2008 Mercedes-Benz ML550 Electrical system Problems
- Complaints
- 5about this part
- Share
- 28%of 18 total for the year
- Median mileage
- 25,695miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the electrical system of the 2008 Mercedes-Benz ML550, 28% of the 18 complaints for this model year. Where a mileage was given, the median is 25,695 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #10453355, filed 2012-03, 51,355 miles“This vehicle has major problem with rear sam and seat no power. Ever since this ml was made 10 car I had was bought sam and no power to the seat front”
NHTSA complaint #11402808, filed 2021-03, 35 miles“The back computer seat on the top of the was supposed to be draining out of the car instead the water retrain in the cause damage to my the computer I complained about it but never got a solution until the water damage the and saw for the first time where was the water on back of my car this was careless why put computer on the top of water that caused the damage and problem for my car?”
NHTSA complaint #11431874, filed 2021-09Related service bulletins
- 11015640Mar 5, 2025Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party…
- 11008091Sep 28, 2024Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party…
- 10166088Jul 12, 2014Noises from the mounting of the rear weight sensing system (WSS) sensors
- 10165850Jul 8, 2014Side windows may make noises when closing and opening, or reverse direction when closing.
- 10167007Feb 25, 2014Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.
- 10167006Feb 12, 2014Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.
- 10167040Feb 1, 2014This Service Campaign has been initiated because Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that the mbrace software does not correspond to…
- 10205233Aug 5, 2013Mobile phone cotacts are not transferred completely.
- 10167564Jul 12, 2013Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement.
- 10167563Jul 8, 2013The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2011 | 1 | 17% |
| 2008 | 5 | 28% |
Other parts of the 2008 Mercedes-Benz ML550
4 complaintsAir bags
2 complaintsBrakes
2 complaintsOther or unknown
2 complaintsSeat belts
2 complaintsBack-over prevention (rear camera)
1 complaintsEngine
1 complaintsEngine cooling
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsSuspension
1 complaintsTires
1 complaints
← All problems reported for the 2008 Mercedes-Benz ML550
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology