2012 Mercedes-Benz C-Class Mercedes-Benz C-Class 2012

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2012 Mercedes-Benz C-Class repairs by problem area

Engine (35%)

Transmission and Drivetrain (14%)

Brakes and Traction Control (7%)

Suspension and Steering (5%)

Electrical and Air Conditioning (25%)

Paint, Rust, Leaks, Rattles, and Trim (11%)

Other (4%)

Chart based on 57 repairs.
See TSBs and recalls for the 2012 Mercedes-Benz C-Class.

2012 Mercedes-Benz C-Class repair cost distribution

$2500+ (0%)

$1000 - $2499 (8%)

$500 - $999 (5%)

$100 - $499 (15%)

< $100 (72%)

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

Chart based on 39 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2012 Mercedes-Benz C-Class

Engine not specified

Mercedes-Benz C-Class in Trinidad and Tobago
Dec 2013 - Jun 2015
Jan 2015

$1200
Engine Mounts and Transmission Mount replaced. Wipers also replaced. I CANNOT BELIEVE I HAD TO CHANGE ENGINE MOUNTS AT 50K KMS! 

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2012 Mercedes-Benz C-Class 4dr Sedan

turbocharged 201hp 1.8L I4 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in California, United States
Jul 2015 - Nov 2016
Aug 2015

59700 mi
High pressure fuel pump failed and was replaced. 
Mercedes-Benz C-Class in Texas, United States
Oct 2012 - Jul 2013
Dec 2012

18000 mi
Hood latch was misaligned and right front part of hood moved about one-half inch up and down... distorted speaker 
Mercedes-Benz C-Class in California, United States
Sep 2014 - Jun 2018
Mar 2015

24000 mi
Left headlight lens developed a hazy section within the plastic outer cover. 
Mercedes-Benz C-Class in California, United States
Dec 2011 - Jul 2015
Jun 2013

30000 mi
Passenger side front window started to make a noise when rolling down. Dealer found something "sticky" had gotten onto it and cleaned it off and it works. 
Dec 2014

59000 mi

US $250
Battery replaced. 
Mar 2015

60000 mi

US $800
Cam shaft adjusters needed to be replaced. Car was out of warranty, but dealer and/or MBUSA didn't charge for parts, only labor. 
Apr 2015

60500 mi

US $2000
Engine malfunction 
Jul 2015

63000 mi
Traded car because of engine problem that would have cost $3k to fix. 
Mercedes-Benz C-Class in Georgia, United States
Jun 2013 - Jun 2017
Oct 2013

11000 mi
Third battery in keyless fob entry. Plan to replace battery every six months. 
Mercedes-Benz C-Class in Georgia, United States
Aug 2013 - Nov 2016
Oct 2013

21700 mi
I identified noise from the turbocharger. Dealer mechanic says it's normal. I'm not sure!!! 
Mercedes-Benz C-Class in California, United States
Dec 2011 - Nov 2012
Oct 2012

25000 mi
Fuel pump failing resulting in occasional poor fuel delivery, rough acceleration and check engine light 
Mercedes-Benz C-Class in Texas, United States
Jan 2016 - Jun 2018
Dec 2017

73000 mi
Driver headrest broke and was flopping. Took it apart and secured some plastic pieces that had broken with screws. Very poor design. 
Mercedes-Benz C-Class in California, United States
Jul 2015 - Nov 2016
Feb 2016

51000 mi
repaired tension guide 
Mercedes-Benz C-Class in California, United States
Feb 2012 - Feb 2014
Feb 2014

7200 mi
Check engine warning light came on and vehicle could only ran 40mph max. System reset itself after 1 day not driving. Diagnosed with low fuel pressure, possibly sensor switch malfunction. Dealer only uploaded vehicle with new updated software. Check Engine light stays on and car would not go above 40 mph. I was so disappointed for Mercedes Benz brand. Car only has 7200 miles. Will post you update after the trip to dealer. 
Mercedes-Benz C-Class in Florida, United States
Jul 2013 - Oct 2014
Oct 2014

40000 mi
ECU software update 

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2012 Mercedes-Benz C-Class 4dr Sedan

481-horsepower 6.2L V8 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in California, United States
May 2012 - Jun 2018
Jul 2014

9000 mi
Battery was not maintaining maximum charges. 
Oct 2017

17000 mi

US $600
One brake pad sensor replaced Battery replaced 

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2012 Mercedes-Benz C-Class 4dr Sedan

451-horsepower 6.2L V8 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in California, United States
Dec 2011 - Sep 2018
Apr 2015

8000 mi
Radar unit for blind spot detection fell off, was hanging from a wire behind exhausts. Bracket holding unit was missing, had to be ordered. Was installed and problem resolved. 

