See also:

Fuse box in the engine compartment
Make sure that the windshield wipers are turned off. WARNING Make sure that the windshield wipers are switched off and that the SmartKey is removed from the ignition lock before you open ...

Safety notes
WARNING COMAND is classified as a Class 1 laser product. You must not open the casing. If you open the casing, or if the casing is faulty or damaged, there is a risk of exposure to invisibl ...

Controlling the rear-compartment climate control automatically using the front control panel
Turn the SmartKey to position 2 in the ignition lock. Activate the rear compartment function via COMAND. Rear-compartment climate control can be controlled via the front control panel using ...