20 Keys, doors and windows
Battery replacement, in Radio remote
control 3 17.
Electronic key synchronisation
The electronic key synchronises itself
automatically during every starting
procedure.
Fault
If the central locking cannot be
operated or the propulsion system
cannot be started, the cause may be
one of the following:
● Fault in electronic key.
● Electronic key is out of reception
range.
● The battery voltage is too low.
● Overload of the central locking
system by operating at frequent
intervals, the power supply is
interrupted for a short time.
● Interference from higher-power
radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 20.
Memorised settings
Whenever the vehicle is switched off,
the following settings are
automatically memorised by the
electronic key:
● automatic climate control
● lighting
● Infotainment system
● central locking system
● comfort settings
The saved settings are automatically
used the next time the vehicle is
switched on with the memorised
electronic key 3 19.
A precondition is that Personalisation
by driver is activated in the personal
settings of the Info display. This must
be set for each electronic key which is
used. The status change is available
only after locking and unlocking the
vehicle.
Vehicle personalisation 3 92.
Central locking system
Unlocks and locks doors, load
compartment and charge port door.
A pull on an interior door handle
unlocks the respective door. Pulling
the handle once more opens the door.
Note
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Note
A short time after unlocking with the
remote control the doors are locked
automatically if no door has been
opened. A precondition is that the
setting is activated in the vehicle
personalisation 3 92.
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