repaired on right front. 
Jan 2014

22000 mi
Cv Joint repair for the 2nd time 
Mercedes-Benz M-Class in New York, United States
Oct 2011 - Apr 2013
Oct 2012

10500 mi
Low coolant Warning Came on. Added half an inch of coolant to the reservoir, said common. Seat insert on back of front seat has to be replaced. Ordered. 
Apr 2013

15000 mi
Seat material still on order. Pigment loss. Power tailgate would not go up intermittently and get stuck. 
Mercedes-Benz M-Class in Florida, United States
Oct 2011 - Jun 2017
Jan 2013

13000 mi
Replaced washer pump motor 
Sep 2013

17000 mi
Had no turn indicators and no blind spot assist. They replaced the steering wheel module. 
Sep 2014

24000 mi
Replaced drivers seat cover. P-Tex was delaminating. 
Jun 2015

28000 mi
A/C had a bad smell when started. They needed to install drain plugs so water does not accumulate in the vents. 
Mercedes-Benz M-Class in Texas, United States
Jan 2012 - Jun 2022
Sep 2015

73000 mi

US $604
replace drive shaft rear flex disc - parts $206.25, labor $256.37 Anti-microbial treatment to A/C evaporator due to persistent bad smell - $140.95 - this smell issue seems to affect many MLs, and our service advisor told us MB will try to fix it under warranty only during the first year of ownership. 
Apr 2016

86200 mi

US $325
replaced suspension links to cure clunking noise replace hub and bearing 
Nov 2016

104600 mi

US $325
Replaced worn cover on drivers bottom seat. Purchased OEM cover on line, had local trim shop install it. 
Nov 2017

133000 mi

US $700
Lock on rear tail gate failed, lock replaced, which require disassembly of entire tail gate $600.00 Another attempt to remove bad smell from A/C, still not completely successful $90.00 Another attempt to remove bad smell from A/C, still not completely successful $90.00 
Apr 2018

143000 mi

US $930
Passenger seat cover worn, MB only sells cover as part of complete lower seat assembly due to airbag weight sensors imbedded in seat so repair was much more expensive than expected. Bought OEM seat assembly on internet from a MB dealer for $830 (local MB dealer wanted MSRP of $1200 for the part only!), had trim shop install for $95. Car computer had to be reset by MB dealer ($260). 
Jul 2018

149000 mi

US $1200
Replace rear struts due to rough ride with occasional bottoming, also did 4 wheel alignment at same time 
Jan 2022

233000 mi

US $1875
The original alternator failed after 233,000 miles. Replaced alternator 
Mar 2022

236000 mi

US $1500
replace right side catalytic converter due to persistent check engine light 
Mercedes-Benz M-Class in New Jersey, United States
May 2012 - Jun 2015
Dec 2012

5000 mi
Rough idle, occasional stall on cold start. 
Mercedes-Benz M-Class in North Carolina, United States
Nov 2012 - Dec 2014
Dec 2013

26000 mi
Driver seatcover replacement 
Mercedes-Benz M-Class in North Carolina, United States
Aug 2014 - Jun 2018
Sep 2015

37000 mi
Creaking noise from front strut. Car sometimes turns on and then shuts off right after pushing the start button. There was a software update to fix. 
Feb 2016

39600 mi

US $450
Transmission and locks were acting up. A new battery solved the issues. 
Mar 2018

60000 mi

US $1200
Cable was severed leading to a fuel pressure sensor. First replaced sensor and then found damaged wire. Heat shield under car was responsible. 
Mercedes-Benz M-Class in Connecticut, United States
Apr 2014 - Feb 2016
Nov 2014

29000 mi
Smart Key failed to start car. Smart Key replaced by dealer under warranty. 
Jan 2015

36000 mi
Rattle coming from under passenger seat. Dealer had to disassemble passenger/seat area, and remove a foreign object from the under seat heating ducts. 
Jul 2015

34000 mi
Power sunroof does not autoclose to the proper position. Computer reprogrammed, which solved the problem for two weeks. After two weeks, original failure reoccurred. Power sunroof does not autoclose to proper position, failure reoccurred after computer reprogramming. Closed detected position not being stored properly in sunroof motor. Sunroof motor and related sensors replaced. 
Feb 2016

37000 mi
Rear Window switch not working. Dealer replaced switch. 
Mercedes-Benz M-Class in Massachusetts, United States
Feb 2014 - May 2018
Jul 2014

28800 mi
Back up camera lens scratched needed to be replaced 
Jan 2015 Rear vent broken, needed to be replaced. 
Aug 2016

60000 mi

US $400
replaced spark plugs and engine light came on for an emission leak. shop claimed not related but I believe it was and they caused it by not replacing intake resonator seals. had to pay to replace seals. 
Mercedes-Benz M-Class in Illinois, United States
Dec 2012 - Dec 2015
Apr 2014

6000 mi
Fuses igniting cylinders blown twice. Replaced ignition coils. Fixed after second attempt. 

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2011 Mercedes-Benz M-Class 4dr SUV

turbocharged 228hp 3.0L V6 Diesel 7-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Ontario, Canada
Dec 2014 - Jun 2018
Apr 2015

37180 mi

C $2000
replace ignition switch 
Jan 2016

37580 mi

C $500
Radio reporting that it detected theft and is shutting down. Lane assist stop working after the vehicle was used for towing. Two radar sensors were replaced. 
Apr 2016

58480 mi

C $600
Check engine light went on. Determine that is air intake sensor and that either the sensor is faulty or intake control valve does not function correctly. 
Jun 2017

76880 mi

C $2700
Lane assist sensors were faulty. Shutdown whole electrical system. Replaced by MBC. Timing chain stretched because tensioner was faulty. replaced 
Jan 2018

86800 mi

C $5500
need to replace intake sensors and valve that got stuck oil cooler leaked. need to replace seals 

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2011 Mercedes-Benz M-Class 4dr SUV

turbocharged 228hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Ontario, Canada
Mar 2015 - May 2017
Jun 2015

58900 mi
Wiring harness was replaced, found by parking sensor and passenger mirror fault. I noticed this problem during the initial test drive. Only replicated once out of warranty. They paid half after I proved that it was on every service request. Heater on diesel fuel additive tank, and a signal light. Started when leaving dealer after wiring harness repair. Dealer says it's a new issue and a $1,300 part. Not ready for another expensive repair yet. 
Dec 2015

68200 mi

C $450
Diesel exhaust fluid heater failed, Mercedes paid full cost of part, I paid labour. 
Mar 2017

87420 mi

C $2500
2 Parking modules from back bumper of truck. Failure causes a Canbus fault from constant failure signals. Truck goes into limp home mode and all dash gauges fail, only 3 gears available, etc, etc. 

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2011 Mercedes-Benz M-Class 4dr SUV

turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Arizona, United States
Dec 2014 - Apr 2016
Feb 2016

63000 mi

US $3000
Oil cooler leak 
Mercedes-Benz M-Class in Arkansas, United States
Dec 2015 - Dec 2016
Dec 2016

75000 mi

US $64
headlamp out 
Mercedes-Benz M-Class in New Brunswick, Canada
Dec 2011 - Jun 2017
Aug 2011

1984 mi
Replaced front oil seal and serpentine belt that failed due to oil contamination Oil leak from Turbo contaminated serpentine belt causing it to break 
Mar 2015

57040 mi
Blind spot warning system inoperative. Both rear sensors replaced 
Oct 2015

64660 mi
Check engine light on. Right sensor now bad as well Oil cooler leaking, seals replaced Sensor replaced 
Jan 2016

69320 mi
Slow coolant leak. A hose was incorrectly re-installed after an earlier repair. 
Feb 2016

70920 mi
Blind spot warning system failed...bad transmitters 
Sep 2016

81840 mi
Rattle on startup. Bad timing chain tensioner. Tensioner replaced 
Feb 2017

88040 mi
Senders for blind spot warning system failed again 
May 2017

89280 mi
CEL on in dash, required NOx sensor and catalytic converter 
Mercedes-Benz M-Class in Minnesota, United States
Sep 2016 - Jun 2018
Apr 2017

60000 mi

US $150
Replace tailgate struts 
Mercedes-Benz M-Class in Missouri, United States
Oct 2017 - Jun 2022
Dec 2021

160000 mi

US $120
timing chain Replaced timing chain 
Mercedes-Benz M-Class in United Arab Emirates
Dec 2011 - Nov 2012
Jan 2012

3240 mi
Cooling system failed. Entire cooling system was replaced under warranty. 
Apr 2012

2060 mi
Knocking noise from suspension. Bushings abnormally worn. Replaced. 
Nov 2012

4340 mi
Transmission failed catastrophically. Replaced. Sold the vehicle right after as I got fed up of it. 

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2011 Mercedes-Benz M-Class 4dr SUV

503-horsepower 6.2L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in British Columbia, Canada
Dec 2016 - Jun 2018
May 2017

55800 mi

C $2000
Airmatic suspension pump gave up. Replaced. Also changed all fluids in the ML at the same time, hence the $2000 bill. Totally worth it. 

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2011 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in New Jersey, United States
Dec 2013 - Jan 2022
Jan 2013

19000 mi

US $1
New Comand Screen 
May 2016

65000 mi

US $500
Thermostat 
Dec 2021

137000 mi

US $4000
CV boots, rear brakes, new tires Command System replaced 
Mercedes-Benz M-Class in Oklahoma, United States
Feb 2017 - Jun 2017
May 2017

68000 mi

US $479
Replaced an oxygen sensor and oil change 
Mercedes-Benz M-Class in Sweden
Jan 2015 - Jun 2017
May 2015

15860 mi
Door lock actuator passenger side was not working 
Mercedes-Benz M-Class in Pennsylvania, United States
Dec 2014 - Jul 2018
Jan 2015

37300 mi
Thermostat failure 
Apr 2015

39200 mi
Blind spot sensor failure 
May 2016

55700 mi

US $20
Known flaw in ML taillight dsesign - google W164 taillight harness. do not have dealer fix...easy to do but definitely a design flaw 
Mar 2017

69000 mi

US $150
Blind spot sensor failed for the third time. Unsuccessful repair. 
Jun 2017

72000 mi
Infotainment screen has begun to fade and flicker. No repair done as it still works in its crippled state 

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2010 Mercedes-Benz M-Class 4dr SUV

turbocharged 228hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Victoria, Australia
- Apr 2011
Apr 2011

18600 mi
Replace steering angle sensor under warranty 
Mercedes-Benz M-Class in Ontario, Canada
Mar 2015 - Jun 2015
Mar 2015

58280 mi

C $2000
Glow Plugs and Glow Plug module Engine Oil Cooler leaking 

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2010 Mercedes-Benz M-Class 4dr SUV

turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in New Brunswick, Canada
Sep 2015 - Mar 2016
Mar 2016

59520 mi

C $179
Worn out seat belt connector relay 
Mercedes-Benz M-Class in Tennessee, United States
Jan 2014 - Jun 2017
Nov 2014

27700 mi
Passenger side vent not working, dealer replaced parts. 
Mercedes-Benz M-Class in Colorado, United States
Dec 2013 - Oct 2017
Jul 2014

51700 mi
Steering wheel position sensor - causing intermittent ESP light. 
Sep 2017

77000 mi
Replace heater blower motor 
Mercedes-Benz M-Class in Illinois, United States
Dec 2013 - Jan 2016
May 2014

50000 mi

US $1708
Replaced AdBlue Heater Element (Diesel engine) w/ tank. RS Preheater #164-471-11-75 

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2010 Mercedes-Benz M-Class 4dr SUV

382-horsepower 5.5L V8 7-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Ontario, Canada
Aug 2015 - Oct 2015
Sep 2015

96720 mi
the valves for the air suspension had to be replaced 

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2010 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic RWD

Mercedes-Benz M-Class in Alabama, United States
Jan 2018 - Oct 2019
Mar 2018

119000 mi

US $75
The intake manifold tumble flap actuator lever broke and was replaced with an aftermarket metal piece. 
Mercedes-Benz M-Class in Texas, United States
Mar 2013 - Jun 2022
Aug 2013

55000 mi
Rear seat belts did not retract properly, and were repaired. 
Apr 2015

71300 mi

US $600
Ignition switch was malfunctioning and was replaced. 
Feb 2016

89100 mi

US $850
Actuator for front passenger door electric lock malfunctioned and required replacement. But estimated cost was very high ($850), so decided to live with the problem. 
Oct 2016

99000 mi

US $20
Well known problem with ML series: brake light design is improperly grounded, causing system to improperly display "bulb out" message. Corrected using repair kit available from Mercedes. 
Dec 2021

167000 mi

US $500
Replace faulty lift gate lock actuator 
May 2022

170000 mi

US $2000
Replace water pump 

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2010 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Queensland, Australia
Mar 2015 - Jun 2018
Nov 2017

99820 mi

A $1500
Key ignition module failed. Car would not start. Mechanical shop replaced ignition module with factory OEM unit which was shipped from Germany and programmed by Mercedes Benz factory to match vehicle keys and ECU immobolizer. 

