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Controls in detail
Locking and unlocking
Important notes on using KEYLESS-GO
ț You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(
୴ page 110).
ț You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with button ‹).
ț Always carry the SmartKey with
KEYLESS-GO with you.
ț Never store the SmartKey with
KEYLESS-GO together with:
ț Electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO
ț Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.
ț To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within ap-
proximately 3 ft (1 m) of a door or the
tailgate.
ț In order to start the engine with the
SmartKey with KEYLESS-GO:
ț The SmartKey with KEYLESS-GO
must be located in the vehicle.
ț The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.
ț If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle cannot be locked or the
engine started via the KEYLESS-GO
system.
ț If the SmartKey with KEYLESS-GO is re-
moved from the vehicle (e.g. if passen-
ger exits the vehicle with the SmartKey
with KEYLESS-GO)
ț when pressing the KEYLESS-GO
start/stop button or trying to lock
the vehicle with the outside door
handle the message
Key not rec-
ognized
appears in the multifunc-
tion display
!
If you can no longer lock or unlock the vehi-
cle with the SmartKey with KEYLESS-GO, then
the batteries in the SmartKey with KEYLESS-GO
are discharged, the SmartKey with KEYLESS-GO
is malfunctioning or the vehicle battery is
drained.
ț Check the batteries in the SmartKey with
KEYLESS-GO (
୴ page 119) and replace
them if necessary (
୴ page 440).
ț Use the mechanical key to unlock the driv-
er’s door (
୴ page 435).
ț Use the mechanical key to lock the driver’s
door.
ț Have the vehicle battery checked by an au-
thorized Mercedes-Benz Center.
If the SmartKey with KEYLESS-GO is malfunc-
tioning, contact an authorized Mercedes-Benz
Center.