AI Damage2006 Mercedes-Benz M Class: common problems
Owners of the 2006 Mercedes-Benz M Class filed 14 complaints with NHTSA, most often about engine and cooling and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 14
- involving a crash
- 1
What fails most often
- 1 Engine and cooling 29% of all complaints
- 2 Powertrain 29% of all complaints
- 3 Steering 21% of all complaints
- 4 Electrical system 14% of all complaints
- 5 Seats 7% of all complaints
- 6 Suspension 7% of all complaints
- 7 Vehicle speed control 7% of all complaints
- 8 Visibility 7% of all complaints
- Engine and cooling: 4 complaints (29% of all).
- Powertrain: 4 complaints (29% of all).
- Steering: 3 complaints (21% of all).
- Electrical system: 2 complaints (14% of all).
- Seats: 1 complaints (7% of all).
Symptoms owners describe
How many of the 14 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 4 | 0 | 0 |
| Powertrain | 4 | 0 | 0 |
| Steering | 3 | 0 | 0 |
| Electrical system | 2 | 0 | 0 |
| Seats | 1 | 0 | 0 |
| Suspension | 1 | 0 | 0 |
| Vehicle speed control | 1 | 1 | 0 |
| Visibility | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The vehicle lurched forward when her foot was first taken off the brake. On august 9, 2005 the consumer was pulling into the garage with her foot on the brake and the vehicle surged forward. She stated she could hear the motor surging.
The airmatic system began to fail. The front left strut quit working and had to be replaced. Since that time the right strut has failed and both rear airmatic springs have failed. All items had to be replaces at great cost. Now the airmatic compressor has failed and needs to be replaced.
I have same problem with my car and my model is not effected with this recall recall number: 05v224000 dates manufactured: jan 0001 to jan 0001 number of vehicles affected: 7191 date owners notified on: jan 0001 on certain passenger vehicles, a hose clamp that secures the power steering fluid cooling hose to the power…
When the seat heater was activated a burning smell filled the cabin. Some smoke came out of the lower, left side of the back of the driver's seat. The switch turned off on its own. There is a hole, approximately 3/4 in. In diameter on the seat.
Two problems - first, transmission do not switch higher than second speed. Upon engine restart, vehicle drove properly. Second, on another occasion, I was sitting at a traffic light and when I attempted to pull off, the vehicle started driving very slow and rough.
2006 ml350 transmission failure: while exiting from interstate, I notice that the car was jerking/knocking when I was slowing down. A couple of miles on the surface streets at 30-40 mph I noticed that the jerking became worse and finally the car went into neutral gear without any power delivered to the engine.
The steering pump was damaged by a leak. I previously brought the car in complaining there was a loud whirring noise. I was told the problem was resolved. Then this problem began again, I found there was a recall on the nhtsa website.
It is unknown to me if this engine will have other issues or not after fixing all those oil leaks. The second problem is the automatic transmission sometime suddenly down-shift at low speed. The service manager said this is fixed by reprogram the transmission computer/flash.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 9,551 of 36,656 model years in the NHTSA data (top 26% most complained about).
On average one model year of the M Class has 9 complaints (10 years in the data). This year has 14, above average.
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Other years of this model
Questions and answers
What are the most common problems with the 2006 Mercedes-Benz M Class?
Owner complaints to NHTSA most often mention: engine and cooling, powertrain, steering. Total complaints: 14. The most frequent symptoms in complaint texts: jerking, harsh shifts (21%), smoke, burning smell, fire (14%), stalls while driving (14%).
How many service bulletins (TSB) were issued for the 2006 Mercedes-Benz M Class?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2006 Mercedes-Benz M Class from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2006 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.