2011 Mercedes-Benz ML550 Electrical system Problems
- Complaints
- 1about this part
- Share
- 17%of 6 total for the year
- Median mileage
- 8,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the electrical system of the 2011 Mercedes-Benz ML550, 17% of the 6 complaints for this model year. Where a mileage was given, the median is 8,000 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.
“Yesterday, I was driving our 2011 mercedes ML550 on a california highway, and suddenly lost my brake lights, turn signal lights and reverse lights, due to a rodent eating the wiring of the car. This is the second time this year a rodent has eaten the wiring of this car. 4 months ago a rodent ate the main wiring loom and the repair cost $1000. We have owned 5 different mercedes benz models over the last 7 years. The wiring for each of these cars has been eaten by rodents more than once and caused us thousands of dollars worth of damage (obviously not covered under warranty). …”
NHTSA complaint #10416657, filed 2011-08, 8,000 milesRelated 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…
- 11013305Jan 24, 2025Complaint Windows of the front doors poorly adjusted/sluggish Cause The settings of the front windows may be set incorrectly Remedy Adjustment of the windows or window guides as…
- 11008880Oct 3, 2024Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the…
- 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…
- 11006658Aug 10, 2024Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE…
- 11008064Aug 9, 2024In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you that on certain Model Year 2011-2018 C-Class, E-Class…
- 10248173Dec 11, 2023Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (âÂÂMYâÂÂ) 2009-2012 GL-Class, ML-Class, R-Class, and…
- 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.
- 10056472Jun 20, 2014Xentry (mercedes): after engine has started, several issues occurs, an acoustic warning sounds is heard, the instrument cluster displays warning message power steering…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2011 | 1 | 17% |
| 2008 | 5 | 28% |
Other parts of the 2011 Mercedes-Benz ML550
2 complaintsBrakes
1 complaintsExterior lighting
1 complaintsSteering
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2011 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