See also:

System self-test
After you have switched on the ignition, the system carries out a self-diagnosis. WARNING A malfunction in the system has been detected if one of the following conditions occurs:  - ...

De-authorizing (de-registering) a Bluetooth® device
Mercedes-Benz USA, LLC recommends deauthorization in both COMAND and the Bluetooth® device, e.g. the mobile phone. Subsequent authorization may otherwise fail. In the Bluetooth® device list, se ...

Installing/removing the cargo compartment cover
To remove: make sure that cargo compartment cover 1 is rolled up. Press handle 2 on the right underside to the left. Remove cargo compartment cover 1. To install: attach cargo compartment c ...