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system, the vehicle cannot be locked
or the engine started via the KEY-
LESS-GO system.
If the SmartKey with KEYLESS-GO is re-
moved from the vehicle while the igni-
tion is switched on (e.g. if passenger
exits the vehicle with the key), the mes-
sage
will appear
Key not recognized!
in the multifunction display.
Find the key or change its present loca-
tion immediately (e.g. place it on the
front passenger seat or insert it in shirt
pocket).
Remember that the engine can be
started by anyone with a SmartKey
with KEYLESS-GO that is left inside the
vehicle. If you leave the card behind
when exiting and locking the vehicle,
the message
Key recognized in vehi-
will appear in the multifunction
cle!
display.
Factory setting
Global unlocking
Grasp the door handle.
The vehicle will lock again automatically
within approximately 40 seconds if neither
door nor trunk is opened.
i
The vehicle could be inadvertently un-
locked if the SmartKey with KEY-
LESS-GO is within 3 ft. (1 m) of the
vehicle and
the door handle is splashed with
water, or
you attempt to clean the door
handle.
Controls in detail
Locking and unlocking
Global locking
Press lock button at door handle
( page 53) or trunk lid ( page 92).
!
If you cannot lock or unlock the vehicle
with the SmartKey with KEYLESS-GO,
then either the batteries of the key are
discharged or the key is malfunction-
ing.
Check the batteries of the Smart-
Key with KEYLESS-GO ( page 88)
and replace them if necessary
( page 328).
Use the mechanical key to unlock
the driver's door ( page 327) and
trunk lid ( page 328) as required.
Lock the vehicle using the mechan-
ical key ( page 328).
If your SmartKey with KEYLESS-GO is
malfunctioning, contact your autho-
rized Mercedes-Benz Center.
91
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