Mercedes-benz Sl-class Engine Problems
68 owner complaints filed with NHTSA across 12 model years.
Complaints by Year
Worst year: 2003. Best year: 2020.
Owner Reports
A representative sample of complaints filed with NHTSA.
I do Own a Mercedes-Benz 2020 SL-550. On August 27, 2025, I was stopped at the curb adjacent to my house at [XXX] . When I gently tried to go right into driveway of my house, the tire hit the curb. When I gently again tried to release t...
TL* THE CONTACT OWNED A 2005 MERCEDES-BENZ SL500. AFTER PARKING THE VEHICLE, THE CONTACT HEARD A NOISE COMING FROM THE ENGINE COMPARTMENT AND FLAMES APPEARED. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. A POLICE REPORT WAS NOT FILED. THER...
TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ SL500. WHILE DRIVING INTO THE GARAGE, THE ABC PUMP WARNING INDICATOR ILLUMINATED AND THE CONTACT NOTICED SMOKE INSIDE THE VEHICLE. IN ADDITION, THE CONTACT NOTICED A LARGE AMOUNT OF HYDRAULIC FLU...
TL* THE CONTACT OWNS A 2003 MERCEDES BENZ SL500. THE CONTACT STATED THAT WHILE DRIVING 25 MPH, SHE SMELLED SMOKE COMING FROM THE ENGINE. THE CONTACT STATED THAT THE ABC AND STOP VEHICLE TOO LOW WARNING LIGHTS ILLUMINATED. THE CONTACT MEN...
ON JULY 10, 2015 DURING 5 PM TRAFFIC MY WIFE WAS MAKING A LEFT TURN FROM THE TURNING LANE INTO OUR COMPLEX WHERE WE LIVE, UPON MAKING HER LEFT TURN, SHE HAD TO CROSS TWO LANES OF TRAFFIC, BOTH LANES HAD STOPPED TO ALLOW HER THROUGH SAFE...
2003 MERCEDES BENZ SLK 320 EXPERIENCING PROBLEMS WITH HESITATION WHEN THE ACCELERATOR IS DEPRESSED.*MR ON ONE OCCASIONS WHEN THE CONSUMER ATTEMPTED TO APPLY THE GAS THE VEHICLE DID NOT MOVE FOR A FEW SECONDS AND THEN ALL OF A SUDDEN TH...
The contact leased a 2022 Mercedes-Benz AMG SL55. The contact stated while driving approximately 55 MPH, the vehicle unintendedly decelerated and stalled. There was no warning light illuminated. After restarting the vehicle, the vehicle ...
The contact owns a 2007 Mercedes-Benz SL55. The contact stated that while driving at an undisclosed speed, the message "Service Active Body Control" was displayed on the instrument panel. In addition, the contact stated that prior to rec...
The electrical systems drains the two batteries after the car sits idle for a few hours. If it can be started, many of the safety features are inoperable until the car is driven for 30 or 40 minutes. I've had it to multiple Mercedes deal...
I was driving on a country road when all of a sudden my car lost power all the warning lights camo on the dashboard. Smoke started billowing out from the back and front of the car. It turned off and I only coasted about a 100 feet. I cou...
When driven on the highway, speed drops abruptly down (65 mph to 40 mph) stuck on 4 or 3rd gear in this automatic 9 speed transmission and gear won't shift up causing engine rpm rise over 3000 & gas pedal won't have effect even it was p...
Initially got a transmission malfunction warning and to turn car off. The cars battery keeps dying at only 1500 miles. Constantly needs to be on trickle charger. Recently the car died, charged battery. Car turned over for 3 seconds then ...