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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
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 and hold button Š until trunk
unlocks and begins to open.
The trunk can also be opened from its
inside in an emergency, see “Trunk emer-
gency release” (
୴ page 118).
Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:
̈ Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.
̈ Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.
̈ If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a
replacement.
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 409).
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 au-
tomatically. Always make sure there is
sufficient overhead clearance.
Vehicles with trunk opening/closing
system*: To stop the opening proce-
dure, press button Š. The trunk lid
stops moving.
i
If the trunk does not open, it is still
locked separately (
୴ page 119).