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Controls in detail
Locking and unlocking
Factory setting
Global unlocking
̈ Press button Œ.
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.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of un-
locking if:
ț neither a door nor the trunk is opened
ț the SmartKey is not inserted in the
starter switch
ț the central locking switch is not acti-
vated
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.
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 (
୴ page 106)
flashes twice.
The SmartKey will then function as fol-
lows:
i
You can also open and close the power
windows and tilt/sliding sunroof* or
tilt/sliding panel* using the SmartKey
(
୴ page 234).
i
Your vehicle may be equipped with an
acoustic lock and unlock confirmation
signal feature. If your vehicle is
equipped with this feature and the fea-
ture is activated, an acoustic signal will
sound when the vehicle is locked or un-
locked using the SmartKey.
To determine whether or not your vehi-
cle is equipped with this feature, con-
tact an authorized Mercedes-Benz
Center. If equipped and you wish to ac-
tivate or deactivate the feature, or ad-
just its signal volume, also contact an
authorized Mercedes-Benz Center.