Driving at 35 mph car began to stall and lose power, car eventually gained power and acceleration, once driving slower the car lost power again and cut completely off after all lights on dash board came on. Selling dealer stated they fixed the problem which was a sensor but the car is now losing power again one month later. The interior and exterior lighting always flicker upon starting the vehicle.

- Bellflower, CA, USA

While driving experienced sudden loss of power. Engine would rev normally but vehicle acted as if in neutral. I was able to move over to side of freeway safely. Placed car in park and then shifted back into drive, and car behaved normally. After doing research, I have discovered that this is a common problem with this model. According to, jayauto.wordpress.com, Mercedes is in a fight with its own suppliers because they produce a low-quality part. If you have problems with your 7-speed transmissions, please report it to: NHTSA. Only this organization can enforce Mercedes to do a transmission recall. In 2011, Mercedes made their biggest profit in their history. However, I don't think they will use it to fix their issues with transmission.

- Riverside , CA, USA