Unlocking the driver's door (mechanical key)

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.

the SmartKey. Take the mechanical key out of the SmartKey.
lock of the driver's door as far as it will go. Insert the mechanical key into the lock of the driver's door as far as it will go.

Turn the mechanical key

counterclockwise to position 1. Turn the mechanical key counterclockwise to position 1.
The door is unlocked.
remove it. Turn the mechanical key back and remove it.
SmartKey. Insert the mechanical key into the SmartKey.

    See also:

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    General notes
    WARNING All categories of messages contain important information which should be taken note of and, where a malfunction is indicated, addressed as soon as possible at an authorized Mercedes- ...