See also:

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 ...

Checking tire pressure electronically
Make sure that the SmartKey is in position 2 () in the ignition lock. Press the or button on the steering wheel to select the Service menu. Press the or button to select Tire Pres ...

Servicing the brakes
If the red brake warning lamp lights up in the instrument cluster and you hear a warning tone while the engine is running, the brake fluid level may be too low. Observe additional warning ...