| 1 | 0 | 3 | 4 | 3 | 4 |
2012 Mercedes-Benz C-Class repairs by problem area
Engine (35%)
Transmission and Drivetrain (13%)
Brakes and Traction Control (8%)
Suspension and Steering (5%)
Electrical and Air Conditioning (27%)
Paint, Rust, Leaks, Rattles, and Trim (10%)
Other (3%)
Chart based on 63 repairs.
2012 Mercedes-Benz C-Class engine repair cost distribution
$2500+ (0%)
$1000 - $2499 (20%)
$500 - $999 (5%)
$100 - $499 (5%)
< $100 (70%)
Chart based on 20 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
| 27940 mi $1200 |
Engine Mounts and Transmission Mount replaced. Wipers also replaced. I CANNOT BELIEVE I HAD TO CHANGE ENGINE MOUNTS AT 50K KMS! |
2012 Mercedes-Benz C-Class 4dr Sedan
turbocharged 201hp 1.8L I4 7-speed shiftable automatic RWD
| 25000 mi | Fuel pump failing resulting in occasional poor fuel delivery, rough acceleration and check engine light |
| 59700 mi | High pressure fuel pump failed and was replaced. |
| 51000 mi | repaired tension guide |
| 40000 mi | ECU software update |
| 21700 mi | I identified noise from the turbocharger. Dealer mechanic says it's normal. I'm not sure!!! |
| 7000 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. |
| 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. |
| 60500 mi US $2000 |
Engine malfunction |
| 63000 mi | Traded car because of engine problem that would have cost $3k to fix. |
2012 Mercedes-Benz C-Class 4dr Sedan
302-horsepower 3.5L V6 7-speed shiftable automatic RWD
| 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 |
2012 Mercedes-Benz C-Class 4dr Sedan
302-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 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. |
2012 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic AWD
| 32240 mi C $450 |
Pulley and belt replaced for a squeek. |
| 93000 mi US $120 |
Shaking of vehicle felt under passenger seat. Replaced transmission mount |
| 94000 mi US $20 |
Replaced Bolt on Engine to eliminate spoke |
| 138000 mi US $2000 |
Check engine light from vacuum lines |
| 28000 mi | air intake sensor |
| 8700 mi | Oil leak |
| 38000 mi | Squeezing fan belt, caused by previous repair when coolant leak caused. |
| 45500 mi | CEL came on. Left bank misfire |
2012 Mercedes-Benz C-Class 4dr Sedan
| 85560 mi C $1200 |
oil leak |
2012 Mercedes-Benz C-Class 2dr Coupe
302-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 20800 mi | Rattling noise after engine start for several seconds timing chain tensioner needed check valves put in. |
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