See also:

Program selector button
General information The program selector button allows you to choose between different driving characteristics. Program selector button on all models except AMG vehicles For further infor ...

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 trigg ...

Important notes on the use of KEYLESSGO
- The KEYLESS-GO key can be used like a conventional key. - You can combine KEYLESS-GO functions with those of a conventional key, e.g. unlock with KEYLESS-GO and lock with the & button. ...