2007 Mercedes Benz S550: sudden loss of power

Filed Mar 22, 2020 · Acceleration · 74,800 miles · AL

The contact stated that I purchased a used mercedes from bmw of mobile. While driving the car it loses power. I was on the interstate and it loss power. I almost had a panic attack because the car was slowing down. I had no idea what was going on. I had to make my way to the right lane to get off the road. The cars were driving 70 and 80 MPH. They could have rammed into the back of my car not knowing my car was slowing down. I could have been killed driving this defective vehicle!!! I informed bmw and their technician said it was the battery and a starter. I paid $600 for the repair. They were wrong the car still loses power. I had to beg and plead with them to have mercedes of mobile diagnose the car. They said they would pay for the diagnosis but not the repairs. If I traded the car back to them they would deduct the repairs from the car. The other options were to let it go back to the finance company or take it to another dealership and not tell them what going on with the car. They paid mercedes of mobile to diagnosis it and they immediately stated the issue. I went to bmw to ask for a refund and repair but they refuse to do any about the car losing power. Contacts also states that the mercedes would pay for diagnosis but not to repair. I would not recommend this dealership to anyone. They should have had this car checked out thoroughly at mercedes if they did not have the appropriate knowledge of the car. *ln

Filed Jan 25, 2017 · Engine · 70,000 miles · VA

Tl* the contact owns a 2007 mercedes-benz s550. While at a stop light, the vehicle shut down and lost all power. The vehicle restarted and was taken to a dealer who was unable to diagnose the failure. The failure recurred. The contact called the dealer and was advised to tow the vehicle to the shop. The dealer was unable to diagnose the failure, but kept the vehicle for further observation. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000. The VIN was not provided.

Filed Oct 22, 2015 · 73,000 miles · NC

While driving on a very populated interstate may car lost power and was stuck in one gear and I nearly got hit from behind by another vehicle. Mercedes told me that my conductor plate failed and this was the cause of my transmission slipping from one gear to a very low gear. In my opinion this is very dangerous for our roads and I think that they should be responsible and make this problem go away before someone or multiple people get hurt.

Filed Oct 21, 2015 · Acceleration, Electrical · CA

Vehicle becomes stuck in gear while driving down the road. Will not shift, sometimes you don't have enough power to move quickly. For example vehicle was stuck in 6th gear after leaving the highway. I could not accelerate to move the car. I had to shut the car off to reset the computer to get the car out of 6th gear. This has happened at least 10 times over the past 3 month period. Many other owners of this car have experienced the same transmission failure and that is very dangerous because the car lose power when it is stuck in a gear. The only way to fix the problem is to shut off the car and restart it. Mercedes benz should be held responsible for this issue.

Filed Sep 1, 2014 · Acceleration, Transmission · 68,400 miles · FL

Vehicle becomes stuck in gear while driving down the road. Will not shift, sometimes you don't have enough power to move quickly. For example vehicle was stuck in 6th gear after leaving the highway. I could not accelerate to move the car. I had to shut the car off to reset the computer to get the car out of 6th gear. This has happened at least 10 times over the past 3 month period. Many other owners of this car have experienced the same transmission failure and that is very dangerous because the car lose power when it is stuck in a gear. The only way to fix the problem is to shut off the car and restart it. Mercedes benz should be held responsible for this issue.