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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, interior storage compartments and
the fuel filler flap.
̈ Press and hold buttons Œ and ‹
simultaneously for about 6 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.
Unlocking and opening the trunk
You can unlock the trunk separately.
A minimum height clearance of
5.5 ft (1.66 m) is required to open the
trunk lid.
̈ Press and hold button Š until the
trunk lid unlocks and opens slightly.
Checking the batteries
̈ Press button ‹ or Œ.
Battery check lamp 5 (
୴ page 98)
comes on briefly to indicate that the
SmartKey batteries are in order.
i
If battery check lamp 5 does not come on
briefly during check, then the SmartKey
batteries are discharged.
Replace the batteries (
୴ page 359).
You can obtain the required batteries at any
authorized Mercedes-Benz Center.
i
If the batteries are checked within signal
range of the vehicle, pressing button ‹
or Πwill lock or unlock the vehicle
accordingly.