22
Keys, doors and windows
Fault
If the central locking system cannot
be operated with the radio remote
control, the cause may be one of the
following:
■ Fault in radio remote control
■ Range exceeded
■ Battery voltage too low
■ Frequent, repeated operation of the
radio remote control while not in
range, which will require re-
synchronisation
■ 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
Manual unlocking 3 23.
Electronic key system
Enables a keyless operation of the
following functions:
■ Central locking system 3 23
■ Tailgate 3 29
■ Ignition switching on and starting
the engine 3 151
The electronic key simply needs to be
on the driver's person.
Additionally the electronic key
includes the functionality of the radio
remote control 3 21.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Note
Do not put the electronic key in the
load compartment or in front of the
Info-Display.
Replacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly
or the range is reduced. The need for
battery replacement is indicated by a
message in the Driver Information
Centre 3 116.
Battery replacement, see radio
remote control 3 21.
Electronic key synchronisation
The electronic key synchronises itself
automatically during every starting
procedure.