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105
Controls in detail
Locking and unlocking
Restoring to factory setting
̈ Press and hold buttons Œ and ‹
simultaneously for about 6 seconds un-
til battery check lamp 5 flashes twice.
Checking the batteries
̈ Press button ‹ or Œ.
Battery check lamp 5 comes on
briefly to indicate that the SmartKey
with KEYLESS-GO batteries are in or-
der.
Global locking using the lock button on
the trunk lid
!
If you can no longer lock or unlock the
vehicle with the SmartKey with
KEYLESS-GO, then the batteries in the
SmartKey with KEYLESS-GO are dis-
charged, 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 105) and replace them if
necessary (
୴ page 435).
ț Use the mechanical key to unlock
the driver’s door (
୴ page 419) and
the trunk (
୴ page 420).
ț Use the mechanical key to lock the
driver’s door (
୴ page 420) and the
trunk (
୴ page 116).
ț Have the vehicle battery and the
battery connections checked
(
୴ page 453).
If the SmartKey with KEYLESS-GO is
malfunctioning, contact an authorized
Mercedes-Benz Center.
!
If battery check lamp 5 does not
come on briefly during check, then the
SmartKey with KEYLESS-GO batteries
are discharged.
Replace the batteries (
୴ page 435).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
i
If the batteries are checked within sig-
nal range of the vehicle, pressing
the ‹ or Œ button will lock or
unlock the vehicle accordingly.
i
To prevent a possible inadvertent
lockout, the trunk will open
automatically if a SmartKey with
KEYLESS-GO* is recognized inside the
vehicle or in the trunk.