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2010 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Oklahoma, United States
Jul 2014 - Dec 2014
Dec 2014

66000 mi
Rear tailight always gave error indication. Was a wiring issue. 
Mercedes-Benz M-Class in Maryland, United States
Mar 2014 - Feb 2015
Feb 2014

37000 mi

US $1500
Keyless entry driver-side door handles failed and were replaced. Driver heated mirror failed and replaced. Passenger seatbelts won't retract and replaced. 
Apr 2014

38300 mi
Keyless Go handles failing 
Mercedes-Benz M-Class in Hong Kong, China
Dec 2014 - Dec 2015
Sep 2015

28520 mi

$5
Rear Hatch cannot open probably! The opening and closing button not working same as the driver door hatch button. Shop told me the computer that control the hatch seems broken! Front Brake sensors broken causing it brake by itself!!! Almost caused me an heart attack!!! Engine making whinning sound end up discovered by shop are the engine pulleys need to be replaced same as the water pump and pulley! Windshielf wiper passenger side broken!!! 
Mercedes-Benz M-Class in Indiana, United States
- Jul 2013
Jul 2013

53000 mi

US $500
Rear Passenger Seatbelt would not retract. Replaced entire seatbelt. 

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2009 Mercedes-Benz M-Class

Engine not specified

Mercedes-Benz M-Class in Ontario, Canada
Mar 2013 - Aug 2013
Apr 2013

53960 mi

C $1200
Major engine job to fix an oil leak, partially covered by warranty. 

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2009 Mercedes-Benz M-Class 4dr SUV

turbocharged 221hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Brazil
May 2016 - May 2021
Apr 2016

70060 mi

$100
The tailgate/trunk was not closing. Removed the lock actuator, disassembly one of the mini 12v dc motors inside it and replace it. Now working fine. 
Feb 2017

68820 mi

$10
CDI Inlet Port Shut off motor making the car going to limp mode. Remove the connector plug and insert a 4.7kohms resistor so the computer thinks it is still connected. Problem solved but MPG raised about 10%. 
Jul 2017

72540 mi

$300
The tailgate/trunk not closing again. bought a new lock actuator and replace the entire part. 
Sep 2017

76880 mi

$90
Change shock absorbers 
Mercedes-Benz M-Class in Ontario, Canada
Jul 2013 - Feb 2016
Apr 2015

86160 mi

C $140
LED in rear tail light went out. a complete new assembly was the only answer 
Jun 2015

89280 mi
Rear main seal is leaking. Losent a quart in two months. 
Jan 2016

81220 mi
Still trying to diagnose the 18 faults. Looks like CDI computer. Replaced the Maf sensors but still hhave the same problem Wiring harness frayed at motor mount Both EKAS sensors defective, shutoff motor defective, EGR faulty and oil cooler seals changed, replaced ad blue tznk heater ( 2nd time in two years) 

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2009 Mercedes-Benz M-Class 4dr SUV

turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in California, United States
Mar 2014 - Jun 2022
Feb 2016

43900 mi

US $150
Engine failed to start, it would crank but not start. NO CEL, NO Add Blue lights. Towed to shop, where it started, no error codes were noted. Issues could not be duplicated. 
Sep 2016

48000 mi

US $480
TPMS system, two of the sensors went out, replaced all four 
Nov 2017

62000 mi

US $2200
Diesel Exhust Fluid heater replacement. 
Dec 2021

103000 mi

US $2226
Front Break pads and Rotors with system flush 
Mercedes-Benz M-Class in Ontario, Canada
Oct 2014 - Oct 2014
Oct 2014

83700 mi
Door locks motors stopped working in 3 of the 4 doors 
Mercedes-Benz M-Class in Alberta, Canada
Mar 2014 - Mar 2015
Mar 2015

99200 mi
Wheel bearing Door lock replaced 
Mercedes-Benz M-Class in South Carolina, United States
Mar 2013 - Jun 2013
Apr 2013

27000 mi
water leaked into the rearseat area of the car where computer piece got wet. Cars rear lights stayed on, front lights flashed continiously 
Mercedes-Benz M-Class in California, United States
Mar 2010 - Dec 2016
Dec 2010

25010 mi

US $1426
Windshield replacement due to crack caused by passing truck $1,426.25; mostly paid by my insurance. 
Jan 2011

32477 mi
Previous repair (right front bearing) didn't fix problem; replaced left strut assembly Previous repair (right front bearing) didn't fix problem; replaced left strut assembly; replaced buttons at steering wheel due to squeaky noise. 
Apr 2011

27670 mi
Replaced right front bearing N/C;That took several attempts to fix until the correct item was determined. This would have been a really expensive repair for the owner if this would not have been covered by warranty. 
Jan 2012

32620 mi
lubricated squeaky shift paddles on steering column 
Apr 2012

35866 mi
NOx sensor replaced under warranty for the first time; regular cost including air cleaner turbo seal would have been $1,350.92. 
Sep 2012

42541 mi
Left rear central door lock inoperabel fixed under warranty; door lock assembly replaced; regular cost after 15% courtesy discount for 2nd repair of another door later was $834. 
May 2013

50843 mi
Auxiliary heater of AdBlue (Urea) tank diagnosed as defective; MBUSA claimed not covered under emissions control warranty though it would not have passed SMOG test. Dealer paid ~$2,200.- from a slush fund. 
Sep 2013

53277 mi

US $834
Right front door lock defective latch assembly; the 2nd on this car; first one fixed under warrant. MBUSA refused to cover anything as warranty had run out; dealer gave 15% discount - cost to me $834. 
Jul 2014

60028 mi

US $1351
NOx sensor replaced for 2nd time; also EGR Temperatur Sensor and air cleaner turbo seal replaced. $1,350.92 
Sep 2014

56633 mi
NOx sensor replaced on April 5th, 2012 had shaken loose. Dealer fixed free of charge as it was their responsibility. 
Oct 2014

66241 mi

US $1676
Turbocharger Intake Shut-off Motor was defective; no spare parts in USA available; had to be imported from Germany. $1,675.89 
Mar 2015

69000 mi

US $504
paid for Bad Glow Plug Control Module. In addition dealer fixed free of charge Turbo Pipe Gree O-Ring seal & V-ribbed belt. Engine oil leak and damage to belt caused by previous repair. 
Sep 2015

75000 mi
Temperature sensor upstream of turbo defective and replaced; $516.06 plus sales tax Replaced 3 engine mounts due to leaks; $1,778.38 plus sales tax 
Oct 2015

75500 mi
Vehicle lost power and went into limp home mode on freeway. Had to dive on emergency strip and reboot car at turnout. Car caused no other trouble. No error codes showed up when dealer tested; no charge. 
Mar 2016

81000 mi

US $5384
2 collapsed air suspension front struts and defective air compressor; all replaced; slow leak on right strut caused left strut & compressor to fail. Tire wear due to consequent bad wheel alignment required 4 new tires not incl. in cost above Turbo inlet pipe seals replaced $186.01 plus sales tax Transfer case input shaft seal replaced and oil replenished $807.84 plus sales tax Backup camera & module finally replaced after years of haggling. Intermittent outages usually when humid or rainy; eat. cost $2,400. Yes, you read that right. MBUSA and dealer paid as problem 1st appeared during warranty period. 
Mercedes-Benz M-Class in California, United States
Mar 2013 - Jul 2013
Jul 2013

60000 mi
Oil cooler seals leaking. Fixed under goodwill warranty work otherwise it would have cost $2200 
Mercedes-Benz M-Class in Iowa, United States
Jul 2013 - Mar 2014
Dec 2013

72000 mi
Oil seal 
Mercedes-Benz M-Class in Maryland, United States
Mar 2014 - Jul 2014
Jul 2014

90000 mi

US $1800
Diesel Emission Fluid tank heater 
Mercedes-Benz M-Class in Maryland, United States
Apr 2017 - Jun 2018
Jul 2017

30000 mi

US $500
Blower motor had some issue 
Mercedes-Benz M-Class in Connecticut, United States
- Jan 2009
Jan 2009 Has about 14,000 miles. Back to dealer once to fix numerous small things: rear windshield wiper motor, right rear power window switch, rear seat belt retractor. What has been a nagging problem is the pollution control system. Has been back 4 times. 
Mercedes-Benz M-Class in Ontario, Canada
Jul 2015 - Mar 2016
Aug 2015

82460 mi

C $2100
Check engine light came on, emission problem diagnosed. 2nd time adblue heater needed replacement 

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2009 Mercedes-Benz M-Class 4dr SUV

503-horsepower 6.2L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Wisconsin, United States
Jan 2019 - Jan 2022
Apr 2019

120000 mi

US $2300
Rear air shocks 
Jan 2022

143000 mi

US $2000
Front air shocks 
Mercedes-Benz M-Class in Washington, United States
Mar 2018 - Jun 2022
May 2018

86000 mi

US $50
whining noise coming from power steering pump... replace reservoir 
Sep 2019

86000 mi

US $200
battery wouldn't hold charge 

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2009 Mercedes-Benz M-Class 4dr SUV

382-horsepower 5.5L V8 7-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Costa Rica
May 2013 - Feb 2017
Feb 2014

43400 mi

$2800
Rear air springs replaced. Rear turn light led Passanger and driver lock doors were not working. 
Jun 2014

47120 mi

$500
Steering pump didn't work. Replaced for a new one. 
Jan 2015

$2100
Door attenuator didnt work 
Mar 2016

65720 mi

$1000
Some parts replaced 

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2009 Mercedes-Benz M-Class 4dr SUV

382-horsepower 5.5L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Washington, United States
Aug 2013 - Jun 2022
Nov 2013

49900 mi

US $19
Leakage in power steering fluid reservoir Broken clip related to trunk cover. 
Feb 2014

51000 mi
Replaced thermostat. 
May 2014

54300 mi
Replacing clips for tailgate interior panel. 
Sep 2014

60000 mi
Tailgate issue. Occasionally would not latch. Replaced latch. 
Dec 2014

61000 mi

US $500
Ignition coil. 
Nov 2017

116000 mi

US $800
Power steering pump replaced 
Mercedes-Benz M-Class in California, United States
Jul 2013 - Jan 2017
Jan 2014

67800 mi

US $670
Rear right turnsignal LED array was burnt out. Part is integrated into taillight, requiring full tailight to be replaced 
Oct 2014

80500 mi

US $60
LCD screen started to develop lines and lose color, eventually become illegable. 
Mercedes-Benz M-Class in Illinois, United States
Dec 2017 - Dec 2021
Mar 2018

44000 mi
Possible defective thermostat 
Jun 2018

45000 mi

US $100
door lock not functioning 

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2009 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic RWD

Mercedes-Benz M-Class in California, United States
May 2016 - May 2017
Sep 2016

114000 mi

US $50
brake lights went several times in two months. Mercedes wants to sell you an expensive new unit. You need to find a mechanic who can clean the connection between socket and light. Mine got done for $50. 

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2009 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in New York, United States
Mar 2013 - Sep 2015
Aug 2013

69000 mi
AC temp senors needed replacing 
Sep 2014

85000 mi
AC not working consistently 
Apr 2015

92500 mi

US $1300
Water pump seal and bearings 
Sep 2015

100000 mi
Ac would stop working intermittently in very hot weather 
Mercedes-Benz M-Class in Pennsylvania, United States
Mar 2013 - Sep 2014
Jun 2013

42000 mi
DVD draining battery 
Jul 2014

50000 mi
DVD was draining battery. Was not defective, just installed wrong when original DVD failed and was replaced by the dealer. 
Mercedes-Benz M-Class in Quebec, Canada
Mar 2017 - Mar 2018
Jan 2018

83700 mi

C $650
wiper arms system 
Mercedes-Benz M-Class in Colorado, United States
Mar 2013 - Jun 2022
Mar 2014

37000 mi

US $836
ignition would not sense the key fob. ignition starter switch was replaced. 
Aug 2017

52000 mi

US $900
thermostat needed replacing 
Sep 2017

53000 mi

US $1400
Both lock actuators on front doors needed replacing 
Mercedes-Benz M-Class in Missouri, United States
Sep 2015 - Jan 2016
Jan 2016

US $320
Thermostat. 
Mercedes-Benz M-Class in New York, United States
Jun 2013 - Jun 2022
Aug 2013

17900 mi

US $650
Basic oil & filter stop, brake calipers replaced, multi-point check & service recall. We wanted the truck checked from top to bottom. Great experience! 
Feb 2015

23000 mi
Auxillary battery replaced under warranty. We were alerted by a dash indicator. Mercedes also told us that the main, original battery would also need replacement soon, including resets, at a cost of $400 or so. 
Apr 2016

31000 mi
Ignition switch failed intermittently; we'd get a readout that key doesn't match the car. Then we'd turn it off, try it again, and eventually it would work. We got a loaner, told them no rush, and repair was warranty covered. 
Sep 2016

32000 mi
One of the headlight bulbs went out. Dealer replaced it for free as a courtesy. 
Feb 2017

35000 mi
CD deck won't eject discs, makes clicking noises for a few minutes on startup, needs replacement. New is expensive so getting a refurb from SoCal Mercedes, will replace myself. Radio works so no hurry.  They replaced a headlight bulb for free 
Aug 2017

