2003 MERCEDES BENZ M CLASS User Comment / Complaint

I was pulling into a parking space (with my 3 small children strapped in the back), when i realized that the car was not stopping. i pressed the brake harder, the car accelerated, jumped the cement median, and hit a parked car. thank god no one was injured. i am sick thinking what could of happened. the car is 6 months old and has been back to the dealership twice for a problem i believe was the beginning of this, i.e., when i would step on the brake it would go to stall, buck forward and then be ok. the dealership was unable to find it or duplicate it. i have seen where other people are having this same problem. also for 2003 the model is ml 350 - mercedes. again they have not found a problem. they sent the manufacturer out to check the car and nothing. i have a police report that states the responding police officer and tow truck driver concur that the brakes were down to the floor board and not engaging.