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Controls in detail
Locking and unlocking
Checking the batteries
̈ Press button ‹ or Œ.
Battery check lamp 5 comes on
briefly to indicate that the SmartKey
batteries are in order.
Unlocking and opening the trunk lid
You can unlock and open the trunk
separately.
A minimum height clearance of 5.71 ft
(1.74 m) is required to open the trunk lid.
̈ Press button Š until trunk unlocks
and begins to open.
The trunk can also be opened from its
inside in an emergency, see “Trunk lid
emergency release” (
୴ page 88).
!
If you can no longer lock or unlock the
vehicle with the SmartKey, then either
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 84) and replace
them if necessary (
୴ page 307).
or
ț Use the mechanical key to unlock
the doors (
୴ page 305) and the
trunk lid (
୴ page 306) as required.
or
ț Use the mechanical key to lock the
doors (
୴ page 306) and the trunk
lid (
୴ page 306) as required.
or
ț Have the vehicle battery and the
battery connections checked.
If the SmartKey is malfunctioning,
contact an authorized Mercedes-Benz
Center.
!
If battery check lamp 5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
୴ page 307).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
i
If the batteries are checked within
signal range of the vehicle, pressing
the ‹ or Œ button will lock or
unlock the vehicle accordingly.
!
The trunk lid swings open upwards
automatically. Always make sure there
is sufficient overhead clearance.