2007 Mercedes-Benz M-Class Mercedes-Benz M-Class 2007

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2007 Mercedes-Benz M-Class repairs by problem area

Engine (39%)

Transmission and Drivetrain (6%)

Brakes and Traction Control (2%)

Suspension and Steering (19%)

Electrical and Air Conditioning (24%)

Paint, Rust, Leaks, Rattles, and Trim (4%)

Other (6%)

Chart based on 117 repairs.
See TSBs and recalls for the 2007 Mercedes-Benz M-Class.

2007 Mercedes-Benz M-Class repair cost distribution

$2500+ (8%)

$1000 - $2499 (14%)

$500 - $999 (16%)

$100 - $499 (25%)

< $100 (37%)

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

Chart based on 92 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

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 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 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 Texas, United States
May 2014 - May 2015
Mar 2015

119000 mi

US $1215
RR wheel hub replacement 
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 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 
Mercedes-Benz M-Class in Nova Scotia, Canada
Apr 2014 - Aug 2016
May 2014

88020 mi
Pollution 
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 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 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 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 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 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 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 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. 

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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 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 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 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 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
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 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 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 
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 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. 

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2007 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 2007 Mercedes-Benz M-Class problems occur, check out our car reliability stats.