Keys, doors and windows 21
2. Reinsert the key blade
approximately 5 mm and rotate
the key blade to remove the back
cover, as shown.
Note:
Take care that no parts fall out.
3. Carefully lift the battery up using
a at tool.
4. Remove the battery.
5. Insert the new battery, positive
side toward the back cover.
6. Replace the back cover. Ensure
it clips in place securely.
7. Check key operation.
Electronic key synchronisation
The electronic key synchronises
itself automatically during every
starting procedure.
Electronic key system
Enables a keyless operation of the
following functions:
• Central Locking System 0 22
• Tailgate 0 27
• Starting the Engine 0 142
The electronic key simply needs to
be on the driver’s person.
Additionally the electronic key
includes the functionality of the
remote control 0
19.
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
infotainment 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.
Vehicle messages 0
75
Battery replacement 0 19
Electronic key synchronisation
The electronic key synchronises
itself automatically during every
starting procedure.
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