Upon start, got a "reverse not possible" warning. Tried to drive home, but shifting was very erratic and car slowed dramatically between shifts. On several occasions, cars behind me had to swerve to avoid me. And, if I would have had to reverse out of danger, I would have been in serious trouble. After too many close calls, I stopped to arrange a tow. When I returned to the car to move it, the problem went away. I am afraid to put my family in this car.

- Groveland, CA, USA

I was driving to meet a friend for lunch. I came up upon a stop light that was already red and I would have been the third car in line. I came to what I thought was a stop. I was about a car length or more behind the car in front of me. Next thing I know, I hear a loud bang as my car had accelerated into the car in front of me with my foot on the brake. That car, in turn, hit the car in front of them. I was very confused. I received a traffic ticket for uncontrolled speed. The policeman thought I was I was crazy when I said that I had come to a stop. The car was drivable, so I still went to lunch with my friend. No problem whatsoever with parking or driving the car to the restaurant, which was about 1 mile away. After lunch, I then needed to run an errand before I went home. I drove about 2 blocks away from the restaurant and pulled into a shopping center. I then slowly pulled into a parking spot between two other cars. As my car hit the curb, it then went over the curb, onto the sidewalk and slammed into the concrete wall of one of the shops. I was able to get home, very shaken, and researched on the internet. Everything I found indicated it was sudden unintended acceleration (sua). I told my insurance company and also called Mercedes Benz usa. I had my car towed to the Mercedes collision repair shop. Mercedes did a recorded conversation and said not to have the car repaired and they would look at it. They were defensive when I mention sua, but my mat is velcroed on and it happened twice in one day. After the second collision, I saw a message on my dash that said : ?collision prevention assist plus inoperative". my airbags never deployed. I checked at the Mercedes collision center today and was told Mercedes removed a black recording box from my car. I have not heard anything back as of yet. I am afraid to drive this car even if it is repaired.

- Flower Mound, TX, USA

I have leased gla 250 Mercedes Benz while I was driving on the freeway, I felt the gas pedal stop working and the car stopped accelerating with sign of "collision prevention assist plus" on the carpool lane. I do not understand why this is happening even though there was no car in front of me. I have been a Mercedes Benz customer past 5 years and I never had this accident. I might have an accident if a car behind me did not stop its car. This is a definitely mechanical problem and I want Mercedes Benz to take a responsibility and solve this issue. Thank you.

- Montrose, CA, USA