2006 MERCEDES-BENZ G55AMG inflation pressure

Contents
Operation......................................... 217
The first 1000 miles (1500 km) ......... 218
Driving instructions ............................ 220
Drive sensibly – save fuel ............. 220
Drinking and driving ..................... 220
Pedals .......................................... 220
Power assistance ......................... 221
Brakes .......................................... 221
Driving off..................................... 222
Parking ......................................... 222
Tires ............................................. 223
Hydroplaning ................................ 224
Tire traction .................................. 224
Tire speed rating .......................... 225
Winter driving instructions ........... 225
Standing water ............................. 226
Passenger compartment .............. 227
Off-road driving ............................ 227
Control and operation of
radio transmitters......................... 235
Driving abroad .............................. 236
Catalytic converter ....................... 236
Emission control........................... 237
Coolant temperature .................... 238At the gas station .............................. 239
Refueling ...................................... 239
Check regularly and before
a long trip ..................................... 240
Engine compartment ......................... 242
Hood ............................................ 242
Engine oil ..................................... 243
Transmission fluid level ................ 248
Coolant level ................................ 248
Windshield/rear window
washer system and headlamp
cleaning system ........................... 249
Battery ............................................... 251
Tires and wheels ................................ 252
Important guidelines .................... 252
Tire care and maintenance ........... 253
Direction of rotation ..................... 255
Loading the vehicle ...................... 255
Recommended tire inflation
pressure ....................................... 260
Checking tire inflation pressure ... 261
Tire labeling.................................. 263
Load identification ....................... 267
DOT, Tire Identification Number
(TIN) ............................................. 268
Maximum tire load ....................... 269Maximum tire inflation pressure .. 270
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 271
Tire ply material ........................... 273
Tire and loading terminology ........ 273
Rotating tires ............................... 276
Winter driving .................................... 278
Winter tires .................................. 278
Block heater (Canada only) .......... 279
Snow chains................................. 279
Maintenance...................................... 280
Clearing the maintenance
service indicator .......................... 281
Maintenance service term
exceeded ..................................... 281
Calling up the maintenance
service indicator .......................... 281
Resetting the maintenance
service indicator .......................... 282
Vehicle care....................................... 283
Cleaning and care of the vehicle .. 283

223 Operation
Driving instructions
Tires
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and be-
come visible at a tread depth of approxi-
mately
1/16in (1.6 mm), at which point
the tire is considered worn and should be
replaced.The treadwear indicator appears as a solid
band across the tread.
Specified tire inflation pressures must be
maintained. This applies particularly if the
tires are subject to high loads (e.g. high
speeds, heavy loads, high ambient temper-
atures).

Turn the SmartKey in the starter switch
to position0 and remove the SmartKey
from the starter switch.

Take the SmartKey and lock vehicle
when leaving.
!
Set the parking brake whenever park-
ing or leaving the vehicle. In addition,
move gear selector lever to positionP.
When parking on hills, turn front wheel
towards the road curb.
Warning!G
If you feel a sudden significant vibration or
ride disturbance, or you suspect that possi-
ble damage to your vehicle has occurred,
you should turn on the hazard warning flash-
ers, carefully slow down, and drive with cau-
tion to an area which is a safe distance from
the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have it towed to the nearest
Mercedes-Benz Light Truck Center or tire
dealer for repairs.
Warning!G
Although the applicable federal motor vehi-
cle safety laws consider a tire to be worn
when the treadwear indicators (TWI) be-
come visible at approximately
1/16in
(1.6 mm), we recommend that you do not al-
low your tires to wear down to that level. As
tread depth approaches
1/8in (3.0 mm),
the adhesion properties on a wet road are
sharply reduced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.

229 Operation
Driving instructions
Checklist before off-road driving
Engine oil level

Check the engine oil level
(
page 244). The display ENGINE OIL
LEVEL - OK
must appear in the multi-
function display.
Only then can the vehicle obtain a trou-
ble-free oil supply, even on steep gradi-
ents.
Tires

Check the tread depth and maintain
specified tire inflation pressure
(a placard with the recommended tire
inflation pressures is located on the
driver’s door B-pillar (
page 255)).

