AI Damage2006 Mercedes-Benz ML500: common problems
Owners of the 2006 Mercedes-Benz ML500 filed 37 complaints with NHTSA, most often about electrical system and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 37
- involving a crash
- 3
What fails most often
- 1 Electrical system 22% of all complaints
- 2 Powertrain 19% of all complaints
- 3 Service brakes 19% of all complaints
- 4 Steering 14% of all complaints
- 5 Air bags 11% of all complaints
- 6 Vehicle speed control 11% of all complaints
- 7 Seats 8% of all complaints
- 8 Exterior lighting 5% of all complaints
- Electrical system: 8 complaints (22% of all).
- Powertrain: 7 complaints (19% of all).
- Service brakes: 7 complaints (19% of all), 3 of them with a crash reported by the owner.
- Steering: 5 complaints (14% of all).
- Air bags: 4 complaints (11% of all).
Symptoms owners describe
How many of the 37 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 | 8 | 0 | 0 |
| Powertrain | 7 | 0 | 0 |
| Service brakes | 7 | 3 | 0 |
| Steering | 5 | 0 | 0 |
| Air bags | 4 | 0 | 0 |
| Vehicle speed control | 4 | 1 | 0 |
| Seats | 3 | 0 | 0 |
| Exterior lighting | 2 | 0 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Latches, locks, linkages | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Structure | 1 | 0 | 0 |
| Suspension | 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.
There were no warning lights illuminated. The driver-side air bag was deployed. The contact sustained bruises and injuries to her hands, knees, and shoulder, and medical attention was provided by her primary physician. There was no fire or police report filed. The vehicle was towed to a towing lot.
The contact stated that while the vehicle was parked, it rolled down the hill and crashed into a gate. The driver jump into the vehicle to depress the brake and sustained scratches and cuts. The road conditions were dry. The manufacturer inspected the vehicle and stated that the vehicle was normal.
The contact stated that when the vehicle was started, an unknown warning light illuminated. The vehicle was towed to the dealer where it was diagnosed with a failed electrical system due to water leaking into the rear taillight assembly. The contact was informed that the electrical system needed to be replaced.
The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. The contact stated that the vehicle lost motive power whenever the ignition was bumped. No warning light was illuminated.
When reviewing the vehicle for purchase I noticed the SRS light on. I brought it to the dealerships attention. They instructed me to bring it back in the morning after signing paperwork so they could fix it.
The ABS warning light was illuminated. The contact drove to his residence. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was contacted.
Car is extremely hard to turn/loss of power steering. Noticed that there was a recall on these vehicles but my vin was not included. Mechanic said Power steering rack is bad. This has been an ongoing issue with this car since purchased with only 70,000 miles - not sure why this VIN was not included in the recall?
The contact stated that while operating the vehicle, the SRS warning light would remain illuminated and a whining noise was present coming from the steering wheel. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure. The failure mileage was 140,000.
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 6,176 of 36,656 model years in the NHTSA data (top 17% most complained about).
On average one model year of the ML500 has 15 complaints (7 years in the data). This year has 37, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Other years of this model
Questions and answers
What are the most common problems with the 2006 Mercedes-Benz ML500?
Owner complaints to NHTSA most often mention: electrical system, powertrain, service brakes. Total complaints: 37. The most frequent symptoms in complaint texts: smoke, burning smell, fire (19%), warning lights, check engine (19%), steering or power steering problems (14%).
How many service bulletins (TSB) were issued for the 2006 Mercedes-Benz ML500?
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 ML500 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.