Four problems related to power train have been reported for the 2007 Mercedes Benz S550. The most recently reported issues are listed below.
The contact owns a 2007 mercedes-benz S550. While driving approximately 1 to 6 mph, the transmission gears made a thumping sound without warning. The issue recurred numerous times. The dealer diagnosed that the transmission had to be replaced. The vehicle was taken to a transmission specialist where it was diagnosed that the valve body needed to be replaced. The manufacturer was notified. The vehicle was not repaired. The approximate failure mileage was 76,000.
Tl-the contact owns a 2007 Mercedes Benz S550. The contact stated that while driving 45 mph, the vehicle began to loose power and suddenly stalled without warning. The vehicle was taken to a dealer where it was diagnosed that the conductor plate and vibe body failed and needed to be replaced. The vehicle was repaired but the failure recurred at 100,000 miles. The manufacturer was not notified of the failure. The failure mileage was approximately 67,000. Ec.
I was driving my S550 and came to a red light. I stopped at the light and when it turned green, I took my foot off the brakes and pressed the accelerator, but there was to response to pressing the accelerator. The car rpms were increasing but the vehicle was crawling at less than 5mph. This led to me pulling over and parking the vehicle and turning it off. I waited 5 minutes and then restarted it and it began to work normally. The second time this happened was while making a left turn, I pressed the gas pedal and there was no response and the car was reving but traveling less than 5 mph with oncoming traffic having to stop short to prevent crashing into me while I was making the left turn. This was again resolved with me parking the vehicle, turning it off and then restarting it. After the second time this occurred out of no where I decided its a very dangerous safety issue.
Tl - the contact owns a 2007 mercedes-benz S550. The contact stated that while driving 30 mph, the vehicle failed to accelerate without warning. The contact merged to the shoulder of the road and restarted the vehicle where it functioned normally. The vehicle was taken to a private mechanic where it was diagnosed that the transmission valve body with electrical plates needed to be replaced. The manufacturer was notified of the failure. The vehicle was repaired. The approximate failure mileage was 160,000 and the current mileage was 190,000. Dr.