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Controls in detail
Locking and unlocking
Global locking
̈ Press button ‹.
With the trunk and all doors closed, all
turn signal lamps flash three times. The
anti-theft alarm system is armed.
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressing Œ only unlocks the driver’s
door and the fuel filler flap.
̈ Press and hold buttons Œ and ‹
simultaneously for about 5 seconds un-
til battery check lamp 5 flashes twice.
The SmartKey will then function as
follows:
Unlocking driver’s door and fuel filler
flap
̈ Press button Œ once.
All turn signal lamps flash once. The
anti-theft alarm system is disarmed.
Global unlocking
̈ Press button Œ twice.
All turn signal lamps flash once. The
anti-theft alarm system is disarmed.
Global locking
̈ Press button ‹.
With the trunk and all doors closed, all
turn signal lamps flash three times. The
anti-theft alarm system is armed.
Restoring to factory setting
̈ Press and hold buttons Œ and ‹
simultaneously for about 6 seconds un-
til battery check lamp 5 (
୴ page 98)
flashes twice.
!
If you can no longer lock or unlock the vehi-
cle with the SmartKey, then either the batteries
in the SmartKey are discharged, the SmartKey is
malfunctioning or the vehicle battery is drained.
ț Check the batteries in the SmartKey
(
୴ page 101) and replace them if necessary
(୴ page 357).
ț Use the mechanical key to unlock the vehicle
(୴ page 355).
ț Have the vehicle battery and the battery con-
nections checked. Contact an authorized
Mercedes-Benz Center.
If the SmartKey is malfunctioning, contact Road-
side Assistance or an authorized Mercedes-Benz
Center.