92
Controls in detail
Locking and unlocking
Restoring to factory setting
̈ Press and hold buttons Œ and ‹
simultaneously for about six seconds
until battery check lamp 5
(
୴ page 90) flashes twice.
Unlocking the trunk lid
You can unlock the trunk separately.
A minimum height clearance of
6.2 ft (1.88 m) is required to open the
trunk lid.
̈ Press and hold button Š until trunk
unlocks.
Checking the batteries
̈ Press button ‹ or Œ.
Battery check lamp 5 (
୴ page 90)
comes on briefly to indicate that the
SmartKey batteries are in order.
!
If you can no longer lock or unlock the
vehicle with the SmartKey, then the
batteries in the SmartKey are dis-
charged, the SmartKey is malfunction-
ing or the vehicle battery is drained.
ț Check the batteries in the
SmartKey (
୴ page 92) and replace
them if necessary (
୴ page 328).
ț Use the mechanical key to unlock
the doors (
୴ page 325).
ț Have the vehicle batteries and their
connections checked
(
୴ page 358).
ț Use the mechanical key to lock or
unlock the doors (
୴ page 327) .
If the SmartKey is malfunctioning, con-
tact an authorized Mercedes-Benz
Center.
i
If the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed. The turn signals will
flash three times to confirm locking.
!
If battery check lamp 5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
ț Replace the batteries (୴ page 328).
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.