Checking/Topping Up Oil Level In Rear Differential
Removing And Installing/Replacing Rear Differential
Replacing Shaft Seal(s) For Output Shaft(s), Rear Axle Differential
Turning on/off and interrupting
cruise control - Active Cruise Control with
Stop&Go function ACC
Leak Testing With Ultraviolet Additives (UV Additives) (BMW
Leak-Testing Case)