If central locking cannot be activated with the remote control key - e.g. if the batteries are discharged - then the left-hand front door is unlocked as follows:
Unlock the left-hand front door with the key blade in the door handle's lock cylinder. For illustration and more information, see Keyless Drive - unlocking with the key blade .
When the door has been unlocked using the key blade and is opened, the alarm is triggered.
Deactivate the alarm by inserting the remote control key in the ignition switch.
For cars with keyless start and lock system, see Keyless Drive - unlocking with the key blade .