General notes

If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key.

If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-theft alarm system will be triggered.

There are several ways to turn off the alarm:

the SmartKey: press the or To turn the alarm off with the SmartKey: press the button on the SmartKey. or or button on the SmartKey.

or

ignition lock. Insert the SmartKey into the ignition lock.

or

KEYLESS-GO: To deactivate the alarm with KEYLESS-GO: press the Start/Stop button in the ignition lock. The SmartKey must be in the vehicle.

or

KEYLESS-GO. The SmartKey must be outside the Lock or unlock the vehicle using KEYLESS-GO. The SmartKey must be outside the vehicle.

If you unlock the vehicle using the mechanical key, the fuel filler flap will not be unlocked automatically.

flap: insert the SmartKey in the ignition lock. To unlock the fuel filler flap: insert the SmartKey in the ignition lock.

    See also:

    Safety systems
    Display messages Possible causes/consequences and Solutions Risk of accidentThe brake boosting effect is malfunctioning and the braking characteristics may be affec ...

    License plate lamps
    Switch off the lights. Open the tailgate. Press lug 2 of license plate lamp 1 in the direction of the arrow and remove license plate lamp lens 1. Remove license plate lamp lens 1. Repl ...

    Introduction
    You can establish a Bluetooth® connection to COMAND. WARNING A driver's attention to the road must always be his/her primary focus when driving. For your safety and the safety of others, we ...