There are 2 owner-reported speed control & cruise complaints for the 2006 Mercedes-Benz SLK-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
WHILE DRIVING ON A 50 MPH EXPRESSWAY, MY CAR SUDDENLY WENT INTO A LOW GEAR, REV'ING VERY HIGH. I HAD TO DECELERATE QUICKLY AND I WAS UNABLE TO SPEED UP TO KEEP UP WITH THE FLOW OF TRAFFIC. THE DEALER SAID A CONDUCTOR PLATE HAD TO BE REPLACED. BUT THIS IS A REAL SAFETY ISSUE.
TL*THE CONTACT OWNS A 2006 MERCEDES BENZ SLK250. WHEN ATTEMPTING TO APPROACH A COMPLETE STOP, THE VEHICLE ABNORMALLY ACCELERATED. THE CONTACT DEPRESSED THE BRAKE PEDAL AND HEARD A LOUD GRINDING NOISE. THERE WAS A SUDDEN INCREASE IN RPM'S AND THE VEHICLE CONTINUED TO ACCELERATE, WHICH CAUSED HIM TO CRASH. THERE WERE NO WARNING INDICATORS ILLUMINATED PRIOR TO THE FAILURE. THE CONTACT SUSTAINED SEVERE INJURIES FROM THE CRASH AND WAS TRANSPORTED TO THE HOSPITAL. THE VEHICLE WAS COMPLETELY DESTROYED. THE CAUSE OF THE FAILURE WAS UNKNOWN. HE HAS ACCESS TO OBTAINING A COPY OF THE POLICE REPORT AND PICTURES. THE MANUFACTURER DID NOT ASSIST. THE FAILURE AND CURRENT MILEAGES WERE 14,000. UPDATED 3/3/09 *CN UPDATED 03/04/09. *JB
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