2004 MERCEDES-BENZ G500 synchronize

95 Controls in detail
Seats
Removing and installing front seat head restraints
For more information on head restraint ad-
justment, see the “Getting started” section
(page 36).
Front seat head restraints
1Switch
Removing front seat head restraint

Press switch1 upwards and hold until
the head restraint is fully extended.

Pull head restraint out.Installing front seat head restraint

Press switch1 upwards and hold for
about five seconds.

Press the head restraint down until it
engages.

Adjust head restraint to the desired po-
sition.
Synchronizing head restraints and seat
adjustment fore and aft for front seats
If the power supply was interrupted (bat-
tery disconnected or discharged), the head
restraints and the seat adjustment fore
and aft are no longer adjusted automatical-
ly.
The head restraints and the seat adjust-
ment fore and aft must be resynchronized:
Turn SmartKey in starter switch to
position2.

Move the seat completely forward
(page 35) and the head restraint fully
down (
page 36) and hold the switch-
es for approximately one second.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the head re-
straint supports the back of the head at eye
level. This will reduce the potential for injury
to the head and neck in the event of an ac-
cident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Do not interchange head restraints from
front and rear seat.
iTilt the seat backrest rearward for eas-
ier removal and installation of the head
restraints.

257 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
v
The yellow ESP warning lamp
comes on and remains on while
driving.
You engaged the differential locks. The ABS,
ESP, BAS, EBB and 4-ETS are switched off.

The driving systems will switch on
again after the differential locks have
been disengaged.

Also note the messages in the multi-
function display (
page 260).
The ESP is deactivated.
Risk of accident! Adapt your speed and driv-
ing to the prevailing road conditions.

Turn the ESP back on (
page 81).
If the ESP cannot be turned back on, have
the system checked at an authorized
Mercedes-Benz Light Truck Center as
soon as possible.
The ESP is deactivated because of interrupt-
ed power supply. The ABS may still be opera-
tional. The ESP has to be synchronized.

Note the messages in the multifunc-
tion display (
page 260).
The ESP, ABS, BAS, EBB or 4-ETS has detect-
ed a malfunction. All driving systems are
switched off.
Risk of accident! Adapt your speed and driv-
ing to the prevailing road conditions.

Note the messages in the multifunc-
tion display (
page 260).

263 Practical hints
What to do if …
Display
Display message
Possible cause
Possible solution
ESP
ESP
NOT AVAILABLE
The charging voltage has fallen below
10 volts and the ESP has switched off.

When the voltage is above this value
again, the ESP is operational again.

If necessary, have the generator (alter-
nator) and battery checked.
The ESP is deactivated because of a mal-
function or interrupted power supply. The
ABS and BAS might not be operational.
The system must be resynchronized.

Synchronize the ESP. With vehicle sta-
tionary and the engine running, turn
the steering wheel completely to the
left and then to the right to synchro-
nize the ESP.
If the ESP message does not go out:

Continue driving with added caution.

Visit an authorized Mercedes-Benz
Light Truck Center as soon as possi-
ble.
Failure to follow these instructions in-
creases the risk of accident.
!When synchronizing the ESP, make
sure you can turn the steering wheel in
both directions as far as it will go with-
out the wheels hitting any objects, e.g.
a road curb.

312 Practical hintsBatteryDisconnecting the battery
Turn off all electrical consumers.

Disconnect the battery negative lead.

Remove the cover from the positive ter-
minal.

Disconnect the battery positive lead.

Remove the breather hose from the
battery.
Reconnecting the battery
Turn off all electrical consumers.

Connect the positive lead and fasten its
cover.

Connect the negative lead.

Install the breather hose.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the SmartKey is in the starter switch.
Otherwise the alternator and other
electronic components could be se-
verely damaged.
iWith a disconnected battery

you will no longer be able to turn
the SmartKey in the starter switch


the gear selector lever will remain
locked in positionP
!Never invert the terminal connections.!The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
iThe following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnec-
tion):

Set the clock (see COMAND opera-
tor’s manual).


Resynchronize the front seat head
restraints and seat adjustment fore,
aft (
page 95).


Synchronize the ESP (
page 263).