Hello, the hand brake on the right wheel is as good as not available. General (very)weak braking performance of the rear axle = engine on, My wife brakes like wild (AUPTBREMSE=right foot full through) and I can spin the wheels. What to do??? TÜV in 3 months. Please for tips –Have experience with exchange of various versions Disc + documents but still no contact with a drum brake system . . Greeting