2014 Mercedes-Benz M-Class Mercedes-Benz M-Class 2014

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2014 Mercedes-Benz M-Class repairs by problem area

Engine (42%)

Transmission and Drivetrain (0%)

Brakes and Traction Control (6%)

Suspension and Steering (3%)

Electrical and Air Conditioning (36%)

Paint, Rust, Leaks, Rattles, and Trim (9%)

Other (3%)

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Chart based on 33 repairs.
See TSBs and recalls for the 2014 Mercedes-Benz M-Class.

2014 Mercedes-Benz M-Class repair cost distribution

$2500+ (0%)

$1000 - $2499 (4%)

$500 - $999 (7%)

$100 - $499 (11%)

< $100 (79%)

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

Chart based on 28 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2014 Mercedes-Benz M-Class

Engine not specified

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.  

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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 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 
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 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. 

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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
Mar 2022 - Jun 2022
May 2022

14000 mi
Replaced blown strut. Rear wiper motor. 
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. 

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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 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 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 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 Maryland, United States
Nov 2014 - Dec 2014
Nov 2014

9000 mi

US $20
low coolant 
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.  
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 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, “car computer “ reset and updated. Prob worsened, took in again(3 rd time) , finally, spark plug 3 cylinders removed, found to be fouled , replaced. So far, ???? 

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2014 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 2014 Mercedes-Benz M-Class problems occur, check out our car reliability stats.