37244 mi

US $839
I installed a recon nav/audio but no way to unlock "anti-theft (AT) warning message." Neither dealer, Socal parts or YouTube told me to expect this. Dealer removes unit, obtains pin from their MB internal network, performs start-up to unlock AT, plus software update and coding! Pathetic. This cost $215.  With headlight bulb, inspection, and "B service" total was $839. N/C to "renormalize" the operation of all windows since one of the rears was slow. 
Nov 2017

38000 mi

US $380
Right rear tire replaced. Could not be repaired with a plug so new tire fitted - road hazard warranty for the Continenals purchased 15K miles ago no longer in effect. Slow leak, onboard computer alerted us, dealer found a nail went through the inside sidewall. 
May 2018

38802 mi

US $325
Warning light showed one of the stop light bulbs had failed. Dealer found contacts burnt, with the other side near failure. Installed "stop light socket updates" and two new bulbs. Labor was 235 and parts were 64. 
Jun 2018

42500 mi

US $322
Left rear tire replaced, had been losing pressure for several months, so I just kept refilling it. 
Jan 2019

47291 mi

US $1420
Battery dead, jumped vehicle to get to dealer, replaced battery; Blower motor replaced (it kept running, drain for fresh air intake box clogged malice Front parking lamp bulb replaced. 
Aug 2019

52073 mi

US $667
"B" service + inspection. 
Aug 2020

57590 mi

US $3997
Driver's side window switch panel replaced; "1 year/10K Service" performed; Replace spark plugs; Replace front & rear brakes/rotors; Replace rear springs (one was cracked, was told we had to do both malice Replace all wiper blades; Inspection. 
Mercedes-Benz M-Class in Nebraska, United States
Apr 2014 - Dec 2014
Jun 2014

47000 mi

US $375
Serpentine belt was worn and squealing intermittently Rear seatbelts would not completely retract. MB offered goodwill warranty for labor costs. 
Mercedes-Benz M-Class in New York, United States
Mar 2013 - Jul 2018
Feb 2015

64100 mi

US $250
Replace thermostat. 
Aug 2016

80000 mi

US $300
Replaced Coil Springs 
Jun 2018

100000 mi

US $350
Replaced camshaft sensor magnets to solve P016 problem, but to no avail. Likely causes either: Balance Shaft, Camshaft Adjusters, or Timing Chain. 
Mercedes-Benz M-Class in Ontario, Canada
Feb 2013 - Feb 2013
Feb 2013

77500 mi
thermostat failed thermostat failed 

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2008 Mercedes-Benz M-Class 4dr SUV

turbocharged 221hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Ontario, Canada
- Dec 2009
Dec 2009

16740 mi
Third brake light replaced. Few LED bulbs stopped working. Replacement under warranty. 
Mercedes-Benz M-Class in Ontario, Canada
Mar 2012 - Jun 2022
Apr 2012

24480 mi
Front end shake when driving >100 kph. Dealership balanced all 4 wheels. Mechanic could not test drive at highway speeds due to excessive traffic. Owner still found shake at highway speeds. Return trip planned. 
Jun 2013

63240 mi

C $850
Rear tailgate would not open electrically only manually. Replaced latch and lever mechanism + 2.5 hrs labour. 
Jul 2013

65340 mi

C $950
rear door hatch would not open. Dealership replaced solenoid under warranty and charged for new latch and arm to inflate customer cost, $825. Engine trouble light. Code stated fuel cutoff solenoid defective / required replacement. Reset it, $125. Factory Warranty not honoured by dealership. Found dealership double dipping on warranty. Charging warranty and customer for same repairs. 
Oct 2013

72900 mi

C $455
Fuel cut off solenoid engine error. No output voltage. Solenoid replaced. 
May 2014

93620 mi
Slipping when shifting 1-2, 2-3 Shudder when shifting 3-4, 5-6 Shudder when shifting 1-2. New transmission installed, rebuilt torque converter. 
Jun 2014

94240 mi
Vehicle came back from trani repair. AC not working. Dealer did leak test and claims corrosion on AC lines resulted in leak. Replace lines, dryer, receiver and recharge. Under warranty. Repaired. 
Feb 2016

133700 mi

C $3150
Fuel Pump died on trip to Florida. vehicle towed to Jacksonville dealership and repaired. New pump in gas tank, filters, hose. Left dealership and discovered nav, sat & radio not working. Returned to dealership. Improperly flashed computer. 
Dec 2016

158100 mi

C $368
Rear Door Sw lockout stuck. Could not open rear windows using rear door switches. Replaced Driver side entire door/window/lock switch. 
Feb 2017

161200 mi

C $1035
Drivers door would not lock by using remote. Mechanically closed by reaching from rear door, pushing down, then closing rear door and using remote to lock other doors and alarming vehicle. Door switch replaced. Door locks. 
Sep 2017

173600 mi

C $380
Antifreeze leak from small hose located adjacent to lower rad hose. Small hose rubbing against lower rad hose and worn through. No part in warehouse. No aftermarket hose available. Found one hose in Ohio dealership. Shipping delay resulted in vehicle in shop > 1week. 
Apr 2018

192820 mi

C $280
Engine error code. Replaced 3 cylinder sensor 
Jun 2021

253580 mi

C $850
Oil Cooler Leak. Replaced gaskets and oil cooler 
May 2022

274040 mi
Diesel Emissions recall. Replacement of multip[le sensors, computer programming etc 
Mercedes-Benz M-Class in Alberta, Canada
Aug 2010 - Jul 2015
Nov 2011

46060 mi
Power steering pump failed intermittingly while on a 2500kms. trip, very unsafe situation. 
Feb 2012

49680 mi
Steering shaft coupler to power steering gear seized completely when turning. Very dangerous and a recall is needed as this is common. 
Apr 2014

66120 mi

C $460
Replaced auxiliary battery 

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2008 Mercedes-Benz M-Class 4dr SUV

turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Ontario, Canada
Sep 2011 - Mar 2018
May 2012

37020 mi
rear hatch latch replaced 
Feb 2015

73780 mi
replace engine oil cooler gasket 
Jun 2015

79360 mi

C $700
Drivers signal light not working. Tail light seals leaking & replaced. Electrical control module replaced due to moisture damage. 
Sep 2016

96720 mi

C $380
replace rear driver tail light assembly replace transmission pan, gaskets, oil and filter. pan was rusted so did routine service at same time 
Oct 2016

99820 mi

C $2000
replace crankcase vent valve assembly replace intake servo motor replace upper radiator hose 
Jan 2017

43700 mi

C $600
replaced leaking fuel filter loss of power / check engine light on faulty differential pressure sensor 
Dec 2017

118420 mi

C $1100
replaced pads & rotors 
Mercedes-Benz M-Class in Texas, United States
Nov 2014 - Jan 2015
Jan 2015

US $1200
faulty oil level sensor Electronic key failure 
Mercedes-Benz M-Class in Ontario, Canada
Mar 2012 - Mar 2013
Mar 2013

85560 mi
Engine leaked 1L per week from rear main seal. 5k in repairs 
Mercedes-Benz M-Class in Minnesota, United States
Jul 2013 - Jul 2022
Aug 2013

51700 mi

US $825
Check engine light (CEL)earlier for Temp sensors in emissions, shop cleaned contacts, but CEL returned 2 days later. Since shop could not replicate problem,replaced 2 temp sensors that seemed to be failing, but only on an intermittent basis Aug = a bad month for my "CEL" Sensors! Back again in just 2 weeks for another CEL & Glow Plug warning light briefly illuminating at each startup. Glow plug relay switch was replaced, no issue with plugs. Part was $180, rest was labor/tax 
Jun 2015

73000 mi

US $15
The plastic lever for making manual lumbar adjustments on driver's side broke off, with normal use after 8 years. 
Feb 2016

83000 mi

US $300
Check engine light on. Defective DPF pressure differential sensor. 
Sep 2017

96000 mi

US $275
10 year old xenon low beam headlight burned out. Expensive since it is xenon gas bulb, vs traditional bulb or newer LED 
Dec 2021

136000 mi

US $300
entire rear tail lamp assembly needed replaced as electrial connectors were corroded and unable to be cleaned 
Jul 2022

141000 mi

US $1200
Rear shocks replaced, leaking. Original equipment about 14 years old. 
Mercedes-Benz M-Class in Minnesota, United States
Oct 2013 - Mar 2017
Dec 2013

102000 mi

US $600
Changed oil, severe corrosion on battery,bad tires witch I bought there. Would not honor warrantee on their own website. Very very poor service . Did not know how to fix battery. 
Mercedes-Benz M-Class in Ontario, Canada
May 2011 - Sep 2014
Sep 2013

63240 mi
did not cool I do not know what parts changed 
Mercedes-Benz M-Class in South Carolina, United States
Nov 2012 - Dec 2015
May 2013

60000 mi

US $1000
Rack and Pinion Oil Leak - $2100.00 (Warranty). Oil Cooler Seals - $1,100 (warranty). Engine Belt - $300 (out of pocket). Tail Lamp Wire Harness - $200 (warranty) Air Mass Sensor - $610 (out of pocket). 
Mercedes-Benz M-Class in Texas, United States
Sep 2012 - Jan 2013
Oct 2012

62000 mi

US $400
Leaky air intake into turbo. Oil leakage at first diagnosed as main seal. Leaky fuel tank seal. Diesel would spill out of tank after filling. Fan belt replaced and Service A performed. 
Dec 2012

66000 mi

US $400
MB of Boerne cleared CEL first time indicating it was gas cap lid. Second time stated it was glow plug causing CEL. $~800 to replace. Replaced all six myself, still CEL. Replaced plug controler myself, fixed. Cleared CEL, saved ~$400. Losers 
Mercedes-Benz M-Class in California, United States
Jan 2021 - Jun 2022
Feb 2021

80000 mi

US $800
Rear brakes 
Jun 2022

87000 mi

US $400
Confusing app 
Mercedes-Benz M-Class in Pennsylvania, United States
Dec 2016 - Jan 2018
Oct 2017

141000 mi

US $1000
Took week to get $800 shifting part from Germany re steering wheel.  Quoted 3000 for diesel particulate filter replace and 1000 to fix fuel gauge. Skipped both but got 200 fuel cleaner injection . Still has delayed shift but check eng light went out after a week. 
Mercedes-Benz M-Class in Maine, United States
Aug 2010 - Mar 2015
Sep 2010

22000 mi
wheel sensor replaced. 
Jul 2014

58300 mi
rear main seal and turbo seal replaced, apparently common the service manager said 
Mar 2015

63000 mi
Great vehicle with excellent mileage, comfort and safety. Only negative is the pitiful gaskets used in various places in the engine. Several were replaced at no charge due to extended warranty(expensive). 
Mercedes-Benz M-Class in Utah, United States
Aug 2010 - Mar 2012
Oct 2010

33000 mi
Left rear seat cushion doesn't fold forward. Bad latch. 
Nov 2010

35000 mi
Replaced left rear seat cushion latch mechanism. 
Mar 2011

40000 mi
Driver side outside mirror inop, tech found wire had come unplugged. Re-plugged wire and voila', it works again. 
Nov 2011

50000 mi
Squeak from rear suspension. Bad ball joints. Replaced but had to keep car overnight. Dealer provided loaner. 
Mercedes-Benz M-Class in Oregon, United States
Jan 2014 - Sep 2014
Feb 2014

84000 mi
It appears that the shocks are shot. Will come back for in-depth inspection. Tire sensor appears to be out. Tire pressure is correct. 
Mar 2014

84000 mi

US $1400
Replaced both front struts. Left one was blown. Replaced cabin filter. Aligned. Changed oil (synthetic). Fixed tire sensors. 
Aug 2014

94000 mi

US $12
Very minor: oil cap has a rubber seal that apparently cracked in the heat and permitted oil to escape up through the cap. Was losing oil at about 1 qt per 300 miles. 
Sep 2014

94000 mi
Not sure if this was a problem or just a software adjustment needed. There was a shudder as it accelerated - medium pressure - away from a stop. Appeared to be growing. Didn't notice it when it was purchased. Only had vehicle for 6000 mi 
Mercedes-Benz M-Class in Maryland, United States
Jul 2011 - Sep 2013
Aug 2011

69000 mi

US $1470
Intake runner flap motor and related parts. Car was in Limp mode and shifting badly because of that. 
Sep 2011

70000 mi

US $800
Fuel pump relay, Car would not start randomly, twice in one month. No fuel pressure. Started after 15 mins. Changed fuel pump relay in position K in rear fuse box. No prob in last 24hrs. Hope that was it. Update: problem returned Replaced fuel pump car now starts and runs fine after 2 weeks, problem is gone. The new pump is an updated version that is self cooling. I believe the original pump generated excessive heat when the fuel level got low. 
Mercedes-Benz M-Class in Ontario, Canada
- Apr 2008
Apr 2008

7440 mi
Warranty - Replaced driver's side mirror electric motor - was making small noise 
Mercedes-Benz M-Class in Alberta, Canada
Nov 2014 - Dec 2017
Jan 2016

