Mercedes Benz ML550 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
22 owner complaints analyzed
3 distinct recall campaigns
92,500 mi median reported failure mileage
Scope: 2008 to 2009 model years. Data snapshot: . 8 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Electrical System is the most frequently named component, appearing in 5 of 22 complaints (22.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 4 | 18.2% |
| Steering behavior | 4 | 18.2% |
| Electrical and battery issues | 2 | 9.1% |
| Engine operation | 1 | 4.5% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 5 |
| Steering | 4 |
| Air Bags | 3 |
| Service Brakes, Hydraulic | 3 |
| Seat Belts | 2 |
| Tires | 2 |
| Unknown Or Other | 2 |
| Back Over Prevention: Rearview System Braking | 1 |
Electrical System: 5; Steering: 4; Air Bags: 3; Service Brakes, Hydraulic: 3; Seat Belts: 2; Tires: 2; Unknown Or Other: 2; Back Over Prevention: Rearview System Braking: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 2 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 3 |
| 150,000 and above | 1 |
Under 25,000: 2; 25,000 to 49,999: 0; 50,000 to 74,999: 1; 75,000 to 99,999: 1; 100,000 to 149,999: 3; 150,000 and above: 1
100,000 to 149,999 miles has the most reports with usable mileage (3). 14 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2012 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
2012: 1; 2014: 1; 2015: 1; 2016: 2; 2017: 3; 2020: 1; 2021: 4; 2022: 5; 2023: 2; 2024: 1; 2025: 1
Pattern summary
Electrical System leads the component reports. Braking behavior appears in 4 complaint narratives. Steering behavior appears in 4 complaint narratives. Electrical and battery issues appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11466726 · 2022-05-31 (May 31, 2022)
The contact owns a 2008 Mercedes-Benz ML550. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. An unknown local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
Owner-reported narrative. Look up ODI 11466726 at NHTSA ↗
Owner report 11500853 · 2023-01-09 (January 9, 2023)
The contact owns a 2008 Mercedes-Benz ML550. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
Owner-reported narrative. Look up ODI 11500853 at NHTSA ↗
Owner report 10453355 · 2012-03-28 (March 28, 2012)
ON TWO OCCASION WHILE THE VEHICLE WAS IN TRAFFIC/OPERATIONTHE ENGINE STALLED ON TURNING THE CAR. ENGINE HAD TO BE RESTARTED IN ORDER TO UNBLOCK THE STEERING WHEEL AND RESTART THE ENGINE. THIS IS A CERTIFIED VEHICLE AND MERCEDES BENZ CLAIMED THE INCIDENT -A DID NEVER HAPPEN AND B-COULD NOT BE DUPLICATED.
Owner-reported narrative. 51,355 miles reported. Look up ODI 10453355 at NHTSA ↗
Owner report 10748023 · 2015-08-12 (August 12, 2015)
TL* THE CONTACT OWNS A 2008 MERCEDES BENZ ML550. WHILE DRIVING APPROXIMATELY 5 MPH, THE STEERING WHEEL BECAME DIFFICULT TO TURN AND FORCE WAS APPLIED. THE FAILURE RECURRED WHENEVER THE VEHICLE WAS IN OPERATION. THE VEHICLE WAS DIAGNOSED HOWEVER, NOT REPAIRED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 08V682000 (STEERING). THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNAVAILABLE.
Owner-reported narrative. Look up ODI 10748023 at NHTSA ↗
Owner report 11432654 · 2021-09-12 (September 12, 2021)
My NHTSA #11431874 I have made a complaint about my back computer was damage by water where the is installed on the right side of my car now I found out that the reason my chairs are not moving is because the electrical is also damage this is so unfair the problem is not my car but the ways and place they installed the computer??
Owner-reported narrative. Look up ODI 11432654 at NHTSA ↗
Owner report 11475982 · 2022-07-26 (July 26, 2022)
In mid February/early March the brakes failed while the vehicle was moving in a parking lot. After exiting the vehicle with the emergency brake on, I found a pool of brake fluid under the car. After towing it home, I had to make the decision to leave the car sitting as I did not have the financial resources to take it to an authorized mechanic as I had lost my job in January. In May learned of the recall and called the number, only to be told that I have to wait for a letter in the mail and to do nothing until I receive a letter. After roughly …
Owner-reported narrative. Look up ODI 11475982 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2008 | 2 |
| 2009 | 3 |
2008: 2; 2009: 3