Home · 2012 Mercedes-benz Slk-class · Complaints

What 11 owners told NHTSA about the 2012 Mercedes-benz Slk-class

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (11)Crash / fire / injury (1)Fuel system (3)Airbags (1)Electrical system (1)Engine (1)Seats (1)Steering (1)Suspension (1)Transmission & drivetrain (1)Wheels (1)

1 of 11 complaints match · Seats · clear filters

Sep 23, 2021Seats

The contact owns a 2012 Mercedes-Benz SLK350. The contact stated while driving approximately 45 MPH, the front passenger’s side headrest erroneously deployed. During the failure no crash had occurred, and no passenger was seated in the vehicle. The cause of the failure was not determined. The local dealer was notified of the failure but not assistance was offered. The manufacturer was not yet contacted. The failure mileage was 48,000.

NHTSA ODI 11433988

Working with the data? Download all 11 complaints as CSV · fetched from NHTSA July 26, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2012 Mercedes-benz Slk-class verdict →