84760 mi

C $243
AC cuts out at times for no reason and come back on later. For this repair visit, a 'CDI and Aircon firmware update was performed but this did not fix the problem. This problem is still present. 
Feb 2016

95220 mi

C $122
Right front wheel bearing was noisy. Replaced bearing with new bearing. Part cost $121.70. 
Dec 2016

105245 mi

C $101
Replace the Pressure Differential Sensor on the emissions system. The removed part (old part) had a build-up of condensate inside. Not sure if the condensate was the cause of the part malfunction, but the replacing the part fixed the problem of the vehicle going into limp mode when temperatures dropped below -5 degrees Celsius. The whole job took 20 minutes to complete. The vehicle has not experienced the same problem since the part replacement. 
Aug 2017

112271 mi

C $243
Examine the air-con system for faults because of intermittent functioning. Refrigerant pressure check - found to be within correct range; Run test with DAS and charger - component A9 A/C compressor has short circuit; Check AAC control unit - OK; Check compressor electrical plug/connector - OK; Check suction fan - OK. Mechanic recommendation is for the A/C compressor to be replaced (quote $2 000.00) to fix the problem. The air-con compressor was not replaced and the problem still exists. The plan is to have the compressor replaced next spring. 
Mercedes-Benz M-Class in Louisiana, United States
Feb 2015 - Dec 2018
Feb 2016

87900 mi

US $900
Faulty glow plug 
May 2016

89600 mi

US $550
Trunk latch failed 

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2008 Mercedes-Benz M-Class 4dr SUV

382-horsepower 5.5L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Manitoba, Canada
Mar 2012 - Jun 2022
Apr 2012

40700 mi
when you do aggressive turns, it makes a squeaking sound. It sounded like an "American" car. Nasty. The headlights were positioned wrong. At highways speeds, the headlights had a "dark zone" right in the middle. Very dangerous when driving in the dark, as your visibility was only limited to 5 metres ( at dead center). With the car "off", you can hear a low buzz noise from the computer/ main console. It wouldn't shut off. They replaced the computer/ console. 
May 2013

50840 mi

C $200
Spontaneous blow out of the back windshield while parked in the garage. The glass blew out a 4 foot radius in the back of the ML550 in the garage. Auto insurance will pay after my $200 deductible. Not a happy camper !!! 
Dec 2014

57660 mi

C $4400
Mercedes infamous piss poor air suspension blew apart and took out the shocks (rear). An inherent design problem that Mercedes refuses to recognize. In 3 yrs,spent more money on the Benz than i have spent on ALL 5 of my vehicles. YES, all 5. 
Aug 2016

65720 mi

C $4500
balance tires, adjust computer for acceleration Rear hatch does not close because a bolt snapped off the hinge. There's still one bolt barely holding the hinge. They need to cut/ drill out the existing bolt and reposition the hinge and new bolts placed in. This was a cost of $308 cdn before taxes. seat belt not rewinding, would be $712 cdn before taxes. passenger back seat stuck adjust shocks-rough ride oil leak interior fan filter replaced front wheel bearing replaced, brakes replaced 
Jun 2018

88040 mi

C $5500
needed new rear shocks, oil filter seal leakage, front driver side light - full unit replaced as it leaked and sustained water damage. 

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2008 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Georgia, United States
Apr 2014 - Jun 2022
Jun 2014

46000 mi
Repeated intermittent failure of left rear brake light. Wiring connection was melted. Entire component wiring harness replaced. Under warranty. 
Jan 2016 Fuel pump making noise. Replaced as a precaution. Three weeks later, odor of gasoline in vehicle. Returned to shop for diagnosis and repair. Still with shop. 
Apr 2017

79000 mi

US $766
repaired small oil leak @ rear of engine (parts #'s: 272-010-06-31 / 000-998-65-90 / 000-998-56-90) 
Jan 2018

83000 mi

US $2300
Replaced worn lower control arms (left & right). 
Mercedes-Benz M-Class in Kansas, United States
Dec 2013 - Nov 2017
Aug 2014

66000 mi

US $700
Rear spring broke, replaced both,4hrs of labor. took 2 days for replacement springs to arrive from discount part broker. 
May 2016

80000 mi

US $300
Access pulley and belt was close to failing 
Mercedes-Benz M-Class in California, United States
May 2012 - Jun 2012
Jun 2012

31000 mi
Rumbling/loud noise from the suspension when driving on rough roads (asphalt with cracks or bad surface). Dealership blamed the tires, tires were changed and did not fix the issue. After that they claimed it to be normal. 
Mercedes-Benz M-Class in South Carolina, United States
Sep 2010 - Aug 2011
Nov 2010

21000 mi
loud noise from power steering system. belt actuator replaced. 
Mercedes-Benz M-Class in Taiwan
Mar 2011 - Oct 2014
Mar 2012

12400 mi
Parktronic Sensor failed. Another Parktronic Sensor failed. 
Jun 2012

13020 mi

$250
Another 2 parking sensors failed (PTS). One in front and another in rear. 
Sep 2013

16120 mi

$550
Coolant leaking from Water pump. New water pump replaced. 
Oct 2013

16220 mi
ESP malfunction. Replaced steering wheel angle sensor. 
Mar 2014

17112 mi

$100
Engine checked and replaced a new solenoid. Engine Check, replaced a new solenoid. 
Sep 2014

18600 mi

$400
Fuel pump failure. Replaced new fuel pump. 
Mercedes-Benz M-Class in California, United States
Dec 2010 - Nov 2016
Jan 2011

31000 mi
Cam seal oil leak repaired. new seal installed 
May 2014

51300 mi
Strut was leaking and replaced 
Mercedes-Benz M-Class in New York, United States
Aug 2010 - Jan 2011
Oct 2010

62000 mi
Ball joint 
Dec 2010

68000 mi

US $125
Oil cover for cams leaked oil. 
Mercedes-Benz M-Class in Maryland, United States
May 2013 - Jun 2018
Jul 2015

90000 mi

US $62
replaced tailight wiring harness 
Nov 2015

100700 mi

US $175
Wiper fuses. I think relays and other electronic parts and tracing thereof were also necessary. 
Jan 2018

120005 mi

US $250
thermostat 
Mercedes-Benz M-Class in California, United States
Mar 2011 - Aug 2021
Dec 2014

83000 mi

US $1000
leaking gasket New front tires Oil change engine air filter 
Aug 2016

111000 mi
Rear brake light was reporting an error on the dashboard monitor although the brake light was working properly. Independent dealer "tweaked" the wires in the harness and fixed the problem for no charge. 
Feb 2017

120000 mi

US $120
Replaced rear brake light assembly and wiring harness 
Mercedes-Benz M-Class in California, United States
Feb 2011 - Mar 2015
May 2012

80700 mi

US $100
Rear hatch latch replaced 
Oct 2012

84800 mi

US $600
Front passenger side ride adjustment 
Jul 2013

98300 mi

US $100
Fan belt broke 

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2007 Mercedes-Benz M-Class

Engine not specified

Mercedes-Benz M-Class in Ontario, Canada
May 2010 - Jun 2011
Jun 2010

33480 mi
oil leak from engene 

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2007 Mercedes-Benz M-Class 4dr SUV

turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Ontario, Canada
Dec 2009 - Mar 2012
Jan 2010

99200 mi

C $470
Rear light corrosion between bulb holder and light housing.  Emission valve sticking resulting in oil leak near top rear of engine. 
Mar 2010

99200 mi

C $30
Park light burnt out. Corrosion / electrical arcing of rear light bulbs. Cleaned corrosion. Replaced 3 bulbs 
Aug 2010

110980 mi

C $3480
loss of power / limp home mode. injector control module replaced. Glow plugs replaced. Full set three times Glow plug controller replaced twice 
Oct 2010

117800 mi
Engine light / glow plugs burnt out. Oil & Filter change Right front headlight burnt out. Engine light back on 2 days after previous repair. Codes indicate glow plugs defective. All plugs replaced again. Engine light back on 1 day after previous repair. Called garage. They set up Bosch service rep. Controller and glowplugs not matched due to error in Bosch catalogue. Wrong glow plugs used. Garage used NGK glow plugs. No more problems 
Jul 2011

143800 mi

C $848
Left front wheel bearing started to howl. Had to replace ABS sensor on same wheel due to rust preventing removal of sensor 
Jan 2012

124000 mi

C $570
1. Error code- Particulate filter and sensor replaced. 2. New battery. 90% charge, but cold starting became an issue. Starter spun slower then normal and didn't want any issues. 
Mercedes-Benz M-Class in Oregon, United States
Dec 2010 - Jun 2018
Jan 2011

81000 mi

US $450
EGR hose plugged 
Mar 2018

142000 mi

US $2000
auto lights 
Mercedes-Benz M-Class in Oregon, United States
Apr 2011 - Aug 2012
Jul 2011

40500 mi
Oil leak started. Question of whether it was oil, gaskets, or the turbo. It was a gasket leak and was successfully repaired at dealer cost. Luxe Auto actually called after the sale to request for the car to be repaired on their dime. 
Apr 2012

53000 mi

US $180
engine died; after several restarts, went into limp mode. fuel filter replacement only. 
Aug 2012

58000 mi
Brief fade of brakes at a stop. Pedal seems to be less stiff if held for a few mins. Mechanic thought it could be the master cylinder, but couldn't pin it down. A mechanical feature won't allow the brakes to disappear completely. 
Mercedes-Benz M-Class in Missouri, United States
Sep 2009 - Dec 2016
Mar 2010

48000 mi
Replace passenger seat frame. Bracket/bolt broken. Engine had poor throttle response. Upon test drive, they acknowledge that throttle response is slow, but upon checking with factory, they said that it is the design of the engine. 
Aug 2010

51000 mi

US $380
Replaced alternator. The slip rings on the Valeo alternator were completely worn out. Got new alternator from electrical shop. Car was 2000 miles out of warranty. Dealer would not extend warranty.Did work myself in 1/2 day. $380.  
Mercedes-Benz M-Class in Texas, United States
Jul 2010 - Jun 2011
May 2011

70000 mi

US $295
left rear motor burned out as a result of front SAM failing. Have not replaced SAM yet, $1500.00 proposition. 
Mercedes-Benz M-Class in Virginia, United States
Nov 2009 - Apr 2010
Mar 2010

77000 mi

US $1800
Seatbelt module 
Mercedes-Benz M-Class in Maryland, United States
Sep 2009 - Jan 2012
Mar 2010

72000 mi
Oil leak at turbo, this is the second time for a leak in that area. Earlier leak at about 50,000. 
Dec 2010

95000 mi
Oily fluid dripping under car. Coming from bad seal between turbo and intake plenum. Seal replaced by dealer. 
Jun 2011

100000 mi
Car went in to limp mode. No power. Check Engine Light. Dealer found short in wiring and problems with turbo control. 
Jul 2011

100000 mi

US $177
Check engine light came on and car lost power. Restarted and appeared normal. light went off after four cycles of ignition. Diagnostics showed a fuel problem that cleared. Reflashed computer improved performance and fuel economy. 
Mercedes-Benz M-Class in Arizona, United States
Sep 2013 - Jun 2018
Sep 2014

105000 mi

US $3
Limp home mode with no ability to go over 3k RPM. Turbo inlet port motor shorted. Fuses blown with no gases going to turbo. 
Jun 2016

127000 mi

US $6050
Transfer case broken tensioner 
Sep 2016

132000 mi

US $250
Rear SAM unit got wet from unknown source 
Mercedes-Benz M-Class in Alberta, Canada
Sep 2009 - Nov 2011
Dec 2010

74400 mi

C $900
Gear shift stuck Emissions controls issues Electrical issue with lights park and brakes. Caused by corrosion. They had a retro fit kit that was like $275 bucks per light if I recall; they ended up covering mine under the extended warranty, but put up a fight. 
Mar 2011

79980 mi
Navigation was going on and off, resetting and stuff; they needed to replace the "glow plug" behind the nav that keeps it warm, that solved the problem. 
Jun 2011

81220 mi
They wanted $900 to replace the battery. I've never had a battery fail after just five years, decided to have another shop look at it. Found that the cable was just loose. 
Mercedes-Benz M-Class in Colorado, United States
Sep 2009 - May 2011
Sep 2010

32000 mi
Coolant overflow tank cracked, causing low coolant warning light to come on periodically.  
Mercedes-Benz M-Class in Ontario, Canada
Nov 2009 - May 2014
Sep 2010

50220 mi

C $600
Air suspension failure, replaced one rear air shock. 
Dec 2010

55800 mi

C $900
Tailgate right upper hinge - one of two bolts sheared. Had to be drilled out, retapped, and replaced. 
Jan 2011 Replaced right taillight assembly. 
Jun 2013

98580 mi

C $1200
Rear airmatic shock blew out, making the car unsafe to drive. Fourth (or fifth) shock blown in six years. Makes car unreliable if away from an urban centre. Traded car in after this since warranty was expiring. 
Mercedes-Benz M-Class in Massachusetts, United States
Aug 2012 - Dec 2015
Jul 2013

