2012 Mercedes-Benz ML350 Lane departure Problems
- Complaints
- 4about this part
- Share
- 6%of 65 total for the year
- Median mileage
- 79,950miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the lane departure of the 2012 Mercedes-Benz ML350, 6% of the 65 complaints for this model year. Where a mileage was given, the median is 79,950 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 occasion the blind spot assist becomes inoperative. Frequently when this occurs, it also deactivates the turn signals creating, in my opinion, a very dangerous situation. Each time it's happened in motion on an expressway. I've contacted the local mercedes benz dealer who tells me the only way to correct this problem is to pull over to the side of the road, turn off the car and turn it back on to reactivate the system. Not only is this inconvenient, it doesn't always correct the problem. I can live without the blind spot assist; however, not with inoperative turn signals. …”
NHTSA complaint #11064734, filed 2018-01, 76,900 miles“The turn signals stop working after driving the car for a few minutes. To get them to work again requires stopping the car, shutting off the engine and restarting it which in turn resets the computer. This effort does not permanently fix the issue and they usually quit working again within two to ten miles. This is the fifth complaint to the NHTSA with this issue and this particular model. This is a safety hazard which needs to be addressed by the manufacturer and fixed free of charge. This has been an ongoing issue for the past two to three years with this car. …”
NHTSA complaint #11402827, filed 2021-03, 83,000 miles“The driver's seat belt is locked and the retractor is not working without any reason. The front adaptive cruise control radar is also not working, along with the crucial blind spot sensor. Because of this, the vehicle cruise control (even without adaptive mode) is not working at all. This is a big safety issue and it is illegal to even drive this car without the seat belt working.”
NHTSA complaint #11629538, filed 2024-12“The following has been happening over the last 2 - 3 yrs. Also confirmed with other customers on MB world blog site. After traveling in the car for 5-15 minutes, and sooner if connected to cell phone via bluetooth, the indicators stop working. This leads to deactivation of the blind spot assist as well. The problem is temporarily resolved after switching the vehicle off and then on again, only to recur after driving it again for 10-15minutes, and earlier if attached to iPhone via Bluetooth. The blind spot assist is then permanently inactivated. …”
NHTSA complaint #11478166, filed 2022-08Related service bulletins
- 10167019Feb 25, 2014Blind Spot Assist inoperative.
Lane departure: other model years
Other parts of the 2012 Mercedes-Benz ML350
21 complaintsFuel system
16 complaintsElectrical system
11 complaintsExterior lighting
9 complaintsSteering
7 complaintsTransmission and drivetrain
6 complaintsBrakes
3 complaintsSeat belts
3 complaintsBody and structure
3 complaintsAir bags
2 complaintsEngine cooling
2 complaintsOther or unknown
2 complaints
← All problems reported for the 2012 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