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Controls in detail
Locking and unlocking
Checking the batteries
̈ Press button ‹ or Œ.
Battery check lamp 5 (
୴ page 106)
comes on briefly to indicate that the
SmartKey batteries are in order.
Unlocking and opening the tailgate
You can unlock and open the tailgate sep-
arately.
A minimum height clearance of 6.76 ft
(2.06 m) is required to open the tailgate.
̈ Press and hold button Š until tail-
gate unlocks and begins to open.
!
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 Check the batteries in the
SmartKey (
୴ page 117) and re-
place them if necessary
(
୴ page 429).
ț Use the mechanical key to unlock
the driver’s door (
୴ page 424).
ț Use the mechanical key to lock the
driver’s door (
୴ page 425).
ț Have the vehicle battery and the
battery connections checked.
If the SmartKey is malfunctioning, con-
tact an authorized Mercedes-Benz
Center.
i
If battery check lamp 5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
୴ page 429).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
i
If the batteries are checked within sig-
nal range of the vehicle, pressing the
button ‹ or Œ will lock or unlock
the vehicle accordingly.
!
The tailgate swings open upwards auto-
matically. Always make sure there is
sufficient overhead clearance.
Vehicles with tailgate opening/closing
system*: To stop the opening proce-
dure, press button Š on the
SmartKey. The tailgate stops moving.
i
If the vehicle was previously centrally
locked, the tailgate will lock automati-
cally when closed.
To confirm locking all turn signal lamps
flash three times.