101700 mi

US $1300
Transmission was repaired 
Mercedes-Benz M-Class in New Mexico, United States
Aug 2017 - Jun 2019
Feb 2018

126000 mi

US $1000
Replaced all shocks with Bilstein hd. Original shocks leaking. 
Apr 2018

127000 mi

US $500
Alignment was going to be performed until it was noticed the front boots were leaking. R&R both front CV boots 
Jun 2019

138000 mi

US $10000
Shop destroyed engine attempting repairs. Vehicle totaled. 
Mercedes-Benz M-Class in Texas, United States
May 2014 - May 2015
Mar 2015

119000 mi

US $1215
RR wheel hub replacement 
Mercedes-Benz M-Class in New Jersey, United States
Oct 2015 - Jun 2022
Jan 2016

US $600
Oil Cooler Seal Failed. Need to still replace. 
Jan 2018

112000 mi

US $2600
Oil cooler seal, transmission purge and oil change. Plastics for under body. 
Mercedes-Benz M-Class in Nova Scotia, Canada
Apr 2014 - Aug 2016
May 2014

88020 mi
Pollution 
Mercedes-Benz M-Class in Ontario, Canada
Jun 2014 - Jun 2018
Sep 2014

149420 mi

C $1128
loss of several electrical functions including wipers, horn, keyless entry, turn signals, fuel guage, powere seets. nEventuakl diagnosed as rear SAM due to severe corrosin of the unit. 
Dec 2014

154380 mi

C $718
Fuel gauge read full regardless of actual fuel level. Replaced sending unit. 
Oct 2015

164939 mi

C $420
replace water pump replace right front wheel bearing 
Sep 2017

187686 mi

C $430
replace left rear wheel bearing 
Oct 2017

187894 mi

C $1390
Replace rear shocks and coil springs 

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2007 Mercedes-Benz M-Class 4dr SUV

503-horsepower 6.2L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Michigan, United States
Apr 2015 - Jun 2016
Aug 2015

101400 mi

US $800
replaced the sensor that monitors fuel pressure replaced the intake valve (related to the warning light related to the fuel pressure sensor) 
Jun 2016

122000 mi

US $450
Steering angle sensor 
Mercedes-Benz M-Class in Texas, United States
Nov 2012 - Nov 2014
Dec 2012

61000 mi
Front struts were making noise like a tennis ball bouncing around at slow speeds over bumps. Front struts were replaced for free under CPO warranty. An air regulator sensor was also replaced for free under CPO warranty. Symptom was a CEL on extremely cold days that would go away the next day. 
Jun 2014

72000 mi

US $2700
Leaky tail lamp housings [Left and Right] caused water to get into the car and short out the SAM computer below the spare tire well. Computers had to be replaced and reprogrammed. 
Nov 2014

75000 mi

US $385
CEL w/ P2187. Dealer diagnosed PCV Breather Hose as needing replaced. Paid to replace. CEL back in the next day. Dealer replaced intake manifold under warranty. 2nd repair took about 20 days. 

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2007 Mercedes-Benz M-Class 4dr SUV

302-horsepower 5.0L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Western Australia, Australia
Sep 2009 - Jul 2022
Jul 2010

18600 mi
jerky gear change, from 1st to 2nd only 
Jun 2011

29140 mi

A $400
Oil leak from back of engine. Replaced two seals for $400 total including parts & labour. Car was under extended warranty, but dealer said these seals are not covered, although these seals asre NOT part of normal wear & tear. 
Jun 2015

50840 mi

A $5
leaking O-ring at power steering fluid reservoir (common Mercedes problem) 
Mercedes-Benz M-Class in Florida, United States
Jun 2014 - Jul 2014
Jul 2014

48000 mi
Keyless Go need to be pressed 3 times before engaging. Dealer said replaced control unit. Ordered from Germany. Almost two weeks to ship 
Mercedes-Benz M-Class in Illinois, United States
Nov 2007 - Dec 2012
Jan 2007

3500 mi
passenger front seat motor broken and replaced under warranty 
May 2007

6000 mi
passenger side mirror stuck, dealer said just needed grease. Nov 2007 - bringing back for same repair 
May 2012

59000 mi

US $100
Power steering control diminished. no warning lights. took to dealer - power steering resevoir cracked and pump broken. Covered under extra warranty (post manufacturer warranty) 
Oct 2012

62000 mi
Driver Seat belt randomly unlocking while driving 

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2007 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in New Jersey, United States
- May 2009
May 2009

27000 mi

US $31000
Replaced rear SAM electronics module under warranty to address recurring rear lighting issues, this happened twice during the month of May 
Mercedes-Benz M-Class in Florida, United States
Nov 2009 - Oct 2016
Mar 2010

36000 mi
Replaced exterior molding 
Sep 2011

56000 mi

US $79
Replaced Power Steering pump and reservoir because of seal leak. 
Oct 2011

56700 mi

US $742
Replaced tailgate lock. 
Oct 2012

70000 mi

US $1367
Replaced air compressor, belt pulley, a/c drier, and serpentine belt. 
Nov 2012

70800 mi

US $914
Replaced alternator 
Mar 2015

104000 mi

US $2000
replaced intake manifold, cylinder #5 ignition coil, crankcase vent valve, Cam Housing Plugs 
Oct 2016

133000 mi
MIL Code P0016 and P0017 caused by a bad balance shaft in the engine. Engine will loose power while accelerating. 
Mercedes-Benz M-Class in California, United States
- Dec 2008
Dec 2008

20000 mi
"Check Engine" light came on. Dealer replaced 2 intake cam solenoids. Under Warranty. 
Mercedes-Benz M-Class in Georgia, United States
Sep 2015 - Apr 2018
Aug 2016

79700 mi

US $2100
Flywheel replacement - 
Mar 2017

85000 mi

US $3000
Camshaft Positioning Magnets, Spark Plugs, etc. 
Jun 2017

87000 mi

US $500
Rear Right Brake/Turn Signal Housing Assembly 
Mercedes-Benz M-Class in Latvia
May 2017 - Aug 2018
Aug 2018

119040 mi

€50
Rear parking sensor fail when it is raining so had to replace it. 
Mercedes-Benz M-Class in Illinois, United States
Sep 2009 - Jun 2011
Dec 2009

23000 mi

US $250
Front right low beam headlight replaced - also oil change and "Service A"  
Sep 2010

30000 mi
Check oil light came on, but it was a sensor issue. The oil pan was damaged during the repair and was also replaced. One of my right rear tail-light lights went out. It was promptly replaced. 
Mercedes-Benz M-Class in California, United States
Sep 2009 - Mar 2013
Oct 2009

13000 mi
Engine light on, found to be faulty manifold solenoid. 
Jul 2010

29000 mi
Oil sensor replaced, due to error message "to check oil level during next fill-up" 
Jan 2011

38000 mi
Left brake light changed, the wiring harness had to be replaced, covered under warranty. 
Nov 2011

49000 mi
Solenoid sensor replaced 
Mercedes-Benz M-Class in Florida, United States
Aug 2013 - Dec 2015
Dec 2013

114000 mi

US $5
Repainted lug nuts. Lug nuts were rusty, sanded and painted them silver. Other than that no problems. 
Sep 2014

125000 mi

US $20
Replaced driver low beam headlight.  Identified that insulation on headlight wiring is worn and needs to be replaced. 
Dec 2014

128000 mi

US $1200
Service tech didn't put oil cap on tight. Result was that cleanup had to be done, and serpentine belt replaced. 
Mercedes-Benz M-Class in California, United States
Dec 2009 - Jan 2015
Mar 2010

44340 mi
Rear shock failed (leaked) so both replaced under warranty guidelines from Mercedes Re-programmed transmission control for downshifts 3-2, 2-1 when stopping car at traffic light. Had to replace rear shocks ( right rear) although both were replaced per Mercedes Benz instructions. Transmission was adjusted for smoothness of shifting in controller (per latest software) 
Jul 2013

59200 mi

US $180
Replace power steering reservoir and O-ring seals 
Dec 2014

64000 mi

US $1100
Replace transmission control unit and fluid. 
Mercedes-Benz M-Class in North Carolina, United States
Jan 2011 - Feb 2015
Mar 2011

55000 mi

US $14
Rear windscreen wiper replaced 
Nov 2011

60000 mi

US $170
The sunvisor vanity mirror cover failed, and new sunvisor was installed, new one is improved apparently a common failure in this model and several MB. 
Dec 2014

100000 mi

US $180
Just replaced the original battery 
Feb 2015

100000 mi

US $450
Camshaft position sensor defective 
Mercedes-Benz M-Class in Colorado, United States
Sep 2009 - Sep 2016
Jun 2010

16000 mi
Leaking rear shock..both replaced under warranty 
Sep 2010

19000 mi
Brake light bulb, MB upgraded to new sockets 
Dec 2013

42000 mi

US $20
Leaking oil from expansion cap at rear of engine... 
Feb 2015

48000 mi

US $80
Leaking o-ring where PS reservoir meets PS pump 
Aug 2016

51000 mi

US $150
Brake wear sensor showed wear. However, the problem was actually a speed sensor cable 
Mercedes-Benz M-Class in Illinois, United States
Aug 2009 - Jun 2022
May 2009

35630 mi
replaced camshaft position sensor 
Dec 2012

90461 mi

US $360
replaced engine thermostat 
Apr 2013

95352 mi

US $600
Power Liftgate latch replaced 
Nov 2013

104467 mi

US $173
Power Steering fluid leak. Replaced the reservoir o-ring. Steering Fluid Resevoir O-ring Replacement 
Feb 2014

107300 mi

US $388
Replaced three Rear Camshaft oil seal plugs, and the Breather Housing Cover 
Nov 2014

121000 mi

US $834
Replaced rear shocks 
Nov 2016

149700 mi

US $419
Replaced thermostat 
May 2018

170000 mi

US $43
Left Front Parking Lamp replacement. Labor to remove assembly required. 
Aug 2019

192301 mi

US $830
Power Steering Pump Replacement 
Apr 2021

72827 mi
Replace motor mounts New Spark Plugs Replace left rear brake lines 

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2006 Mercedes-Benz M-Class

turbocharged 6-cylinder diesel automatic 4WD

Mercedes-Benz M-Class in Queensland, Australia
Aug 2009 - Jul 2018
Dec 2009

55800 mi
Failed transmission fluid pipe seal 
Jul 2010

70060 mi

A $890
Had to replace the turbo intake shutoff motor. No problem driving it, just low power (and much better fuel economy!) because the turbo wouldn't work. 
Jan 2011

81840 mi

A $3500
Air suspension on drivers side front needed replacing. Had to order genuine MB parts through Singapore because local MB dealership was going to charge far too much. 
Jun 2011

91760 mi

A $1660
Rear door lock actuator not working properly. Repair shop lubricated. Four new tires. 
Jul 2011

92380 mi

A $360
We had the right rear wheel bearing replaced in early July 2011- a humming noise while going straight and turning left but quiet turning right.  
Dec 2012

124620 mi

A $8500
Front left air shock failed and caused compressor pump failure. Both rear shocks leaking Sway bar knocking noise 
May 2013

136400 mi

A $1000
Rear air bag suspension 
Aug 2013

143480 mi

A $900
Other rear air suspension bag failed. 
Sep 2014

171740 mi

A $2000
Rear passenger door lock replaced. 
Feb 2015

179180 mi

A $1100
Tailgate locking mechanism failed; tailgate would not stay latched and the car could not be locked. 
Mar 2017

207700 mi

A $1296
Replace driver's side front air strut. 
Jul 2018

226300 mi

A $4600
replace intake manifold and turbo seal Replace compressor 

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2006 Mercedes-Benz M-Class

Engine not specified

Mercedes-Benz M-Class in Florida, United States
Oct 2010 - Jun 2011
Nov 2010

53000 mi

US $6500
Replaced Cam Shaft 
Mercedes-Benz M-Class in Maryland, United States
Apr 2011 - May 2011
May 2011

86000 mi
There was a knocking sound while turning the wheels to the left. 
Mercedes-Benz M-Class in Illinois, United States
Oct 2012 - Mar 2013
Dec 2012

125000 mi

US $3000
engine mount and throttle replaced. problem persists. when slowing down or at a stop and go traffic, the car would hesitate, and shake like it was going to stall. intermittent, so far dealer hasn't been able to duplicate. taking it back again next week. 
Feb 2013

126400 mi

US $1500
at this point, i don't even know what need to be fixed anymore, some oxygen thing 
Mercedes-Benz M-Class in California, United States
Jun 2010 - Jun 2011
Jul 2010

37000 mi

US $230
After owning for one week, vehicle acted as if it was going to stall at slow speeds, then while stoped with motor running and foot on the brake, the vehicle would lunge forward. Dealer said previous owner probably used cheap gasoline. 
Mercedes-Benz M-Class in New South Wales, Australia
Jun 2011 - Jul 2011
Jul 2011

48980 mi

A $3000
i am already sick with the car. 
Mercedes-Benz M-Class in North Carolina, United States
Feb 2010 - Mar 2011
Apr 2010

