See also:

Windows fogged up on the inside
Activate the cooling with air dehumidification function . Activate automatic mode . If the windows continue to fog up, activate the defrosting function. You should only select this setti ...

Problems with the SmartKey
Problem You cannot lock or unlock the vehicle using the SmartKey. Possible causes/consequences and Solutions The SmartKey battery is discharged or nearly discharged. Try again to lock/unlock th ...

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 ...