2006 MERCEDES-BENZ G500 Owner's Manual

328 Practical hints
Unlocking/locking in an emergency
Press lock cylinder2 and pull on tail-
gate handle3.
Open the tailgate to the side.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey, lock it with the mechanical key
as follows:
Close the passenger door, the rear
doors and the tailgate.
Press the central locking switch in the
center console (
page 99).
Check to see whether the locking
knobs on the doors have moved down.
If necessary, push them down manual-
ly.
Slide the mechanical key2 out of the
SmartKey.
Lock the driver’s door with the me-
chanical key.
Check if the tailgate is locked. If neces-
sary lock the tailgate with the mechan-
ical key.
Fuel filler flap
The emergency release is in the cargo
compartment behind the rear panel trim.
1Edge protection
2Rear panel trim
Open the tailgate.
Remove edge protection1 from the
door pillar.
Remove rear panel trim2.
Warning!G
The tailgate swings open to one side. Always
make sure there is sufficient clearance for
tailgate.
i
Unlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press button Œ or ‹ on the
SmartKey.

Insert the SmartKey in the starter
switch.


329 Practical hints
Unlocking/locking in an emergency
3Release strap
Pull strap 3 upwards.
The fuel filler flap is unlocked and can
be opened. Manually unlocking the transmission
gear selector lever
In case of power failure the transmission
gear selector lever can be manually un-
locked, e.g. to tow the vehicle.
1Pin
Insert a pin1, e.g. ball point pen, into
the covered opening.
Perform the following two steps simul-
taneously:
Push pin1 down.
Move gear selector lever from
positionP.
Remove pin1.
The cover returns to its closed position af-
ter moving the gear selector lever to posi-
tions D+ and D-.
i
The gear selector lever is locked again
when moving it to positionP.

330 Practical hints
Opening/closing in an emergency
Tilt/sliding sunroof
You can open or close the tilt/sliding sun-
roof manually in case of power failure.
The tilt/sliding sunroof drive is located on
the left side (driver’s side) of the cargo
compartment behind the rear panel trim.
1Edge protection
2Rear panel trim
Take the vehicle tool kit out from its
storage compartment (
page 323).
Open the tailgate.
Remove edge protection1 from door
pillar.
Remove rear panel trim2.
3Key (vehicle tool kit)
4Screwdriver (vehicle tool kit)
Fit key3 into hexagon nut of drive.
Insert screwdriver4 into the key as a
lever.
Turn screwdriver4 clockwise to:

slide sunroof closed

raise sunroof at the rear
Turn screwdriver4 counterclockwise
to:

slide sunroof open

lower sunroof at the rear
i
Do not disconnect electrical connec-
tors.

331 Practical hints
Brush guard*
Brush guard*
Warning!G
The brush guard is designed solely to en-
hance the appearance of the vehicle and
help protect grille and headlights from minor
mishaps, either on- or off-road. Since the
safety characteristics are limited in the
event of an accident, brush guards are not
intended to prevent injury or damage in the
event of an accident. Also check state and
local regulations on installation and use.
Raise and lower brush guard in an open
space with plenty of room.
To help prevent personal injury when open-
ing or closing the brush guard, use extreme
caution not to trap hands or feet.
The brush guard must be in raised and
locked position while driving.
i
Only lower brush guard to clean head
lamps or to replace bulbs.

332 Practical hints
Brush guard*
Lowering and raising brush guard
1Locking and unlocking handle
2Quick lock
3Lock
4End stop jointLowering
While holding brush guard firmly, open
quick lock2 using locking and unlock-
ing handle1.
Gently lower brush guard until it
reaches its fully lowered position.Raising and securing
Flip up brush guard until it contacts end
stop joint4.
Quick lock stop pin2 must engage
the cross slot recess in lock3.
Now turn quick lock2 so that quick
lock makes contact with end stop
joint4.
Lock quick lock2 on both sides of
brush guard using locking and unlock-
ing handle1.
!
Make sure both quick stop pins2 are
seated fully in lock3.

333 Practical hints
Replacing SmartKey batteries
Replacing SmartKey batteries
If the batteries in the SmartKey are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Light Truck Center.Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
Warning!G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
i
When inserting the batteries, make
sure they are clean and free of lint.
i
When replacing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz Light
Truck Center.

334 Practical hints
Replacing SmartKey batteries
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove mechanical key (page 327).
1Mechanical key
2Slide
3Battery compartment
Insert mechanical key1 in direction
of arrow in side opening.
Using mechanical key1, push gray
slide2 to unlatch battery
compartment3.
Pull battery compartment3 out of the
housing in direction of arrow.
Remove the discharged batteries in di-
rection of arrow.
4Battery
5Contact spring
Using a lint-free cloth, insert new
batteries4 under contact spring5
with the positive terminal (+) facing up.
Return battery compartment2 into
the housing until it locks into place.
Slide mechanical key1 back into the
SmartKey.
Check the operation of the SmartKey.

335 Practical hints
Replacing bulbs
Replacing bulbs
Safe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See an authorized
Mercedes-Benz Light Truck Center for
headlamp adjustment. i
If the headlamps or front fog lamps are
fogged up on the inside as a result of
high humidity, driving the vehicle a dis-
tance with the lights on should clear up
the fogging.
i
Backup bulbs will be brought into use
when lamps malfunction. Observe the
messages in the multifunction display
(
page 298).