40000 mi
wheel sensors 
Mar 2011

68000 mi
There was a problem with tail light harnesses. At first they said not covered. I balked and said you mean a CPO doesn't mean anything? I said I would take back to dealer I bought from and see what they had to say. They repaired under cpo 

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2006 Mercedes-Benz M-Class 4dr SUV

302-horsepower 5.0L V8 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in California, United States
Aug 2009 - Mar 2010
Sep 2009

47000 mi
Nav screen goes blank and doesn't allow the radio to function even though it still plays on the station it was last tuned to. It will come back on after multiple re-starts or shut off for period of time. 
Mercedes-Benz M-Class in New Jersey, United States
Apr 2011 - Jul 2012
Jun 2011

40000 mi

US $1625
Back in the early part of the summer I noticed when first turning the ac on it was cool for a few min's then the air temp went up! and wouldn't work the rest of the day. 
Feb 2012

42900 mi

US $450
Battery lite keeps coming on, replaced both batteries, still having issues with batt lite coming on intermittently 
Mercedes-Benz M-Class in Georgia, United States
Jun 2013 - Sep 2018
Jul 2013

108000 mi

US $20
Rear Turn left signal went out, front low beam lamp was burnt. AC unit has problems changing the temperatures, it get stuck, doesn't change at all, I figured how to use it,though I knew before I bought it. Dealer says it will cost around $700 to replace it if resetting doesn't fix it.Yet I love the car. 
Oct 2014

115300 mi

US $10
Rear turn light signal, same one done when I bought the car. 
Jun 2015

120000 mi
Problem with door lock actuator, the spring broke, the famous "machine gun" ocurrence. I bought the spring, but didn't work out, then I bought a new actuator at cost $332, plus 2 other things that broke $50 and I paid the $80 for labor. 
Apr 2016

125300 mi

US $360
Started to have a misfire in October 2015, no codes. The car would launch forward sometimes when stopped. A mechanic told me it needed a tune up first. I bought the spark plugs($85), plug wires ($150), labor $120. Everybody charged$5-600 
Dec 2017

135000 mi

US $650
The car would not crank, I switched the batteries of the keys, still didn't work. My buddy works at MB and told me it was the ignition switch EIS. Also I ahd a problem with the car misfiring, so we swtiched the crank shaft sensor and it looks to solved the problems. At a dealer it'd cost $1300. But He helped me out so it cost $650. 
Mercedes-Benz M-Class in California, United States
Jun 2012 - Jun 2018
Dec 2016

98000 mi

US $500
noisy the loosen sway bar 
Dec 2017

101000 mi

US $101000
Parking brake release lever was separated from brake wire. 
Mar 2018

101474 mi

US $400
replace Crankshaft Position Sensor 
Mercedes-Benz M-Class in Virginia, United States
Jul 2009 - Sep 2016
Jan 2011

25000 mi

US $600
Oil leak from engine made smell. Required gasket replacement. Out of warranty. 
Oct 2011

29000 mi

US $500
Drivers seat developed tear with low mileage. Dealer said it is known issue. They replaced the part, I paid for labor. 
Jun 2012

31000 mi

US $170
Idler Pulley: WOBBLES 
Jan 2014

36000 mi

US $5000
Leaks in Airmatic pump, it was replaced. R/R strut air leak, replaced. External mirror faulty--would close repeatedly. Mechanism replaced. 
Jul 2014

39000 mi
Wire in left mirror broken. Odd because the mirror was fixed not long ago 
Nov 2015

45300 mi

US $3000
Another leak in the air suspension 
Mar 2016

46000 mi

US $2000
More problem with air suspension. Rear lights issues also. 

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2006 Mercedes-Benz M-Class 4dr SUV

268-horsepower 3.5L V6 7-speed shiftable automatic AWD

Mercedes-Benz M-Class in Washington, United States
Dec 2015 - Jul 2017
Mar 2016

69000 mi

US $290
Was rear ended which caused the seat belt to tighten and SRS light to come on. Sent SRS module and seatbelt to myairbags.com for repair. Reinstalled and now seatbelt functions properly and SRS light is off. 
Mercedes-Benz M-Class in Missouri, United States
Sep 2016 - Jun 2022
Aug 2017

95000 mi

US $650
Failed speed sensor in conductor plate. Purchased a new conductor plate and installed. 
Apr 2018

99000 mi

US $100
replaced MAF sensor 
Dec 2021

126000 mi

US $50
Replaced thermostat 
Jun 2022

128000 mi

US $75
Intake runner pivot arm 
Mercedes-Benz M-Class in Florida, United States
Aug 2011 - Apr 2017
Aug 2015

54000 mi

US $980
Replaced compressor 
Mercedes-Benz M-Class in Illinois, United States
Dec 2009 - Jun 2011
Feb 2009

72000 mi

US $500
Pulley system for belts needed to be replaced 
Nov 2009

84000 mi

US $450
Driver side seat belt kept getting warning and indicating it was not locked into place 
Jan 2010

87000 mi

US $2100
Needed new air intake system. Needed new Air intake system 
Mercedes-Benz M-Class in Texas, United States
Dec 2009 - Feb 2013
May 2010

44000 mi
Rattle in steering column. Lift gate would not lock. Lift gate actuator make whining sound. Sound like motor bearing going out Drivers side view mirror rattled. Also, reflection appeared shakey. 
Mercedes-Benz M-Class in Arizona, United States
Oct 2006 - Jan 2013
Jun 2006

3680 mi
SRS Indicator on at all times. Performed short test, found code 9200. Performed wiring harness repair per DTB T-B-91.60/93b, cleared codes 
Jul 2007

17568 mi
Transmission clunk when slowing to a stop. Checked in Trans control unit. found new software update, after update, found update for M.E. control unit and installed. Erase all DTC codes after repair 
Nov 2009

50000 mi
Smell of oil after recent oil change. Took to dealer as I only had 75 miles remaining in my 50K warranty. Mechanic disgnosed a leaking plug on the back of the cylinder head. Plug replaced. 
Dec 2009

52000 mi

US $490
600 miles out of warranty, 2 electrical problems - 1. Garage Remote buttons on mirror stopped working. (Dealer paid for new mirror and new door lock $1475, I paid labor.) 2.Rear passenger electric door lock rapidly pulsates after initial acceleration. (Dealer paid for new mirror and new door lock $1475, I paid labor.) 
Feb 2010

53300 mi

US $407
Check engine light. Found code 1085, major leak in purge system. Replaced purge valve and flashed to new ME9.7 Software. Cleared fault code 
Jan 2013

52000 mi

US $1418
Evidence of leaking fluid on garage floor and occasional smell of burning oil. Dealer determined that the Power steering reservoir was leaking. Dealer replaced the power steering oil tank 000-460-25-83 and gasket 000-466-18-80, $398. Vehicle on several occasions starts out in high gear from a dead spot making it very difficult to get vehicle up to speed. Dealer determined a fault code of 2767 and replaced internal transmission conductor plate # 000-270-17-00-88, $1020. 
Mercedes-Benz M-Class in Alabama, United States
- Mar 2010
Jan 2010

50322 mi
Transmission Valve body and control module replaced 
Mar 2010

53000 mi
Replaced front differential 
Mercedes-Benz M-Class in Illinois, United States
Sep 2009 - Jun 2013
Oct 2009

51000 mi
Replacement of passenger foot well carpeting and cargo net under warranty.  
Aug 2010

66000 mi

US $250
The service trip was for routine maintenance. I asked the mechanic to investigate a noise in the suspension and a defective bearing in the steering column was discovered and repaired. 
Aug 2011

79000 mi

US $300
The level sensor on the passenger side front would cause the suspension to adjust one side of the car to be higher than the other. 
Dec 2011

88000 mi
The car had an SRS failure. The harness for the airbag system was defective. 
Feb 2012

88000 mi
The starter motor would work intermittently. 
Jun 2013

96000 mi
Oil leak. Air suspension problems. 
Mercedes-Benz M-Class in Georgia, United States
Sep 2017 - Apr 2018
Apr 2018

182000 mi

US $650
New front struts after one started to fail. 
Mercedes-Benz M-Class in Ontario, Canada
Apr 2012 - May 2013
Mar 2013

65720 mi

C $2000
Differential replaced 
Mercedes-Benz M-Class in Maryland, United States
May 2013 - Jun 2014
Jun 2013

104000 mi

US $400
Compressor had intermittent fault. MB refused to fix it under warranty. Nav Processor failed. Bought COMAND unit off an auction site, paid a tech to replace the Nav Processor 
Oct 2013

108700 mi

US $120
Right tail light did not work, and replacing the bulb did not fix it. Oddments tray would not stay retracted. 
Dec 2013

112000 mi

US $600
CD Nav failed. I bought an entire radio/nav head off of eBay. An independent tech removed the old NAV head and replaced it with the "new" used one. Works great, but you lose all your addresses. 
Mercedes-Benz M-Class in North Carolina, United States
Dec 2010 - Aug 2016
Apr 2015

81700 mi

US $1000
Right reat door lock mechanism; rear liftgate lock mechanism. 
Apr 2016

91000 mi

US $140
New secondary battery. 
Mercedes-Benz M-Class in Georgia, United States
Jan 2016 - Nov 2018
Jun 2016

130000 mi

US $750
Replaced failed front differential bearings 
Dec 2016

137000 mi

US $191
Cylinder #1 misfire, Replaced #1 coil pack and all spark plugs. Found that #1 plug had failed. Electronic Ignition Switch (EIS) failed. Replaced by dealer 
Aug 2017

146762 mi

US $980
Vacumn leak at intake manifold showing code for lean at idle bank 1. Intake manifold and some brittle vac hoses were replaced. 
May 2018

155000 mi

US $54
Replced master window control 
Mercedes-Benz M-Class in Maryland, United States
Dec 2011 - Feb 2016
Oct 2013

78300 mi

US $350
Lift-Gate lock and release mechanism failed. Replaced unit. 
Apr 2014

81800 mi

US $300
Leaking steering fluid reservoir 
May 2015

93000 mi

US $850
Rear liftgate struts needed replacement. Dealer and non-dealer authorized repair said struts for electronic tailgate were $400 each. Seemed high, but purchased anyway. 
Mercedes-Benz M-Class in Great Britain
Nov 2013 - Jan 2015
Jan 2014

76000 mi

£65
no.2 cylinder ignition coil breaking down 
Jul 2014

79000 mi
replaced wheel speed sensor and bracket, D service rattle timing chain Oddments tray would not stay retracted. 
Sep 2014

80000 mi

£1200
camshaft timing gears 
Mercedes-Benz M-Class in Ontario, Canada
Dec 2010 - Jun 2012
Jan 2011

66960 mi

C $1100
Had to repair door locking mechanism on the driver's door 

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2006 Mercedes-Benz M-Class 4dr SUV

Mercedes-Benz M-Class in Ireland
Oct 2015 - Sep 2017
Aug 2016

126920 mi

€600
Turbo losing pressure - not fixed 
Oct 2016

127100 mi

€150
Same problem as before - turbo losing pressure The turbo has been rebuilt but still not fixed A pressure sensor was replaced - didn't fix the problem 

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2006 Mercedes-Benz M-Class 4-door

turbocharged 6-cylinder diesel automatic AWD

Mercedes-Benz M-Class in Western Australia, Australia
Dec 2013 - Dec 2015
May 2014

84940 mi
converter shudder, changed filter, fluid, drained converter, fixed 
Apr 2015

94440 mi

A $200
rear airbag d/side 
Jun 2015

95480 mi

A $500
change 6 glow plugs and glow plug controller 
Mercedes-Benz M-Class in France
Nov 2010 - Aug 2012
Dec 2010

57660 mi
At low RPM and middle range temperature, engine has temporary little cuts. EGR valve replaced. Also unexpected automatic gear box hydraulic converter... Airmatic pneumatic suspension compressor has been replaced after check light appeared. Before the repair, the defective compressor was running for long time even when I was stopping the car. 
Jul 2011

66340 mi
Airmatic air compressor destroyed due to air leak on suspension system after non conform previous repair horn of the car put on from time to time with no action on the central switch on the steering wheel 
Aug 2012

79360 mi

€750
Scary noisy front drivetrain when driving. Took long time at dealer to finaly detect a defective front left wheel bearing. Really not accceptable for a car driven only on nice roads for 128,000 km... 

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2006 Mercedes-Benz M-Class 4-door

turbocharged 6-cylinder diesel automatic 4WD

Mercedes-Benz M-Class in Victoria, Australia
Sep 2016 - Jun 2018
Nov 2017

116560 mi

A $3800
Right hand rear air suspension replaced. Rear brake rotors and pads. 

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2005 Mercedes-Benz M-Class 4dr SUV

288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Sweden
Jun 2016 - Feb 2019
Sep 2016

9610 mi

$8000
Replacement of AC compressor 
Jun 2017

9920 mi

$14000
Replacement of both rear air dampers 
May 2018

10540 mi

$500
Replacement of AC booster fan and warranty change of the AC compressor Xenon lamps replacement 
Sep 2018

10540 mi
Replaced parking light bulb 
Mercedes-Benz M-Class in Nevada, United States
- Dec 2009
Dec 2009

94000 mi

US $1800
Check Engine light was on. Dealer replaced fuel injectors, flash ecu. Also put on new brakes and oil change. 

