There are 1 owner-reported lighting complaints for the 2015 Mercedes-Benz S-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I am reporting the headlights on my vehicle which will go "Light Inoperative" while driving, yes. Yes, I could not see down the road on a dark highway I had to pull over to gain my senses and get to safety clear of oncoming traffic. Yes, the issue has been inspected by the dealership Mercedes as well as a third party shop to indicate moisture in the lights which causes a malfunction. Yes, my vehicle has been inspected before a few years ago when it was involved in a head on collision with a dog. Yes, the dashboard issues the warning immediately that their is failure in the lightning system.---------The lights have been replaced multiple times along with computer modules. Mercedes is aware of the issue and multiple owners are reporting the same issue.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026