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104
Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressing Œ only unlocks the driver’s
door, interior lockable storage compart-
ments and the fuel filler flap.
̈ Press and hold buttons Œ and
‹ simultaneously for about
6 seconds until battery check lamp 5
flashes twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel filler
flap
̈ Press button Œ once.
All turn signals flash once. The locking
knob in the driver’s door moves up.
The anti-theft alarm system is disarmed.
Global unlocking
̈ Press button Œ twice.
All turn signals flash once. The locking
knobs in the doors move up. The anti-theft
alarm system is disarmed.
Global locking
̈ Press button ‹.
All turn signals flash three times. The lock-
ing knobs in the doors move down.
The anti-theft alarm system is armed.
Restoring to factory setting
̈ Press and hold buttons Œ and ‹
simultaneously for about 6 seconds
until battery check lamp 5
(
୴ page 102) flashes twice.
!
If you can no longer lock or unlock the vehi-
cle with the SmartKey, then the batteries in the
SmartKey are discharged, the SmartKey is mal-
functioning or the vehicle battery is drained.
ț Check the batteries in the SmartKey
(
୴ page 105) and replace them if necessary
(
୴ page 395).
ț Use the mechanical key to unlock the driv-
er’s door (
୴ page 391) and the trunk
(
୴ page 117).
ț Have the vehicle batteries and their connec-
tions checked (
୴ page 414).
ț Use the mechanical key to lock or unlock the
doors (
୴ page 393).
If the SmartKey is malfunctioning, contact an
authorized Mercedes-Benz Center.