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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 98).
ț You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with the ‹ 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 the door to be
opened or the trunk lid.
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 All doors must be closed.
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 then 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)
!
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 107) and replace
them if necessary (
୴ page 425).
ț Use the mechanical key to unlock the driv-
er’s door (
୴ page 410) and the trunk
(
୴ page 411).
ț Use the mechanical key to lock the driver’s
door (
୴ page 411) and the trunk
(
୴ page 117).
ț Have the vehicle battery and the battery con-
nections checked (
୴ page 447).
If the SmartKey with KEYLESS-GO is malfunc-
tioning, contact an authorized Mercedes-Benz
Center.