2005 MERCEDES-BENZ G500 key

352 Practical hintsBatteryHave the battery removed at a
Mercedes-Benz Light Truck Center.
If you charge the battery yourself, make
sure to comply with the operating instruc-
tions for your battery charger.
Disconnecting the battery
Read and observe safety instructions
and precautions (
page 351).

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.
!Have the battery checked regularly by
an authorized Mercedes-Benz Light
Truck Center.
Refer to Maintenance Booklet for main-
tenance intervals or contact an autho-
rized Mercedes-Benz Light Truck
Center for further information.
!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.
Warning!
G
With 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 position
P

356 Practical hintsTowing the vehicleMercedes-Benz recommends that the vehi-
cle be transported with all wheels off the
ground using flatbed or appropriate wheel
lift/dolly equipment. This method is pref-
erable to other types of towing.
When circumstances do not permit the
recommended towing methods, the vehi-
cle may be towed with all wheels on the ground only so far as necessary to have the
vehicle moved to a safe location where the
recommended towing methods can be em-
ployed.
!Use flatbed or wheel lift/dolly equip-
ment, with SmartKey in starter switch
turned to position0.
Do not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
To prevent damage during transport,
do not tie down vehicle by its chassis or
suspension parts. Use the towing eyes.
Switch off the ESP (
page 86),
tow-away alarm (
page 89) and the
automatic central locking
(
page 141).
!When towing the vehicle with all wheels
on the ground, the gear selector lever
must be in position N and the
SmartKey must be in starter switch
position2.
When towing the vehicle with all wheels
on the ground, the vehicle may be
towed only for distances up to 30 miles
(50 km) and at a speed not to exceed
30 mph (50 km/h).
If the vehicle is towed with one axle
raised (observe instructions regarding
flexible drive shaft and propeller
shafts), the engine must be shut off
(SmartKey in starter switch position1).
Otherwise, the 4-ETS may become en-
gaged which may cause loss of towing
control.
!Do not tow-start the vehicle.Warning!
G
Prior to towing the vehicle with all wheels on
the ground, make sure the SmartKey is in
starter switch position2.
If the SmartKey is left in the starter switch
position0 for an extended period of time, it
can no longer be turned in the switch. In this
case, the steering is locked. To unlock, re-
move SmartKey from starter switch and re-
insert.
Always tow with a tow bar if:

the engine will not run


there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.

357 Practical hints
Towing the vehicle
Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.iThe gear selector lever will remain
locked in positionP and the SmartKey
will not turn in the starter switch if the
battery is disconnected or discharged.
For more information, see “Battery”
(page 351) and “Jump starting”
(page 354).
For information on manually unlocking
transmission gear selector lever, see
(page 327).
iTo signal turns while being towed with
hazard warning flasher in use, turn
SmartKey in starter switch to
position2 and activate combination
switch for left or right turn signal in
usual manner – only the selected turn
signal will operate.
Upon canceling the turn signal, the
hazard warning flasher will operate
again.
!When towing the vehicle with all wheels
on the ground, note the following:
With the automatic central locking acti-
vated and the SmartKey in starter
switch position2, the vehicle doors
lock if the wheels are turning at vehicle
speeds of approx. 9 mph (15 km/h) or
more.
To prevent the vehicle doors from lock-
ing, deactivate the automatic central
locking (
page 141).
Towing of the vehicle should only be
done using the towing eye. Never at-
tach tow cable, tow rope or tow rod to
vehicle chassis, frame or suspension
parts.

384 Technical termsMemory function*
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
A display field in the instrument cluster
used to present information provided
by the control system.
Normal occupant weight
(
page 272)Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


Engine


Clutch/torque converter


Transmission


Transfer case


Drive shaft


Differential


Axle shafts/axlesProduction options weight
(
page 272)
PSI
(Pounds per square i
nch)
(
page 272)
Recommended tire inflation pressure
(page 272)
Rear Parking Assist*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint system
Seat belts, belt tensioner, airbags and
child seat restraint systems. As inde-
pendent systems, their protective func-
tions complement one another.

