2003 MERCEDES-BENZ G55AMG run flat

215 Operation
At the gas station
Check regularly and before a long trip
1Coolant
2Brake fluid
Coolant
For normal replenishing, use water (pota-
ble water quality). For more information on
coolant level see (
page 220) and the
“Technical data” section (
page 316).
Brake fluid
More information on brake fluid can be
found in the “Technical data” section
(
page 316).Windshield/rear window washer sys-
tem and headlamp cleaning system
For more information on refilling the reser-
voir, see (
page 222).
Engine oil level
For more information on engine oil, see
(
page 218).
Vehicle lighting
Check function and cleanliness. More in-
formation on replacing light bulbs can be
found in the “Practical hints” section
(page 279).
Exterior lamp switch (
page 100).
Tire inflation pressure
For more information on tire inflation pres-
sure, see (
page 225).
iUse only premium unleaded gasoline
with a minimum Posted Octane Rating
of 91 (average of 96 RON / 86 MON).
Information on gasoline quality can
normally be found on the fuel pump.
More information on gasoline can be
found in the Factory Approved Service
Products pamphlet. iLeaving the engine running and the fuel
cap open can cause the
?
lamp to
illuminate.
See also “Practical hints” section
(
page 243).
iOpening the hood, see (
page 216).

299 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-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 key 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 76),
tow-away alarm (
page 80) and the
automatic central locking
(
page 128).
!When towing the vehicle with all wheels
on the ground, the selector lever must
be in position N and the key m us t be in
starter switch position 2.
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
(key in starter switch position1). Oth-
erwise, 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 certain that the key is in
starter switch position2.
If the key 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 key from starter switch and reinsert.
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.

350 IndexTire inflation pressure
Checking 225
Tire speed rating 201, 329
Tire traction 201
Tires 224, 313, 322
Consumer information 322
Direction of rotation 225
Driving instructions 200
Retreads 224
Rims and tires 313
Service life 225
Temperature 226
Temperature grades 323
Tread depth 228
Wear pattern 226
Winter 228
Tools 268
Tow-away alarm 27, 80
Arming 80
Disarming 80
Disarming for transport 80
Towing eye, front 302
Towing eye, rear 302
Towing the vehicle 299
Stranded vehicle 302
Various faults 301Tracking services
For stolen vehicle 191
Traction 322, 329
Transfer case 141, 329
Gear range 141
Messages in the multifunction
display 142
Switching 141
Transfer case differential lock
Switching on 145
Transmission see
Automatic transmission 220
Transmission selector lever 275
Unlocking manually 275
Tread depth (tires) 228
Treadwear 322
Trip computer 130
Trip odometer
Resetting 109
Trunk see Cargo compartment 87, 88
Turn signal lamp, side
Replacing bulbs 284
Turn signal lamps
Replacing bulbs 279, 280Turn signals 23, 46
Additional in mirrors 279
Cleaning lenses 234
Front bulbs 279
Indicator lamps 25
Rear bulbs 280
Turning off
Engine 51
U
Units
Setting speedometer units 122
Setting temperature units 122
Unlocking 32, 84
Driver’s door in an emergency 272
Fuel filler flap 214
Global 85
In an emergency 272
Selective settings 85
Transmission selector lever
manually 275
Vehicle in an emergency 190
With the SmartKey 32
Upgrade signals
Tele Aid 189
Uphill driving
Cruise control 163