Mechanical key

General notes

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

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

There are several ways to turn off the alarm:

► To turn the alarm off with the
SmartKey: press the on the SmartKey. button on the SmartKey.
or
► Insert the SmartKey into the ignition lock.
or
► To deactivate the alarm with KEYLESSGO:

press the Start/Stop button in the ignition lock. The SmartKey must be in the vehicle.
or
► Lock or unlock the vehicle using KEYLESSGO.

The SmartKey must be outside the vehicle.

Removing the mechanical key

► Push release catch 1 in the direction

► Push release catch 1 in the direction of the arrow and at the same time, remove mechanical key 2 from the SmartKey.

    See also:

    Checking the battery
    •► Press the or button. The battery is working properly if battery check lamp 1 lights up briefly If battery check lamp 1 does not light up briefly during the test, the battery is ...

    Preparing the vehicle
    Your vehicle may be equipped with a "Minispare" emergency spare wheel or MOExtended tires (tires with run-flat properties). Vehicle preparation is not necessary on vehicles with MOEx ...

    Tips for driving with DISTRONIC PLUS
    Important safety notes The following contains descriptions of certain road and traffic conditions in which you must be particularly attentive. In such situations, brake if necessary. DISTRONIC ...