Electrical - Drivers lock does not lock/unlock with remote, with door lock. Have to physically lock/unlock drivers door. if you do not you will not get in door and you will not open from inside. If you do not lock manually your door will be open even though the other doors locked. Power Train - transmission is clucking between gear especially at slow speeds, Transmission in L1-5 sometimes does not shift up or down. sometimes does not go into drive from manually shifting from L gears. some downhills the tranny does not slow vehicle on down hills. Engine - valves and lifters are noisy at startup. Sounds like 1 or two cylinders. Suspension - Rear stock suspension bottoms easily also excessive motion up and down.

- Phoenix, AZ, USA

Car lurches forward during braking causing the car to shutter and buckle forward without control.issues occurs in all modes of drive, including eco, sport, sport+ and comfort. When approaching a stop the car jerks forward while brakes are applied. RPM's boost up without any motion on the gas pedal and subsequent motion on the brake. Car lunges forward causing whiplash and loss of control at speeds under 20 mph. Car has had this specific transmission issues since purchase in 9/2016 and dealership has dealt with this issue on the same make and model without avail. Car has been in for service since 11/2/2017 without any update, 30+ days in state of California (automatic lemon law applies). Car needs a software fix that hasn't been issued yet, and will not be issued until the earliest mid-January 2018. When first brought in for service (4 weeks after purchase) dealer stated the car was "breaking in", I had to tell the dealership that I wouldn't pay them for scheduled maintenance if they could not fix the transmission issue they kept the car and still have it.Mercedes North America - special reference to the West coast referral manager has been uncooperative in responding to requests for information and does not respond to any communications.

- Tarzana, CA, USA