As I was driving down the highway I pressed on gas pedal and vehicle made a very loud chain whine noise and it cut off in the middle of highway and never started back up.

- Menlo Park, CA, USA

I don't know.

- Bronx, NY, USA

2006 Mercedes Benz R 350, check engine light illuminated under normal driving conditions at approx 66,000 miles; possible balance shaft wear indications; mb dealer cleared cel and performed test drive without it reappearing; cel illuminated again within 50 miles; subsequent visit to mb dealer confirmed early wear on balance shaft gear and timing chain; Mercedes Benz knows that the materials used were insufficiently hardened, causing premature wear and possible sudden loss of power resulting in no power steering or power brakes without warning, thereby presenting a danger to vehicle occupants; safety recall is in order for vehicle owners with similar engine types

- La Plata, MD, USA

2006 Mercedes Benz R350 problem with faulty transmission * the vehicle rolled backwards out of the driveway and struck a parked car. The consumer was told by the dealer, the reason why the vehicle rolled, was because he left the keys in the ignition. The consumer stated a button must be pushed to place in to park. It was determined that the consumer didn't place the vehicle into park. It was stated that if the key is left in the ignition, and not placed into park, the vehicle will not go into park by itself. The conclusion was user error. The consumer believed there is a manufacturer's defect with the transmission. The consumer did not have a police report.

- Linden, NJ, USA