Mercedes-Benz R-Class 2009 Owners Manual - Manual (Page 86)

Locking and unlocking
84
Vehicle equipment
i This Operator’s Manual describes all
features, standard or optional, potentially
available for your vehicle at the time of
purchase. Please be aware that your
vehicle might not be equipped with all
features described in this manual.
Locking and unlocking
Notes
G Observe Safety notes, see
page 66.
When unlocking the vehicle, all turn signal
lamps flash once, the locking knobs in the
doors move up, and the anti-theft alarm
system is disarmed.
When locking the vehicle, all turn signal lamps
flash three times, the locking knobs in the
doors move down, and the anti-theft alarm
system is armed.
All doors and the tailgate must be closed.
! If you cannot lock or unlock the vehicle
with the SmartKey, the batteries in the
SmartKey are discharged, the SmartKey is
malfunctioning, or the vehicle battery is
drained.
R Check the batteries in the SmartKey and
replace them if necessary.
R Use the mechanical key to unlock the
driver’s door.
R Use the mechanical key to lock the
vehicle.
R Have the vehicle battery and the vehicle
battery connections checked at an
authorized Mercedes-Benz Center.
If the SmartKey is malfunctioning, contact
Roadside Assistance or an authorized
Mercedes-Benz Center.
SmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and a
removable mechanical key.
The SmartKey centrally locks and unlocks:
R the doors
R the tailgate
R the fuel filler flap
Controls in detail