2015 Mercedes-Benz ML350 Electrical system Problems
- Complaints
- 4about this part
- Share
- 8%of 52 total for the year
- Median mileage
- 11,650miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2015 Mercedes-Benz ML350, 8% of the 52 complaints for this model year. Where a mileage was given, the median is 11,650 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.
“Pre safe functions limited message appeared on dashboard in nov '16. Over couple months, auditory beep warning of being too close to something happened with no hazard nearby approx 6 times. On 4/2/17, while driving 35 MPH on sunny day, auditory warning started (with no hazard nearby) then stopped when we stopped at traffic light. Beeping started again (with no hazard nearby) when we started driving, then car self-braked while driving at least 20 MPH and cars around us started honking. Started driving again and car self-braked again. …”
NHTSA complaint #10970652, filed 2017-04, 19,800 miles“In mid-trip as we were going down the highway went to change lanes and the turn signals were no longer functioning. No errors, no alerts, no warnings they just stopped working. After pulling over and turning off the vehicle and turning back on they work for a time then stop working again. After researching with other owners of these and similar model Mercedes Benz vehicles this is a prevalent and highly dangerous safety issue that many many others have experienced.”
NHTSA complaint #11711956, filed 2026-01“Front passenger door lock is registering as locked when it is actually insecure which is a safety issue. Thank you. Unknown start date. Recently purchased vehicle. This weekend passenger for the first time and discovered issue.”
NHTSA complaint #11457105, filed 2022-03Related service bulletins
- 11033185May 26, 2026Complaint 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…
- 11028834Feb 13, 2026Complaint Check engine light on with the following fault is current in the VGS Control Unit: P084300 Oil pressure sensor 'A' has a short circuit to positive stored in VGS control…
- 11020872Jul 16, 2025Complaint Commissioning not possible after replacement of TRANSMISSION 722.9 or of electrohydraulic controller unit (EHS) or of repair kit controller unit (VGS). Cause The wrong…
- 11018626May 22, 2025Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS - Service not activated" is displayed in the…
- 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…
- 11013086Jan 15, 2025Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The…
- 11010907Nov 25, 2024Complaint The flap of the reversing camera opens and closes by itself during forward travel. This happens several times during the trip. The customer notices the sound of opening…
- 11010755Nov 20, 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…
- 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…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2015 | 4 | 8% |
| 2014 | 20 | 29% |
| 2013 | 11 | 19% |
| 2012 | 11 | 17% |
| 2011 | 16 | 14% |
| 2010 | 10 | 10% |
| 2009 | 17 | 18% |
| 2008 | 13 | 19% |
| 2007 | 19 | 23% |
| 2006 | 29 | 17% |
| 2004 | 4 | 11% |
| 2003 | 4 | 16% |
Other parts of the 2015 Mercedes-Benz ML350
11 complaintsOther or unknown
9 complaintsFuel system
8 complaintsTransmission and drivetrain
7 complaintsBrakes
6 complaintsSteering
4 complaintsBody and structure
4 complaintsSuspension
4 complaintsAir bags
3 complaintsVehicle speed control
3 complaintsSeat belts
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaints
← All problems reported for the 2015 Mercedes-Benz ML350
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