Check tires for possible damage and
remove foreign objects.

Replace missing valve caps.Rims

Dented or bent rims can cause tire in-
flation pressure loss and damage the
tire beads. For this reason, check and,
if necessary, change rims before driv-
ing off-road.
Vehicle tool kit

Check if the vehicle jack is functional.

In all cases take the vehicle tool kit, a
strong tow rope, a shovel, and a small
plank (to put under the vehicle jack on
sandy soil) with you.

Avoid excessive engine
speeds – drive at moderate engine
speeds (max. 3000 rpm).

Before driving through water, deter-
mine its depth.

Do not stop vehicle while immersed
in water, and do not shut off the en-
gine.

In sandy soil, drive at a steady
speed as allowed by conditions.
This helps overcome the vehicle
rolling resistance and reduces the
likelihood of the vehicle sinking into
the ground.

Do not initiate jumps with the vehi-
cle. It interrupts the forward mo-
mentum of the vehicle.

Always drive on slopes with the en-
gine running and the vehicle in
gear.

Inspect the vehicle for possible
damage after each off-road trip.

239 Operation
At the gas station
At the gas station
Refueling
The fuel filler flap is located on the
right-hand side of the vehicle towards the
rear.
Locking/unlocking the vehicle with the re-
mote control automatically locks/unlocks
the fuel filler flap.1Fuel filler flap (including a placard on
the inner side with supplemental tire
inflation pressure information)
2Fuel cap
Turn off the engine.
Remove the SmartKey from the starter
switch.
Open fuel filler flap1 by pushing at
the point indicated by the arrow.
Turn fuel cap2 to the left and hold on
to it until possible pressure is released.
Take off fuel cap2 and set it in the re-
cess on fuel filler flap1.
To prevent fuel vapors from escaping
into open air, fully insert filler nozzle
unit.
Only fill your tank until the filler nozzle
unit cuts out – do not top up or over-
fill.
Replace fuel cap2 by turning it clock-
wise until it audibly engages.
Close fuel filler flap1.
Warning!G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious inju-
ry. Whenever you are around gasoline, avoid
inhaling fumes and skin contact, extinguish
all smoking materials. Never allow sparks,
flame or smoking materials near gasoline!
Failure to remove the fuel cap slowly could
result in personal injury.
Warning!G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas
discharge. This could cause the gas to spray
back out when removing the fuel pump noz-
zle, which could cause personal injury.


241 Operation
At the gas station
G55AMG
1Coolant
2Brake fluidCoolant
For normal replenishing, use water (pota-
ble water quality). For more information,
see “Coolant level” (
page 248) and see
“Fuels, coolants, lubricants, etc.”
(
page 376).
Brake fluidEngine oil level
For more information on engine oil, see
“Engine oil” (
page 243).
Tire inflation pressure
For more information, see “Checking tire
inflation pressure” (
page 261).
Vehicle lighting
Check function and cleanliness. For infor-
mation on replacing light bulbs, see “Re-
placing bulbs” (
page 335).
For more information, see “Exterior lamp
switch” (
page 110).
Windshield/rear window washer sys-
tem and headlamp cleaning system
For more information on refilling the reser-
voir, see “Windshield/rear window washer
system and headlamp cleaning system”
(
page 249).
i
Opening the hood, see (page 242).
!
If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks immediately. Noti-
fy an authorized Mercedes-Benz Light
Truck Center immediately. Do not add
brake fluid as this will not solve the
problem. For more information, see
“Practical hints” (
page 292).

252 Operation
Tires and wheels
See an authorized Mercedes-Benz Light
Truck Center for information on tested and
recommended rims and tires for summer
and winter operation. They can also offer
advice concerning tire service and
purchase.
Retreaded tires are not tested or recom-
mended by Mercedes-Benz, since previous
damage cannot always be recognized on
retreads. The operating safety of the
vehicle cannot be assured when such tires
are used.Important guidelines

Only use sets of tires and rims of the
same type and make.