385 Technical terms
Rim
(
page 273)
RON
(Research O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line’s ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission gear selec-
tor lever from being moved out of
positionP without key turned and
brake pedal depressed.
Sidewall
(
page 273)SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Tele Aid System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIN
(T
ire I
dentification N
umber)
(
page 273)
Tire load rating
(page 262)
Tire ply composition and material used
(page 273)
Tire speed rating
(page 273)
Traction
(page 273)

388 IndexAlarm system
Anti-theft 88
Anticorrosion/antifreeze 379
Antilock brake system (ABS) 381
Anti-theft alarm system
Arming 88
Canceling alarm 89
Disarming 89
Anti-theft systems 88
Anti-theft alarm system 88
Tow-away alarm 89
Aquaplaning see Hydroplaning
Armrest
Storage compartment below 191
Storage compartment in front of 191
Ashtrays 194
Aspect ratio 271
At the gas station 235
ATF (automatic transmission fluid) 244
AUDIO menu 128
Selecting radio station 129
Auto-dimming for rear view mirror 160
Automatic central locking
Activating/deactivating (control
system) 141Automatic climate control
Deactivating 170
Automatic headlamp mode 111
Automatic locking when driving 98
Automatic transmission 148
Accelerator position 153
Emergency operation (Limp Home
Mode) 153
Fluid level 244
Gear ranges 150
Gear selector lever position 148, 151
Gear shifting malfunctions 153
Kickdown 153
Manual shifting 149
One-touch gearshifting 149
Transmission fluid 244B
BabySmart
TM
Airbag deactivation system 74, 381
Compatible child seats 74, 381
Self-test 75
Backup lamps 334
Bulbs 334
Replacing bulbs 342
Bar 271
BAS 80, 82, 381
Messages in display 298
Batteries
SmartKey (replacing) 331
Batteries, SmartKey
Check lamp 95
Checking 95
Battery box
Fuse box in 360
Battery discharged
Jump starting 354
Battery, vehicle 247, 351
Charging 351
Disconnecting 352
Messages in display 302, 303
Reconnecting 353

390 IndexCentigrade
Setting temperature units 135
Central locking
From inside 99
Switch 99
Switching on/off (control
system) 141
Unlocking from inside 99
Certification label 366
Changing
Key setting 142
Charging
Vehicle battery 351
Checking
Coolant level 237, 244
Oil level 237, 239
Checklist
Off-road driving 225
Child safety 72
Infant and child restraint systems 62,
68, 72
LATCH child seat anchors 77
Child safety switch see Blocking of rear
door window operation
Cigarette lighter 195Cleaning
Cup holders 284
Gear selector lever 284
Hard plastic trim items 284
Headlamps 162
Headliner 284
Illuminated door sill panels 285
Instrument cluster 284
Leather upholstery 285
Light alloy wheels 284
MB Tex upholstery 285
Plastic and rubber parts 285
Rear Parking Assist sensors* 283
Seat belts 284
Steering wheel 284
Windows 283
Windshield 54
Wiper blades 283
Wood trims 285
Cleaning tires 250
Climate control 164
Adjusting 167
Defogging windshield 167
Defrosting 168
Rear window defroster 163
Setting the temperature 166Clock 25
Closing
Glove box 190
Hood 239
Side windows 171
Tailgate 98
Tilt/sliding sunroof 173, 328
Tilt/sliding sunroof with
SmartKey 175
Windows 171
Windows with SmartKey 172
Closing tilt/sliding sunroof
In an emergency 328
Cockpit 22, 381
Cockpit management and data system
(COMAND) 382
Cold tire inflation pressure 271
COMAND 382
COMAND see separate operating
instructions
Combination switch 23, 114
High beam flasher 52, 114
High beam headlamps 114
Turn signals 52
Windshield wipers 53

391 Index
Control and operation of radio
transmitters 231
Control system 123, 382
AUDIO menu 128
Convenience submenu 142
Display digital speedometer 128
Functions 125, 127
Instrument cluster submenu 135
Lighting submenu 137
Menus 126, 127
Multifunction display 123
Multifunction steering wheel 124
NAVI menu 130
Satellite radio (USA only) 129
Selecting radio system 129
Settings menu 132
Standard display menu 128
Submenus 125, 127
TEL menu 145
Trip computer menu 144
Vehicle status message memory
menu 131
Vehicle submenu 141
Convenience feature 172Convenience submenu 142
Activating easy-entry/exit
feature 142
Setting key-dependency 143
Setting parking position for exterior
rear view mirror 143
Coolant 244, 378
Adding 245
Anticorrosion/antifreeze
quantity 378
Capacities 374
Checking level 244
Messages in display 305, 306, 307
Temperature 234
Temperature display 120
Warning lamp 305
Coolant level
Checking 237, 244
Crossing obstacles 228
Cruise control 176, 382
Canceling 177
Driving downhill 177
Driving uphill 177
Fine adjustment 178Messages in display 308
Setting current speed 177
Setting speed 178
Cruise control lever 176
Cup holder
In rear passenger footwell 193
Cup holders 192
Cleaning 284
In front passenger footwell 192
In glove box lid 192
Next to the armrest 192
Curb weight 271
Customer Assistance Center (CAC) 381