2011 Mercedes-Benz ML350 electrical system problems
16 owner complaints filed with NHTSA name the electrical system on the 2011 Mercedes-Benz ML350 — 15% of all complaints for this model year.
What owners report
“I believe the electrical system may be defective as ever since I have had it the light bulbs frequently have to be changed. We own three vehicles in my households (the other 2 are non-Mercedes) and none of my other vehicles do this. The latest issue with the electrical system is that the rear tail…”
filed Mar 11, 2025
“Rear brake light ground overheated and caused fire damaging wire harness and light assembly during driving. All tail lights affected.”
filed Mar 25, 2021
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument cluster. In addition, the following two…
LI82.85-P-080507 · Service Bulletin/Repair Instructions · issued May 26, 2026
Electrical System problems in other ML350 years
| Year | Reports | Share |
|---|---|---|
| 2015 ML350 | 4 | 8% |
| 2014 ML350 | 20 | 30% |
| 2013 ML350 | 11 | 20% |
| 2012 ML350 | 11 | 17% |
| 2010 ML350 | 10 | 10% |
| 2009 ML350 | 17 | 18% |
| 2008 ML350 | 13 | 19% |
| 2007 ML350 | 19 | 23% |
| 2006 ML350 | 29 | 17% |
| 2004 ML350 | 4 | 11% |
| 2003 ML350 | 4 | 16% |
Other reported problem areas on the 2011 Mercedes-Benz ML350
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.