| 1 | 0 | 3 | 4 | 3 | 4 |
2012 Mercedes-Benz M-Class repairs by problem area
Engine (30%)
Transmission and Drivetrain (6%)
Brakes and Traction Control (1%)
Suspension and Steering (12%)
Electrical and Air Conditioning (23%)
Paint, Rust, Leaks, Rattles, and Trim (20%)
Other (7%)
Select a problem area
- Engine
- Transmission and Drivetrain
- Brakes and Traction Control
- Suspension and Steering
- Electrical and Air Conditioning
- Paint, Rust, Leaks, Rattles, and Trim
- Other
Chart based on 69 repairs.
2012 Mercedes-Benz M-Class electrical repair cost distribution
$2500+ (0%)
$1000 - $2499 (13%)
$500 - $999 (13%)
$100 - $499 (20%)
< $100 (53%)
Chart based on 15 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2012 Mercedes-Benz M-Class 4dr SUV
turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD
| 99000 mi US $400 |
Battery replacement in addition to a standard B3 service |
| 26040 mi | The 2 lighted M-B sign on passenger and driver floor |
| Total COMMAND system failure. Service technician indicated replacement component would have cost approx $5000 if out of warranty. | |
| 17400 mi | Tailgate actuator failed |
| 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). |
2012 Mercedes-Benz M-Class 4dr SUV
302-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 39600 mi US $450 |
Transmission and locks were acting up. A new battery solved the issues. |
| 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. |
| 37000 mi | Rear Window switch not working. Dealer replaced switch. |
| 28800 mi | Back up camera lens scratched needed to be replaced |
| 15000 mi | Power tailgate would not go up intermittently and get stuck. |
| 13000 mi | Replaced washer pump motor |
| 17000 mi | Had no turn indicators and no blind spot assist. They replaced the steering wheel module. |
| 28000 mi | A/C had a bad smell when started. They needed to install drain plugs so water does not accumulate in the vents. |
| 73000 mi US $604 |
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. |
| 133000 mi US $700 |
Another attempt to remove bad smell from A/C, still not completely successful $90.00 |
| 233000 mi US $1875 |
The original alternator failed after 233,000 miles. Replaced alternator |
See TrueDelta's information for all SUVs
See TrueDelta's information for all Mercedes-Benz models.
