I was stopped at a stop sign when the vehicles RPM jumped to 4000, I quickly put the vehicle in "park". then turned the engine off and started the engine again. The RPM jumped to 4000 again. I turned the engine off and started it again. This happened twice within a week. Both times at a stop - once at a stop sign and once at a traffic signal. Took the vehicle into the Mercedes dealer but Mercedes service states there is nothing wrong with the vehicle. Almost exactly 1 year ago, my wife was in an accident because the vehicle "lunged" forward. She has not driven the vehicle since that incident and I've been driving this vehicle approximately 2 days a week for about a year. I hadn't understood her concern completely until it happened to me while I was driving the vehicle last week. There is a serious problem but Mercedes is saying there is nothing wrong with the vehicle.

- Los Angeles, CA, USA

I was backing my vehicle into a spot on a residential street and when I put the car in "drive" to pull forward, the car lunged forward. I slammed on my brakes and when the car kept on going, I pressed the parking brake and put the car in "park". the car ended up jumping the sidewalk and hitting the posts and garage of a house. I did not press the accelerator by mistake. I do have a witness who was on the sidewalk at the time who watched me during the ordeal.

- Los Angeles, CA, USA