I'm having the same problems and so far brought my car in almost 7 times. When I get to a stoplight or stop sign, my rpm drops, car shakes and even jerks at times. It seems like this problem occurred after they changed the fuel lines in my car. I have repeatedly told them about this issue and still no solution what so ever. It has become very frustrating! It's sad that the dealership response was,"sorry we cannot find anything wrong, we're just gonna have to wait til the car pretty much???" They said they kept everything documented but to think that this is a luxury car and I have to drive it and take the risk of it shutting down on me is kind of ridiculous!
