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Controls in detail
Locking and unlocking
The SmartKey will then function as follows:
Unlocking driver’s door and fuel filler
flap
̈ Press button Œ once.
ț All turn signal lamps flash once.
ț An acoustic signal sounds once
(if equipped and feature activated).
ț The locking knob in the driver’s
door moves up.
ț The anti-theft alarm system* is dis-
armed.
Global unlocking
̈ Press button Œ twice.
ț All turn signal lamps flash once.
ț An acoustic signal sounds once
(if equipped and feature activated).
ț The locking knobs in the doors
move up.
ț The anti-theft alarm system* is dis-
armed.
Global locking
̈ Press button ‹.
ț All turn signal lamps flash three
times.
ț An acoustic signal sounds three
times (if equipped and feature acti-
vated).
ț The locking knobs in the doors
move down.
ț 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 94)
flashes twice.
The SmartKey is set to factory setting
again.
!
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 Try second SmartKey.
ț Check the batteries in the
SmartKey (
୴ page 98) and replace
them if necessary (
୴ page 393).
ț Use the mechanical key to unlock
the driver’s door (
୴ page 386) and
the trunk (
୴ page 387).
ț Use the mechanical key to lock the
driver’s door (
୴ page 387) and the
trunk (
୴ page 103).
ț Have the vehicle battery and the
battery connections checked
(
୴ page 411).
If the SmartKey is malfunctioning,
contact an authorized Mercedes-Benz
Center.