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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 · Suspension · clear filters

May 19, 2014Suspension

TL* THE CONTACT OWNS A 2012 MERCEDES BENZ SLK 350. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE CONTACT HEARD A LOUD POP FROM THE REAR OF THE VEHICLE. THE REAR OF THE VEHICLE SWERVED TO THE LEFT. THE VEHICLE WAS TAKEN TO THE DEALER, WHO STATED THAT BOTH CONTROL ARMS NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 28,000.

NHTSA ODI 10592439

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 →