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2005 Mercedes-Benz M-Class 4dr SUV

232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in New York, United States
- Mar 2012
Mar 2012

78562 mi
bad cps, running good after replace it 

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2004 Mercedes-Benz M-Class 4dr SUV

232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in California, United States
- Sep 2015
Sep 2015

159000 mi

US $460
Valve cover gasket replaced and valve cover and surrounding area cleaned. 
Mercedes-Benz M-Class in New Jersey, United States
Jun 2008 - Mar 2021
Jul 2008

19500 mi
Rear seat fold release lever cable broke. N/C repair. 
Jan 2009

24633 mi
Replaced leaking power steering pump. Extended warranty covered $941.75 repair cost. 
Mar 2009

25923 mi
Check Engine light diagnosed as vapor leak requiring new gas cap ($116.00) and fluid leak required transmission pan gasket and fluid replacement ($274.00). Extended Warranty covered repair costs. 
Jun 2009

29000 mi
Front right electronic door lock failed - actuator replaced. Extended Warranty covered $381 repair cost. 
May 2018

100000 mi

US $300
Air conditioning blowing warm air 

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2003 Mercedes-Benz M-Class 4dr SUV

342-horsepower 5.4L V8 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in California, United States
Jun 2012 - Dec 2015
Sep 2015

105000 mi

US $950
Replace radiator. 

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2003 Mercedes-Benz M-Class 4dr SUV

288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in California, United States
Jun 2012 - Mar 2013
Nov 2012

97500 mi

US $1900
Valve cover gaskets leaking oil and needed replaced. Engine mounts worn out and needed replaced. 
Mar 2013

105000 mi

US $1100
Torsion bar bearing broke, when replacing the bearing the captive nut on torsion bar cage had welds break loose and didn't allow torsion bolt to be loosened or tightened. Had to replace whole torsion bar assembly. 
Mercedes-Benz M-Class in North Carolina, United States
Jun 2015 - Jul 2016
Jul 2016

169000 mi

US $1200
Replacing crankshaft position sensor  Replacing speed turbine sensor 
Mercedes-Benz M-Class in California, United States
- Jun 2008
Jun 2008

45000 mi
Power Steering hose burst. Covered by factory under unwritten part specific warranty. 

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2003 Mercedes-Benz M-Class 4dr SUV

232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Michigan, United States
May 2014 - Jun 2022
Nov 2014

125000 mi

US $300
Replaced inop mcs/radio with a good used one. 
Jan 2015

159800 mi

US $160
Alternator had a diode going bad, repalced alternator Speed sesnor failed, driver's rear. Changed both rear sensors. 
Sep 2015

150000 mi

US $125
No low wiper speed = replace combination switch 
May 2016

176000 mi

US $250
Both lower ball joints, front end, plus had to buy a set of ball joint passes, but what I bought works on another car I own. I included the cost of the tool in the repair 
Jan 2017

140800 mi

US $650
Leaking cooler hoses - replace Rack oil hose to cooler leeking Replace battery with a Mercedes Battery Replaced both inner and outer tie rods, both sides, and both lower ball joints, front 
Jan 2018

193000 mi

US $125
Drive shaft support bearing 
Mar 2021

220000 mi

US $200
Radiator replaced,  along with belt tensioner and idler 
Mercedes-Benz M-Class in British Columbia, Canada
Sep 2014 - Jun 2016
Sep 2015

142600 mi

C $600
change of wiper motor, gear not cutting for the wiper. 
Mar 2016

144460 mi

C $520
Alternator failed and did not charge the battery properly. As a result, the engine light alarmed and the car stopped while driving. blower did not work properly. The arm of the moderator broken after years of service. Need a new part from dealer. Had to wait and scheduled the other day of service because of parts needed. 
Jun 2016

144460 mi
1 lower front ball joint, 2 inner tie rods and 2 outer tie rods, steering rack boot kits needs to be replaced. And alignment is expected after the job. estimated total parts and labour cost $1250. 
Mercedes-Benz M-Class in North Dakota, United States
Dec 2011 - Jan 2012
Jan 2012

US $600
Defrost airflow was weak to windshield...flaps were not opening fully. I believe a part of the linkage was replaced. 
Mercedes-Benz M-Class in United Arab Emirates
Mar 2016 - Sep 2021
Mar 2016

230640 mi

¤2000
Oil leak reported. Found to be problem with Steering pump. Steering box was changed and steering pump was repaired 
Jun 2016

235600 mi

¤250
Steering rack leakage. I've been topping up steering oil every week (500 ML per month) which costs me $3 a month. New rack would cost 400-500 and not easy to get. 
May 2017

272800 mi

¤500
Compressor, Condensor Changed Still Leaking from Steering Kit Twice the Steering Kit was changed; Both times from scrap (trustworthy accident cars, which is common in this part of the world to get parts from scrap) without warranty. Now the cost of changing actually reached at least 30-35% of cost of new part Need to replace tie-rod ends, But waiting to resolve Steering issue 
Mercedes-Benz M-Class in Pennsylvania, United States
Jan 2016 - Jun 2016
Feb 2016

143300 mi

US $1000
two new rear struts with springs, two new tires 

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2003 Mercedes-Benz M-Class 4dr SUV

215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Oregon, United States
May 2022 - Dec 2023
Jul 2022

99000 mi

US $1300
A leak was noted at a prior oil change with required a replacement of seals. 
Aug 2022

100000 mi

US $1000
AC system replacement 
May 2023

104000 mi

US $800
alternator failure. 
Sep 2023

105000 mi

US $1400
steering pump failure and leak. 
Mercedes-Benz M-Class in California, United States
Jun 2012 - Sep 2013
Mar 2013

104000 mi

US $450
Replaced radiator for the second time. As it was only 20 months, only paid for part. 
Sep 2013

109000 mi

US $475
Power steering pump, hoses, etc. There was a recall but vehicle had passed the acceptable date. 
Mercedes-Benz M-Class in California, United States
Jul 2015 - Jul 2018
Feb 2017

145000 mi

US $150
replaced all drums and pads 
Mercedes-Benz M-Class in Ontario, Canada
Jun 2012 - Aug 2012
Aug 2012

80600 mi

C $475
Engine was stalling. System check found internal resistance on the crank sensor was 1200 OHMS (too high. Sender unit was replaced. 

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2003 Mercedes-Benz M-Class 4-door

turbocharged 5-cylinder diesel automatic 4WD

Mercedes-Benz M-Class in Spain
Mar 2015 - Sep 2018
Dec 2015

128960 mi

€2000
fuel admision problems and intermittent problems to start the engine replacement of fuel pipes, cleaning of admission system and installation of a fuel anti return system in the pipe from tank to engine 

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2003 Mercedes-Benz M-Class 4-door

turbocharged 4-cylinder diesel automatic 4WD

Mercedes-Benz M-Class in Great Britain
Dec 2012 - Dec 2015
Aug 2013

89000 mi
Took for mot, broken rear spring found. 
Dec 2013

91000 mi

£75
Replaced battery 
Apr 2015

96200 mi

£54
AC not working reacharged 

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2002 Mercedes-Benz M-Class 4dr SUV

288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Missouri, United States
- Mar 2010
Mar 2010

72000 mi

US $1100
Replaced booster motor for rear hvac system. 
Mercedes-Benz M-Class in New York, United States
Jun 2017 - Jul 2018
Oct 2017

99000 mi

US $300
Power steering line severed. Battery replaced. Attempted to repair motoring lock issue, but unsuccessful before pickup. Owner took terrible care of car. 

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2002 Mercedes-Benz M-Class 4dr SUV

215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Texas, United States
- May 2011
Dec 2007

51000 mi

US $150
Replace MAF sensor insert. 
Jan 2008

US $200
R&R defective brake lamp switch R&R Engine air cleaner element R&R Cabin air cleaner element 
Jul 2009

65000 mi

US $750
Shake at stop in gear Rough idle/hesitation when very hot R&R Engine mounts R&R Transmission mount R&R spark plugs 
Oct 2009

67000 mi

US $500
R&R battery – M-B OEM Flush brake fluid Rotate and balance tires Adjust engine idle speed 
Dec 2009

70000 mi

US $1000
R&R engine air filter element. Evacuate and recharge AC, fill to 1.65 lb R&R Plug wires Flush cooling system – M-B coolant 50/50 w/distilled water R&R front brake pads and wear sensor. R&R front rotors 
Jan 2010

71000 mi

US $200
Minor coolant leak. R&R Serpentine belt; check pulleys R&R Upper and lower radiator hose Pressure test cooling system R&R dash lamp  Sudden PS fluid leak. R&R power steering fluid reservoir and O-ring - Mercedes-Benz OEM Fill with Mercedes-Benz OEM power steering oil Bleed system 
May 2011

83000 mi

US $30
R&R defective brake lamp switch 
Mercedes-Benz M-Class in Virginia, United States
- Jun 2016
Sep 2013

144000 mi

US $1400
motor mount Replace hose 
Jun 2016

160000 mi

US $900
throttle sensor, valve sensor, 

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2001 Mercedes-Benz M-Class 4dr SUV

268-horsepower 4.3L V8 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Oregon, United States
- Jan 2011
Jan 2011

116000 mi

US $130
Replaced window control unit 
Mercedes-Benz M-Class in California, United States
May 2013 - Sep 2018
Oct 2013

102200 mi

US $4900
Transmission leaking Suspension repaired Tune up Breaks valve cover leaks Water pump 
Sep 2014

107000 mi

US $1000
oil leaks. Valve cover gaskets 
Dec 2014

107000 mi

US $800
shocks and alignment 
Jun 2015

107000 mi
replaced cracked windshield washer tank 
Sep 2017

149370 mi

US $400
Address valve cover leaks partially successful. 
Mercedes-Benz M-Class in Idaho, United States
Feb 2016 - Mar 2016
Mar 2016

172000 mi

US $500
All Activity Module failed, needed replacement and reprogramming. 

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2001 Mercedes-Benz M-Class 4dr SUV

215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in California, United States
Jul 2013 - Aug 2014
Jul 2014

128300 mi

US $800
A pillar trim cover came loose rear gate no longer locks with remote AC condenser no longer working. 

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2001 Mercedes-Benz M-Class 4-door

turbocharged 5-cylinder diesel automatic 4WD

Mercedes-Benz M-Class in Netherlands
Nov 2017 - Jun 2022
Jun 2018

141980 mi

€300
replaced 2 broken bulbs inside the cockpit odometer (dash) 
Mar 2019

145700 mi

€100
Dissassembled intake manifold wich was leaking boost and oil. Removed butterflyvalves, pluged holes with m16 bolts. Assembled it and mounted it back on the car. Cleaned the intake-side of the engine from the gunk that build up there while the intake was off. ...Its a pain-in-the-ass-job because no space 

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2000 Mercedes-Benz M-Class

Engine not specified

Mercedes-Benz M-Class in British Columbia, Canada
Sep 2009 - Mar 2010
Oct 2009

97340 mi

C $450
Auto door locks not functioning properly. 
Mercedes-Benz M-Class in California, United States
Feb 2011 - Apr 2011
Apr 2011

152000 mi

US $400
power steering fixed; part of it was cracked and was leaking fluid leak in the air conditioning system fixed 
Mercedes-Benz M-Class in California, United States
Jan 2015 - Feb 2015
Feb 2015

148000 mi
Car wont shift to high gear. Diagnosed bad transmission. Ended up changing the trasmission 

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2000 Mercedes-Benz M-Class 4dr SUV

268-horsepower 4.3L V8 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in New York, United States
Oct 2013 - Feb 2014
Jan 2014

US $50
Contacts for power window switches began to slip. Eventually reached a point where windows would no longer roll up. Purchased aftermarket master control panel and replaced unit. 
Mercedes-Benz M-Class in British Columbia, Canada
Sep 2012 - Dec 2013
Dec 2012

99820 mi

C $150
Bose mcs no audio Rear wiper stopped working 
Feb 2013

100720 mi
Water leak into passenger side. Sunroof drain line was dislodged from opening in lower side kick panel. drain line fitting was placed back into position. 
Sep 2013

104780 mi

C $125
Cracked catalytic convertor Oil leaks from oil filter housing, noisy idler pulley 

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2000 Mercedes-Benz M-Class 4dr SUV

215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range

Mercedes-Benz M-Class in Washington, United States
Mar 2010 - Mar 2015
May 2010

103300 mi

US $45
Failing crankshaft position sensor 
Oct 2011

113000 mi

US $250
Battery replacement, corrosion on battery tray required cleanup & repainting 
Nov 2011

113300 mi

US $500
Replaced failing water pump. Preventively replaced serpentine belt and idler pulley. 
Oct 2014

125300 mi

US $200
Rf brake seized 
Mercedes-Benz M-Class in Michigan, United States
Mar 2010 - Jan 2014
Jan 2011

120000 mi

US $225
Brake Light Switch broken, controls brake lights and cruise control. 
May 2011

