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Controls in detail
Locking and unlocking
Checking the batteries
̈ Press button ‹ or Œ.
Battery check lamp 5 lights up briefly
to indicate that the key batteries are in
order.
Unlocking the trunk lid
You can unlock the trunk separately.
A minimum height clearance of 6.1 ft
(1.90 m) is required to open the trunk lid.
̈ Press and hold button Š until trunk
unlocks.
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 replace-
ment.
!
If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the SmartKey are dis-
charged or the key is malfunctioning.
ț Check the batteries in the key and
replace them if necessary
(
୴ page 299).
or
ț Use the mechanical key to unlock
the doors (
୴ page 297) and trunk
(
୴ page 298) as required. Lock the
vehicle using the mechanical key
(
୴ page 298).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!
If battery check lamp 5 does not light
up briefly during check, then the key
batteries are discharged.
Replace the batteries (
୴ page 299).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
!
The trunk lid swings open automatical-
ly. Always make sure that there is suffi-
cient overhead clearance.
i
If the vehicle was previously centrally
locked with the SmartKey, the trunk lid
will lock automatically after closing it.
The turn signals will flash three times to
confirm locking.
If the trunk was previously separately
locked (
୴ page 90), the trunk lid will re-
main locked.