AI Damage2001 Mercedes-Benz M Class: common problems
Owners of the 2001 Mercedes-Benz M Class filed 5 complaints with NHTSA, most often about electrical system and air bags. Details by component below, with sources.
Key figures
- Owner complaints
- 5
- involving a crash
- 2
What fails most often
- 1 Electrical system 40% of all complaints
- 2 Air bags 20% of all complaints
- 3 Engine and cooling 20% of all complaints
- 4 Equipment 20% of all complaints
- 5 Latches, locks, linkages 20% of all complaints
- 6 Steering 20% of all complaints
- 7 Structure 20% of all complaints
- Electrical system: 2 complaints (40% of all), 1 of them with a crash reported by the owner.
- Air bags: 1 complaints (20% of all), 1 of them with a crash reported by the owner.
- Engine and cooling: 1 complaints (20% of all).
- Equipment: 1 complaints (20% of all).
- Latches, locks, linkages: 1 complaints (20% of all), 1 of them with a crash reported by the owner.
Symptoms owners describe
How many of the 5 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) |
|---|---|---|---|
| Electrical system | 2 | 1 | 0 |
| Air bags | 1 | 1 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Equipment | 1 | 0 | 0 |
| Latches, locks, linkages | 1 | 1 | 0 |
| Steering | 1 | 0 | 0 |
| Structure | 1 | 0 | 0 |
| Other | 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.
I was hit on the passenger door side on 8/6/05 by a car running a red light. My car was hit so hard it rolled over resting on it's roof. No air bags deployed, not even side ones. I called mb-usa to complain. They didn't seem concerned about the event.
Just as reported in consumer reports, electrical systems failed on this vehicle causing all safety systems (ie., brake assist, safety belts, air bags) to fail. The problem caused two accidents last year when the 4,400 lb. Vehicle could not stop. Other electrical systems are also failing.
Tl contact owns a 2001 mercedes benz ml350. The steering wheel was repaired in 2003 according to nhtsa campaign id number 08v465000 (steering: hydraulic power assist: hose, piping, and connections); however, the steering was never corrected properly. The steering makes a loud noise when the steering wheel is turned.
Since the car was purchased it continues to hesitate and stall out giving a "start error" on the instrument panel. Had confirmed by the service manager, gerry griffith (car purchased in indianapolis, recent move to alabama), that the model m-class has problems with this issue.
I am assured they are doing all that they can but I have not gone 30 days in a row with a functioning, no problem, vehicle. I purchased a mb because I thought the value and dependability was there. I thought the vehicle would be hassle free and I could enjoy few mechanical issues.
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 14,282 of 36,656 model years in the NHTSA data (top 39% most complained about).
On average one model year of the M Class has 9 complaints (10 years in the data). This year has 5, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Latches, locks, linkages. Door, hood and tailgate latches, especially near the impact.
Other years of this model
Questions and answers
What are the most common problems with the 2001 Mercedes-Benz M Class?
Owner complaints to NHTSA most often mention: electrical system, air bags, engine and cooling. Total complaints: 5. The most frequent symptoms in complaint texts: hesitation when accelerating (20%), stalls while driving (20%).
How many service bulletins (TSB) were issued for the 2001 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 2001 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 2001 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.