125500 mi

US $215
Drivers window switch would not return window to closed position. Window stuck open. Purchased new switch panel and installed myself. Replaced window switch panel. Driver's side window stuck in down position.  
Jun 2013

154000 mi

US $400
Car stalled and died when warm. Took it to dealer (3 days), they couldn't figure it out. Took it to other shop, they figured it out--crank position sensor--but lots of labor time made it more costly than if it would have just thrown a code. 
Oct 2013

156800 mi

US $700
Needed new springs. 
Jan 2014

161000 mi
Quite a bit of a rust problem underway. 
Mercedes-Benz M-Class in South Australia, Australia
Dec 2009 - Jul 2022
Jan 2011

89280 mi

A $52
Car wouldn't start after sitting for 2 hours, after a 3 hour drive. No indications on dash, no check engine light. Went through fuse box, checked all fuses pertaining to engine. Found a possibly loose fuse, reset it and the the car started Ran scanner for codes, indicated P0355 (CPS) and CEL on. ordered and replaced CPS, CEL light bulb replaced. Reset CEL and codes. 
Apr 2011

93000 mi
noticed a slight vibration thru steering wheel, after another 50km steering produced noise, vibrations hard steering. diagnosed leaking steering hose at radiator joint. Cut hose back, reattached, refilled with fluid all ok 
Dec 2011

99200 mi

A $147
nil operation, regassed, diagnosed tx valve unservicable, replaced tx valve and receiver drier. 
Mar 2014

122140 mi

A $514
loss of A/C gas Scrubbing out tyres, poor handling. A wheel alignment was carried out with the finding that the upper right hand control arm bolts were loose. Previous wheel aligner failed to torque the bolts. 
Mercedes-Benz M-Class in Virginia, United States
Nov 2009 - Dec 2012
Nov 2011

127000 mi

US $787
Cat coverters were under a recall campaign several years ago. MB looked at truck at that time and determined nothing was wrong. A year ago the converter broke as expected from the recall, but MB refused to honor recall. Now, cat died. 
Apr 2012

134300 mi
All Activity module replaced; car totally dead, no electrical power coming into circuit 15 
Aug 2012

136800 mi

US $428
Brake booster replacement 
Mercedes-Benz M-Class in California, United States
Aug 2009 - Sep 2015
Sep 2009

122000 mi

US $120
Drivers side outer tie rod end is worn out. Needs replacement. Part ordered online for $49 plus shipping 
Dec 2009

124000 mi

US $59
Crank Shaft Positioning sensor failed causing preventing the engine from starting. 
Jun 2010

132000 mi
repaired EGR valve 
Feb 2014

150600 mi
Special edition sliding roof louvre stuck causing the metal guide to break requiring the roof to be closed manually and then made inoperable. Too difficult and expensive to repair. Do not recommend this vehicle because of this feature. 
Nov 2014

153300 mi

US $100
Replaced battery 
Dec 2014

154000 mi

US $60
Passenger high beam bulb out. Replaced high and low bulbs 
Apr 2015

157700 mi

US $250
Passenger side front for lock malfunctioned and car lock system stopped working. Had to replace the entire lock assembly. 
Mercedes-Benz M-Class in Alabama, United States
Dec 2013 - Dec 2014
Jul 2014

186000 mi

US $1
the brain of the car they said that operates the dashboard and lets you know how much gas you have and heater etc it still doesnt work right the air does not work now nor the locks and the radio since they fixed the box 
Mercedes-Benz M-Class in New York, United States
Aug 2009 - Apr 2012
Sep 2009

105000 mi

US $900
took 2 trips. after first trip, rear sensor wheel sensor replaced but problem recurred. after other rear wheel ABS sensor replaced, problem seems solved. 
Jun 2010

108000 mi

US $380
EGR valve bad 
Nov 2010

108900 mi

US $300
brake front rotors pads and rebuilt calipers 
Jan 2011

109300 mi

US $883
brake lines replaces from ABS control to rear calipers 
Jul 2011

111000 mi

US $185
no start/ hot engine intermittent. Replaced Crankshaft Position Sensor. 
Feb 2012

113000 mi

US $400
deteriorated hydraulic lines on steering rack. 
Mar 2012

113000 mi
replace window switch module 
Mercedes-Benz M-Class in Illinois, United States
Jun 2014 - Dec 2014
Sep 2014

132000 mi

US $75
Hydraulic lines inspected, significant rust indicated lines needed R&R soon. significant noise, blowby catylic/muffler. 
Mercedes-Benz M-Class in Oregon, United States
Feb 2014 - Feb 2014
Feb 2014

98000 mi

US $217
replaced the belt tensioner 
Mercedes-Benz M-Class in Alabama, United States
Mar 2014 - Apr 2015
Apr 2015

211000 mi

US $365
A pothole caused a rusty brake line to snap and leak brake fluid. The shop promptly replaced the rusted lines and bled the brakes. 
Mercedes-Benz M-Class in Virginia, United States
May 2012 - May 2012
May 2012

111000 mi

US $800
Leaking oil from top and bottom of pan; and rear of pan. Leaks were from seals, with no pressure impact on engine. Oil leak at seals of oil pan. 
Mercedes-Benz M-Class in South Africa
Mar 2011 - Jun 2011
Jun 2011

109120 mi

R 3000
Vehicle got stuck in 1st gear. Had to replace electronics in gearbox. 
Mercedes-Benz M-Class in Florida, United States
Jan 2011 - Apr 2017
May 2014

119000 mi

US $200
Power steering pump leaking. R & R pump. Also replaced serpentine belt. 
Mercedes-Benz M-Class in Sweden
Mar 2011 - Jan 2022
May 2011

124620 mi
Fuel pump worn and not working. I hade to replace it. It was easy to replace after some research on internet. 
Oct 2011

130200 mi
Crankshaft sensor defekt. Engine did not start when it was warm. After cooling down it started again. After the sensor was replaced everything works fine. 
Jan 2014

148500 mi
I had to change the ETS unit. 
Apr 2014

147140 mi
I still have some electrical problems that I havent solved. The car works for a couple of minutes then the BAS/ESP and ETS Light comes on. I am searching for a solution to the problem. The ETS light goes on as soon as I press the brakepadal. 
Mercedes-Benz M-Class in California, United States
Aug 2009 - Jun 2022
Mar 2010

37000 mi

US $20
Cracking idler pulley (still usable), replace along with tensioner and belt as preventative maintenance 
May 2014

43000 mi
AC system not getting cold, recharged it with R-134a 

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2000 Mercedes-Benz M-Class 4-door

turbocharged 5-cylinder diesel automatic AWD

Mercedes-Benz M-Class in Finland
Jun 2010 - Apr 2016
Jul 2010

99820 mi

€1200
Intake manifold, swirl flap axle missing, whoosing sound as pressurized air escaped, new intake manifold ordered. Shop broke cooler liquid expansion tank hose connection. 
Aug 2010

101520 mi

€1200
New intake manifold installed. cooler liquid expansion tank replaced 
Dec 2010

109740 mi
Driver seat right side rail failed near adjustment piece. Fixed. 
Mar 2011

115320 mi
Diagnosis for worn out wiper blade motor. Failure propably due to trying to use wipers when blades were frozen stuck to windscreen. 
Oct 2011

128000 mi

€1200
Rear coil springs have snapped. Must replace shock absorber and coilover on both sides. Left front, upper control arm ball joint loose, failed in annual safety inspection. Must replace whole upper control arm. 
Jun 2012

143840 mi

€800
Connector plate replaced (heat sensor, rotating speed sensor malfunctioning) Lateral acceleration sensor failed, caused front brake jamming and overheating. ESP warning light on. Sensor replaced. 
Sep 2012

149420 mi

€50
Car felt a little bit restless while cornering. After replacement goes like on rails. 
Jun 2013

168640 mi

€450
Whistling sound: Exhaust manifold loose: One broken bolt, many others loose. Turbo support loose from other end. Fix: Tightened, $50. Intermittend loss of power: Honeycomb of second catalytic converter broken loose. Turned sometimes sideways, blocked exchaust gas flow totally. Replaced with used catalytic converter, $400. 
Oct 2013

175640 mi

€120
Crankshaft sensor misbehaving. Car wouldn't start. 
Apr 2014

185560 mi

€300
Thermostat stuck, nearly no heat to cabinet, replaced 
Sep 2014

195920 mi

€170
Front tyres excess wear on outside, too much toe in because of bad tie-rod end. Tie-rod end replaced and 4-wheel alignment done. 
Dec 2014

200260 mi

€45
Lack of power, felt like no turbo. Would operate normally few minutes after start but then failed to accelerate properly. Rev would not go past 3000rpm. Tested with Star, problem was cut-off vacuum line next to turbo. Vacuum line reattached. 
Feb 2015

203980 mi
HVAC fan motor died. Replaced with aftermarket part. 
Mar 2015

204600 mi

€80
BAS, ETS, ABS lights on constantly. ABS pump motor brushes worn out. Brushes changed, modified from a small hand tool brushes. 
Jun 2015

209560 mi

€550
One CDI injector attachment bolt shredded threads on the valve cover and rose up. Valve cover had to be removed and rethreaded. All injector seals and bolts replaced. 

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2000 Mercedes-Benz M-Class 4-door

8-cylinder automatic AWD

Mercedes-Benz M-Class in Oregon, United States
Aug 2009 - Dec 2009
Dec 2009

115000 mi

US $600
oil light came on. Oil was very low and had to be added. Oil leak. 

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2000 Mercedes-Benz M-Class 4-door

6-cylinder automatic 4WD

Mercedes-Benz M-Class in Ontario, Canada
Oct 2009 - Mar 2010
Dec 2009

145700 mi

C $1800
front-end suspension (tie-rods, ball joints, etc.) 

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1999 Mercedes-Benz M-Class

Engine not specified

Mercedes-Benz in Ontario, Canada
Jun 2014 - Jul 2014
Jul 2014

76880 mi

C $2800
CV joints wear out prematurely loud humming noise loud noise 
Mercedes-Benz in Florida, United States
Mar 2015 - Mar 2015
Mar 2015

203000 mi
replaced leaking expansion plug seal 
Mercedes-Benz in Maryland, United States
Nov 2013 - Jan 2014
Jan 2014

151000 mi

US $1500
Water pump needs replacement 
Mercedes-Benz in Colorado, United States
May 2015 - Feb 2016
Feb 2016

152000 mi
Vibration in transmission and hesitation to shift down at 22mph 

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1999 Mercedes-Benz M-Class 4-door

8-cylinder automatic AWD

Mercedes-Benz in Saskatchewan, Canada
Aug 2011 - Jun 2012
Mar 2012

86180 mi

C $500
Transmission gasket leaked. Had gasket replaced, new transmission filter and trans oil change. 

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1999 Mercedes-Benz M-Class 4-door

6-cylinder automatic 4WD

Mercedes-Benz in Washington, United States
Aug 2011 - Jun 2018
Aug 2012

172100 mi

US $600
leak in system 
Dec 2012

175000 mi

US $1000
Fuel Pump 
Dec 2013

196000 mi

US $15
Brake Light Switch 
Apr 2014

200700 mi

US $511
The car made a loud hydraulic noise whenever I turned the wheel. I took it to the shop and they had to replace the Power Steering fluid, power steering reservoir seal, accessory drive belt and idler pulley. 
May 2014

202000 mi

US $705
Due to issues with the previous repair on the belt, the serpentine accessory belt snapped, due to the tensioner pulley seizing up. The car had to be towed (by MB roadside assistance) and fixed. 
Sep 2014

207000 mi

US $500
Replaced outer tie rod end, conducted a wheel alignment and adjusted the ride height. Replaced a leaking 13 pin transmission connector 
Oct 2014

207500 mi

US $1600
Replaced slightly leaking power steering rack. Replaced rear suspension 
Dec 2014

210000 mi

US $1200
Replaced power steering pump as dealer did not bleed PS system properly, leading to pump failure. 
Aug 2017

240000 mi

US $1500
Replaced compressor 
Apr 2018

242000 mi

US $1000
Replacement of AC Schrader valve 

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1998 Mercedes-Benz M-Class

Engine not specified

Mercedes-Benz in Ohio, United States
- Oct 2021
Oct 2021

197500 mi

US $230
Speed sensor fault, transmission sticking in 3rd gear. Replaced conductor plate and connector inside the transmission and cleared fault codes in transmission and ECU. 

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1998 Mercedes-Benz M-Class 4-door

6-cylinder automatic 4WD

Mercedes-Benz in Washington, United States
Jun 2017 - Jun 2018
Feb 2018

210000 mi

US $3500
Rack failed. Replace hoses, rack and flush. Oreilly supplied rack failed one week after installation. ZF rack from dealer installed second time. 
Mercedes-Benz in Georgia, United States
Jun 2018 - Jun 2018
Jun 2018

140000 mi

US $150
Replaced window switch group on center console. 

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See TrueDelta's information for all SUVs
See TrueDelta's information for all Mercedes-Benz models.

Mercedes-Benz M-Class Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Mercedes-Benz M-Class problems occur, check out our car reliability stats.