2008 MERCEDES-BENZ G55AMG wheel bolts

277
Operation
Tires and wheels
 Tires and wheels
Contact an authorized Mercedes-Benz
Light Truck Center for information on test-
ed and recommended rims and tires for
summer and winter operation. They can
also offer advice concerning tire service
and purchase.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 of less than
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 bo lts specified for the
particular rim type. Failure to do so can
result in the bolts loos ening and possibly an
accident.
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.
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308 Operation
Tires and wheels
If applicable to your vehicle’s tire confi-
guration, tires can be rotated according to
the tire manufacturer’s recommended
intervals in the tire manufacturer’s
warranty pamphlet located in your vehicle
literature portfolio. If none is available,
tires should be rotated every 3 000 to
6 000 miles (5 000 to 10 000 km), or
sooner if necessary, according to the
degree of tire wear. The same rotation
(spinning) direction must be maintained
(
page 280).
Rotate tires before the characteristic tire
wear pattern becomes visible (shoulder
wear on front tires an d tread center wear
on rear tires).
Thoroughly clean the mounting face of
wheels and brake disks, i.e. the inner side
of the wheels/tires, during each rotation.
Check for and ensure proper tire inflation
pressure. For information on wheel change, see the
“Practical hints” section (page 364) and
(
page 388).
Warning!G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightene d with a torque of
97 lb-ft (130 Nm).
Only use genuine Mercedes-Benz wheel
bolts specified for yo ur vehicle’s rims.
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390 Practical hints
Flat tire
Wheel wrench
Take the wheel wrench out of the
vehicle tool kit.
On wheel to be changed, loosen but do
not yet remove the wheel bolts
(approximately one full turn with the
wheel wrench).
Pump handle (three pieces)
1Indent for activation of release bolt 2
Take the pump handle out of the
vehicle tool kit.
Assemble the pump handle for the
jack.
Jack
2Release bolt
Set indent 1 of the pump handle onto
release bolt 2.
Using the pump handle, turn release
bolt 2 clockwise until its stop.
Release bolt 2 is closed.
Remove the pump ha ndle from release
bolt 2.
Set the pump handle into the pump
lever (indicated by the arrow).

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391
Practical hints
Flat tire
Place jack on firm ground.
Position jack under the axle housing,
so that it is always vertical (plumb-line)
as seen from the side, even if the
vehicle is parked on an incline.
Be certain the jack arm is positioned
correctly under the axle housing (axle
must fall into jack contour).
Jack up the vehicle by pumping
(indicated by the arrow) until the wheel
is a maximum of 1.2 in (3 cm) from the
ground.
Removing the wheel
Remove the wheel bolts.
Remove the wheel.
!Do not position the jack on the body of the
vehicle, as this may cause damage to the
vehicle.
Warning!G
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle.

Never start the engine when the vehicle
is raised.

