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Convenience system central control unit
The ignition key is locked mechanically when the
key is inserted into the electronic ignition lock in
such a way that it can no longer be removed by the
driver.
The key is released as soon as the ignition is turned
off. This happens as follows: an electrical current is
applied to a lift magnet, releasing the ignition key.
The lift magnet is seated in the electronic ignition
lock, and is energised directly by the convenience
system central control unit J393.
Depending on gearbox type, there is one more con-
dition for release of the key:
In models with automatic gearbox:
the selector lever must be in the "P" position
In models with manual gearbox:
the vehicle must be stationary.
If the vehicle can is unable to energise the lift mag-
net of the ignition key removal lock due to a techni-
cal fault and if the key is currently inserted in the
ignition lock, the key will remain engaged in the
ignition lock. To be able to lock the vehicle despite
this, a mechanical emergency key with bit can be
removed from the ignition key.
The emergency key is integrated in the ignition key
and can be used for locking the central locking sys-
tem via the mechanical lock in the driver's door.
The ignition key removal lock
393_007
The mechanical emergency key can be used for opening the vehicle via the mechanical lock in the driver's
door if the vehicle cannot be opened by radio remote control. The same key is also used for deactivating the
front passenger airbag.
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