| 1 | 0 | 3 | 4 | 3 | 4 |
2009 Mercedes-Benz M-Class repairs by problem area
Engine (36%)
Transmission and Drivetrain (1%)
Brakes and Traction Control (2%)
Suspension and Steering (15%)
Electrical and Air Conditioning (29%)
Paint, Rust, Leaks, Rattles, and Trim (5%)
Other (9%)
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 98 repairs.
2009 Mercedes-Benz M-Class electrical repair cost distribution
$2500+ (8%)
$1000 - $2499 (8%)
$500 - $999 (12%)
$100 - $499 (20%)
< $100 (52%)
Chart based on 25 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2009 Mercedes-Benz M-Class 4dr SUV
turbocharged 221hp 3.0L V6 Diesel 7-speed shiftable automatic AWD
| 86160 mi C $140 |
LED in rear tail light went out. a complete new assembly was the only answer |
2009 Mercedes-Benz M-Class 4dr SUV
turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD
| 30000 mi US $500 |
Blower motor had some issue |
| 99200 mi | Door lock replaced |
| 83700 mi | Door locks motors stopped working in 3 of the 4 doors |
| 81000 mi US $5384 |
Backup camera & module finally replaced after years of haggling. Intermittent outages usually when humid or rainy; eat. cost $2,400. Yes, you read that right. MBUSA and dealer paid as problem 1st appeared during warranty period. |
| 48000 mi US $480 |
TPMS system, two of the sensors went out, replaced all four |
2009 Mercedes-Benz M-Class 4dr SUV
503-horsepower 6.2L V8 7-speed shiftable automatic AWD
| 86000 mi US $200 |
battery wouldn't hold charge |
2009 Mercedes-Benz M-Class 4dr SUV
382-horsepower 5.5L V8 7-speed shiftable automatic AWD w/low range
| 43400 mi $2800 |
Rear turn light led Passanger and driver lock doors were not working. |
2009 Mercedes-Benz M-Class 4dr SUV
382-horsepower 5.5L V8 7-speed shiftable automatic AWD
| 45000 mi US $100 |
door lock not functioning |
| 81200 mi US $670 |
Rear right turnsignal LED array was burnt out. Part is integrated into taillight, requiring full tailight to be replaced |
| 80500 mi US $60 |
LCD screen started to develop lines and lose color, eventually become illegable. |
2009 Mercedes-Benz M-Class 4dr SUV
268-horsepower 3.5L V6 7-speed shiftable automatic RWD
| 114000 mi US $50 |
brake lights went several times in two months. Mercedes wants to sell you an expensive new unit. You need to find a mechanic who can clean the connection between socket and light. Mine got done for $50. |
2009 Mercedes-Benz M-Class 4dr SUV
268-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 69000 mi | AC temp senors needed replacing |
| 85000 mi | AC not working consistently |
| 100000 mi | Ac would stop working intermittently in very hot weather |
| 77500 mi | thermostat failed |
| 23000 mi | Auxillary battery replaced under warranty. We were alerted by a dash indicator. Mercedes also told us that the main, original battery would also need replacement soon, including resets, at a cost of $400 or so. |
| 32000 mi | One of the headlight bulbs went out. Dealer replaced it for free as a courtesy. |
| 35000 mi | CD deck won't eject discs, makes clicking noises for a few minutes on startup, needs replacement. New is expensive so getting a refurb from SoCal Mercedes, will replace myself. Radio works so no hurry. They replaced a headlight bulb for free |
| 37244 mi US $839 |
I installed a recon nav/audio but no way to unlock "anti-theft (AT) warning message." Neither dealer, Socal parts or YouTube told me to expect this. Dealer removes unit, obtains pin from their MB internal network, performs start-up to unlock AT, plus software update and coding! Pathetic. This cost $215. With headlight bulb, inspection, and "B service" total was $839. N/C to "renormalize" the operation of all windows since one of the rears was slow. |
| 38802 mi US $325 |
Warning light showed one of the stop light bulbs had failed. Dealer found contacts burnt, with the other side near failure. Installed "stop light socket updates" and two new bulbs. Labor was 235 and parts were 64. |
| 47291 mi US $1420 |
Battery dead, jumped vehicle to get to dealer, replaced battery; Blower motor replaced (it kept running, drain for fresh air intake box clogged malice Front parking lamp bulb replaced. |
| 42000 mi | DVD draining battery |
| 50000 mi | DVD was draining battery. Was not defective, just installed wrong when original DVD failed and was replaced by the dealer. |
| 53000 mi US $1400 |
Both lock actuators on front doors needed replacing |
See TrueDelta's information for all SUVs
See TrueDelta's information for all Mercedes-Benz models.
