RoadVitals

2012 Mercedes-Benz ML550 Owner Complaints

Reports submitted to NHTSA by owners and drivers, shown in full

Data refreshed

Complaints on fileComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
1
Latest Mar 15, 2023
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0
Filed in the last 12 monthsReports filed with NHTSA in the trailing 365 days. Recent volume reflects attention and vehicle age as much as anything else.
0
Reports on file since Mar 15, 2023

What this page shows

Our database holds 1 NHTSA owner-reported complaint for the 2012 Mercedes-Benz ML550. Each one is a report filed by an owner or driver and published by NHTSA without most of them being verified. A complaint is not a confirmed defect, not a recall and not a manufacturer bulletin. Narratives are shown exactly as filed.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Complaints, most recent first

Showing 1–1 of 1

Driver assistanceElectricalEngine
Filed Mar 15, 2023

In the last year, randomly, when starting the vehicle, the yellow check engine light comes on. Turn the vehicle off, it is gone. The side view mirrors have the yellow lights lit up on them when driving down any road, the red warning lights that tell you there's something behind or in front of you start going off for no reason while driving down any road, all the "safety" and lane assist features seem to have a ghost controlling them. The radio will also glitch out from time to time. It will swap through the channels or pull up list of channels when there is Nobody in the vehicle messing with it at all. Yesterday, I received the message that the backup assist was not working and another about lane assist not working. This morning, both messages are gone and things seem to be normal. This is very distracting! I've been on the highway, in the high speed lane and my alert is flashing and loudly sounding. It startled me, caused me to abruptly slow down and start looking all around; I was concerned someone was about to hit me or worse, I was about to hit something I couldn't see; it turns out there was nothing in front of, behind or around me at all. This needs to get resolved, asap. It appears to me to be a computer/electrical issue. It seems that there are many others complaining about very similar issues! Come on Mercedes-Benz, let's put out the recall already! The dealership just says "unless it's doing it while it's here, there's not much I can do". Of course it is never doing it then! Unreal!!!!

NHTSA ID
11511930
Incident
Mar 14, 2023

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Data sources

Data on this page last refreshed .