Never lie down under the raised vehicle.
!Do not place wheel bolts in sand or dirt. This
could result in damage to the bolt and wheel hub
threads.
Warning!G
Make sure no one is injured when removing
the wheel.
Grip wheel from the sides.
Keep hands from beneath the wheel.
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392 Practical hints
Flat tire
Mounting the new wheel
Clean contact surfaces of wheel and
wheel hub.
Push the wheel onto the wheel hub and
press firmly.
Insert wheel bolts and tighten them
slightly. Lowering the vehicle
Using the pump handle, turn the
release bolt of the jack counter-
clockwise approximately one turn
(
page 390).
Lower the vehicle until it is resting fully
on its own weight.
Remove the jack.
!To avoid paint damage, place wheel flat
against hub and hold it there while installing first
wheel bolt.
Warning!G
Always replace wheel bolts that are
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact
an authorized Mercedes-Benz Light Truck
Center.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident.
Make sure to use the correct wheel bolts.
Warning!G
Only use genuine Mercedes-Benz wheel
bolts. Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle
could tip over.
iNever turn the release bolt of the jack more
than one or two revolut ions. Otherwise hydraulic
fluid can escape.
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393
Practical hints
Flat tire
1
-5 Wheel bolts
Tighten the five wheel bolts evenly,
following the diagonal sequence illus-
trated ( 1 to 5), until all wheel bolts
are tight. Observe a tightening torque
of 96 lb-ft (130 Nm).
Disassemble the pump handle
(
page 390).
Put the pump handle and the wheel
wrench back into the vehicle tool kit.
Store the vehicle tool kit in the
designated storage compartment
(
page 364).
Press the jack piston in again and close
the lowering screw (
page 390).
Store the jack in the designated
storage compartment (
page 365).
After changing the wheel, secure the
damaged wheel on the spare wheel
carrier (
page 367). Make sure the
wheel cannot come loose.
Check the tire inflation pressure and
correct it if necessary.
Follow recommended cold tire inflation
pressures listed on the Tire and
Loading Information placard on the
driver’s door B-pillar (
page 280).
Warning!G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
96 lb-ft (130 Nm).
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401
Practical hints
Towing the vehicle
Transporting the vehicle
When transporting the vehicle, you can use
the towing eyes for pulling the vehicle onto
a trailer or transporter.
Move the gear selector lever to neutral
position
N.
Shift the transfer case to neutral
position N.
To avoid damaging the vehicle, it
should only be tied down on the
wheels/wheel rims, not on chassis
components such as the transverse
link or trailing arm. Towing the vehicle - various problem
scenarios
Comply with all towing information
(
page 399).
In case of engine damage, transmission
damage or malfunctions in electrical
equipment
Move the gear selector lever to neutral
position N.
Shift the transfer case to neutral
position N. In case of transfer case damage or for
towing vehicle distances exceeding
30 miles (50 km)
The propeller shafts to
the drive axles must
be removed.
In case of front axle damage
Raise the front axle when towing. The
propeller shaft between the rear axle and
the transfer case must be removed.
In case of rear axle damage
When the rear axle is raised, the vehicle
can only be towed with a wheel lift or a
dolly placed under its front wheels.
!When removing drive shaft, place M10 nuts
on bolts as distance sleeves and tighten
using M8 nuts.
Always install new self-locking nuts when
reinstalling the drive shaft.
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449
Index
Telephone* 226
Changing mobile phone cradle 228
Inserting in cradle 227
Installing a different mobile phone cradle 228
Message in display 362
Removing from cradle 228
Telephone* tray Armrest 216
Below armrest 216
Temperature Setting interior temperature 185
Tires 287
Text messages Multifunction display 338–341
Tie-down rings (cargo compartment) 209
Tightening torque (wheel bolts) 393
Tilt/sliding sunroof 195 Automatic opening 196
Closing 196, 372
Opening 196, 372
Opening fully 196
Stopping 196
TIN 306
Tire Vehicle maximum load on 307 Tire and Loading Information 281
Tire and loading terminology 304
Tire care and maintenance 278
Tire Identification Number see TIN
Tire inflation pressure
Checking 286, 288
Tire inspection 278
Tire load rating 306
Tire ply composition and material used 306
Tire speed rating 250, 297, 306
Tire terminology 304
Tire traction 249
Tires 277, 414 Advanced Tire Pressure Monitoring System (Advanced TPMS) 289
Advanced TPMS malfunction telltale 333
Direction of rotation 280
Driving instructions 248
Low tire pressure telltale 333
Messages in display 340–341, 359–360
Retreads 277
Rims and tires 414
Rotating 307 Service life 278
Temperature 287, 303
Tread depth 279, 309
Wear pattern 308
Winter 309
Tongue Weight Rating see TWR
Tools 364
Total load limit 306
Tow-away alarm 30, 97 Arming 97
Disarming 97
Disarming for transport 97
Tow-away alarm system Canceling alarm 97
Towing eye, front 402
Towing eye, rear 402
Towing the vehicle 399 Stranded vehicle 402
Towing the vehicle - various problem scenarios 401
Traction 307
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