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2012 Mercedes-Benz C-Class 4dr Sedan

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

Mercedes-Benz C-Class in Texas, United States
Dec 2015 - Apr 2017
Aug 2016

54000 mi

US $331
Hold function stopped working shortly after each start. Diagnosis was a failing battery. Replaced battery and hold function operated normally again. 
Mercedes-Benz C-Class in California, United States
Jun 2016 - Jun 2018
Jul 2016

43000 mi

US $1000
The prefuse block was faulty, and vehicle would not start. 
Mercedes-Benz C-Class in Illinois, United States
Mar 2014 - Apr 2018
Feb 2015

37400 mi
Bluetooth address book adding multiple entries 
Jun 2016

55000 mi

US $100
Brake caliper was stuck on one pin and caused the right front rotor to get a groove on the back. Replaced both front rotors. 
Mercedes-Benz C-Class in Texas, United States
Apr 2012 - Jun 2016
Jun 2013

10000 mi
Engine noise on cold start; sounds like rattling, as if valve clatter. Stops after engine runs for about 30-60 seconds. Diagnosed by Dealer/Regional staff; TSB, metal fatigue, wrist pins; required removing engine and replacing all 6 pistons/rods 

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2012 Mercedes-Benz C-Class 4dr Sedan

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

Mercedes-Benz C-Class in Ontario, Canada
Feb 2012 - Jun 2018
Mar 2015

29760 mi
M276 engine TSB for timing chain secondary pulley causing rattle on startup. TSB calls for anti-drain valve to be installed in each oil supply orifice serving the pulley. 
Oct 2015

34300 mi
Vertical trim piece beside windshield on drivers side developed a bubbling of the finish at the top end. Apparently its a plastic film, not paint. Dealer replaced with new piece. Waited for the car, took about 2 hours. 

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2012 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic AWD

Mercedes-Benz C-Class in Ontario, Canada
Apr 2017 - May 2017
Jan 2017

27900 mi
New front suspension due to noise 
May 2017

29760 mi
Noise from parking brake cable. Anti vibration noise clips installed 
Mercedes-Benz C-Class in New York, United States
Jul 2012 - Aug 2015
Mar 2015

28000 mi
air intake sensor 
Mercedes-Benz C-Class in Ontario, Canada
May 2012 - Jun 2018
Oct 2017

32240 mi

C $450
Pulley and belt replaced for a squeek. 
Mercedes-Benz C-Class in Illinois, United States
Feb 2017 - Jun 2018
Jan 2018

14000 mi
Dead battery, recharged 
Mercedes-Benz C-Class in Colorado, United States
Dec 2011 - Apr 2017
Feb 2014

19300 mi
Driver seat belt plastic pieces broke where buckle snaps into it and receptacle had to be replace. 
Mar 2014

20000 mi
Driver seat belt receiver plastic outer pieces split in half. Replaced by dealership and had to wait a week on parts. Locking part still worked, just hard to align and snap together. 
Mercedes-Benz C-Class in Arizona, United States
Feb 2017 - Jun 2018
Mar 2018

93000 mi

US $120
Shaking of vehicle felt under passenger seat. Replaced transmission mount 
Jun 2018

94000 mi

US $20
Replaced Bolt on Engine to eliminate spoke 
Mercedes-Benz C-Class in Pennsylvania, United States
Dec 2011 - May 2015
Apr 2015

45500 mi
CEL came on. Left bank misfire 
Mercedes-Benz C-Class in New York, United States
Aug 2014 - Jun 2018
Dec 2015

35000 mi
clunk when you put the car in reverse or turn wheel tight. 
Aug 2017

54000 mi

US $400
replaced front struts 
Mercedes-Benz C-Class in New York, United States
Apr 2012 - Jun 2018
Oct 2013

8700 mi
Oil leak 
Oct 2014

16200 mi
Rear transmission seals leaking 
Aug 2015

18100 mi
Rear differential seals leaking 
Apr 2016

21300 mi
Rear differential leak. This will be the third time the car has Ben in for this issue 
Mercedes-Benz C-Class in Ohio, United States
Oct 2015 - Jan 2016
Oct 2015

38000 mi
Squeezing fan belt, caused by previous repair when coolant leak caused. 
Mercedes-Benz C-Class in Pennsylvania, United States
Sep 2014 - Jun 2018
Oct 2015

24000 mi
Nav screen would shut down automatically on occasion 
Mercedes-Benz C-Class in Massachusetts, United States
May 2015 - Mar 2016
Aug 2015

22900 mi
wire to one of the running lights was loose 
Mercedes-Benz C-Class in New Jersey, United States
Jan 2017 - Jun 2018
Mar 2018

114000 mi

US $34
Bulb burned out needed to be replaced. Took more than ten minutes. 
May 2018

130000 mi
Bad caliper. 

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2012 Mercedes-Benz C-Class 4dr Sedan

Mercedes-Benz C-Class in British Columbia, Canada
Jun 2017 - Jun 2018
Jul 2017

60760 mi

C $250
Battery condition - failed load test. 

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2012 Mercedes-Benz C-Class 4-door

turbocharged 4-cylinder diesel automatic AWD

Mercedes-Benz C-Class in Sweden
Sep 2012 - Jun 2013
Nov 2012

12060 mi
Rough gearshifts between 2-3. 
Dec 2012

13640 mi
Rough gearshifts between 2-3. 
Jun 2013

19840 mi
Rough shifting between 2nd and 3rd gear. 

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2012 Mercedes-Benz C-Class 2dr Coupe

turbocharged 201hp 1.8L I4 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in Chile
Jul 2013 - Jan 2015
Nov 2013

20460 mi
Front right motor hood closing damper broke. Changed for free, out of warranty. Likely broken by careless mechanic during previous work on the car. 

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2012 Mercedes-Benz C-Class 2dr Coupe

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

Mercedes-Benz C-Class in Virginia, United States
Jan 2014 - Jun 2018
Apr 2014

20800 mi
Rattling noise after engine start for several seconds timing chain tensioner needed check valves put in. 
Feb 2015

30400 mi
Wheel Bearing after pot hole 

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2012 Mercedes-Benz C-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 2012 Mercedes-Benz C-Class problems occur, check out our car reliability stats.