Tires must be of the correct size for the
rim.

Break in new tires for approximately
60 miles (100 km) at moderate
speeds.

Regularly check the tires and rims for
damage. Dented or bent rims can
cause tire inflation pressure loss and
damage to the tire beads.

If vehicle is heavily loaded, check tire
inflation pressure and correct as
required.

Do not allow your tires to wear down
too far. Adhesion properties on wet
roads are sharply reduced at tread
depths under
1/8in (3 mm).

When replacing individual tires, you
should mount new tires on the front
wheels first (on vehicles with
same-sized wheels all around).
Warning!G
Replace rims or tires with the same designa-
tion, manufacturer and type as shown on the
original part. See an authorized
Mercedes-Benz Light Truck Center for fur-
ther information. If incorrectly sized rims
and tires are mounted:

The wheel brakes or suspension
components can be damaged.

The operating clearance of the wheels
and the tires may no longer be correct.
Warning!G
Worn, old tires can cause accidents. If the
tire tread is badly worn, or if the tires have
sustained damage, replace them.
When replacing rims, only use genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can
result in the bolts loosening and possibly an
accident.

253 Operation
Tires and wheels
Tire care and maintenance
Regularly check your tire inflation pressure
at least once a month. For more informa-
tion on checking tire inflation pressure see
“Recommended tire inflation pressure”
(
page 260).Tire inspection
Every time you check your tire inflation
pressure, you should also inspect your
tires for the following:

excessive treadwear (page 254)

cord or fabric showing through the
tire’s rubber

bumps, bulges, cuts, cracks or splits in
the tread or side of the tire
Replace the tire if you find any of the above
conditions.
Make sure you also inspect the spare tire
periodically for condition and inflation.
Spare tires will age and become worn over
time even if never used, and thus should be
inspected and replaced when necessary.Life of tire
The service life of a tire is dependent upon
varying factors including but not limited to:

Driving style

Tire inflation pressure

Distance driven
Warning!G
Regularly check the tires for damage. Dam-
aged tires can cause tire inflation pressure
loss. As a result, you could lose control of
your vehicle.
Worn, old tires can cause accidents. If the
tire tread is badly worn, or if the tires have
sustained damage, replace them.
Warning!G
Tires and spare tire should be replaced after
six years, regardless of the remaining tread.

255 Operation
Tires and wheels
Direction of rotation
Unidirectional tires offer added advan-
tages, such as better hydroplaning perfor-
mance. To benefit, however, you must
make sure the tires rotate in the direction
specified.
An arrow on the sidewall indicates the
intended direction of rotation (spinning) of
the tire.Loading the vehicle
Two labels on your vehicle show how much
weight it may properly carry.

The Tire and Loading Information
placard can be found on the driver’s
door B-pillar. This placard tells you im-
portant information about the number
of people that can be in the vehicle and
the total weight that can be carried in
the vehicle. It also contains information
on the proper size and recommended
tire inflation pressures for the original
equipment tires on your vehicle.

The Certification label, also found on
the driver’s door B-pillar tells you about
the gross weight capacity of your vehi-
cle, called the Gross Vehicle Weight
Rating (GVWR). The GVWR includes the
weight of the vehicle, all occupants,
fuel and cargo. The Certification label
also tells you about the front and rear
axle weight capacity, called the Gross
Axle Weight Rating (GAWR). The GAWR
is the total allowable weight that can be carried by a single axle (front or rear).
Never exceed the GVWR or GAWR for
either the front axle or rear axle.
1Driver’s door B-pillar
Following is a discussion on how to work
with the information contained on the
placard with regards to loading your
vehicle.
i
Spare wheels may be mounted against
the direction of rotation (spinning) even
with a unidirectional tire for temporary
use only until the regular drive wheel
has been repaired or replaced. Always
observe and follow applicable tempo-
rary use restrictions and speed limita-
tions indicated on the spare wheel.