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Controls in detail
Locking and unlocking
Checking the batteries
̈ Press button ‹ or Œ.
Battery check lamp 4 lights up briefly
to indicate that the key batteries are in
order.
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 or
the vehicle battery is drained.
ț Check the batteries in the key and
replace them if necessary
(
୴ page 276).
or
ț Check the vehicle battery
(
୴ page 294).
or
ț Use the mechanical key to unlock
the doors (
୴ page 274) as required.
Lock the vehicle using the mechan-
ical key (
୴ page 275).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!
If battery check lamp 4 does not light
up briefly during check, then the key
batteries are discharged.
Replace the batteries (
୴ page 276).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.