Mercedes-Benz 2006 C 55 AMG Operator's Manual page 98

The SmartKey will then function as follows:
Unlocking driver's door and fuel filler
flap
Press button Πonce.
All turn signal lamps flash once.
An acoustic signal sounds once
(if equipped and feature activated).
The locking knob in the driver's
door moves up.
The anti-theft alarm system* is dis-
armed.
Global unlocking
Press button Πtwice.
All turn signal lamps flash once.
An acoustic signal sounds once
(if equipped and feature activated).
The locking knobs in the doors
move up.
The anti-theft alarm system* is dis-
armed.
Global locking
Press button ‹.
All turn signal lamps flash three
times.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
The locking 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 un-
til battery check lamp 5 ( page 94)
flashes twice.
The SmartKey is set to factory setting
again.
Controls in detail
Locking and unlocking
!
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.
Try second SmartKey.
Check the batteries in the
SmartKey ( page 98) and replace
them if necessary ( page 393).
Use the mechanical key to unlock
the driver's door ( page 386) and
the trunk ( page 387).
Use the mechanical key to lock the
driver's door ( page 387) and the
trunk ( page 103).
Have the vehicle battery and the
battery connections checked
( page 411).
If the SmartKey is malfunctioning,
contact an authorized Mercedes-Benz
Center.
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