wheel torque MERCEDES-BENZ G-CLASS SUV 2008 Owners Manual

12
SRS (Supplemental Restraint Sys-
tem).......................................................
33
Display message..................... 199, 202
Warning lamp. .......................... 33, 214
Standard display (on-board com-
puter) ................................................... 101
Station see Radio
Status line (on-board computer)......... 98
Selecting the display....................... 106
Steering wheel
Adjusting .......................................... 66
Buttons (on-board computer)............ 97
Storing settings ................................ 70
Steering wheel heating........................ 67
Stowage compartment...................... 146
Armrest (under) .............................. 147
Glove compartment. .......................147
Stowage compartments
Overview. .......................................... 30
Submenu (on-board computer)......... 104
Convenience ................................... 105
Heating. .......................................... 105
Instrument cluster .......................... 105
Lighting........................................... 105
Time/date. ..................................... 105
Vehicle............................................ 105
Summer opening .................................. 85
Sun visor............................................. 148Supplemental Restraint System
see SRS
Surround lighting
Switching on/off (on-board com-
puter). ............................................. 107
Switching off the alarm
ATA. .................................................. 52 T
Tailgate (Cabriolet) Opening/closing. .............................. 58
Tail lamps
Changing. ....................................... 240
Display message ............................. 207
Tank capacity..................................... 276
Technical data Acceleration. .................................. 265
Engine............................................ .263
Speed. ............................................ 264
Trailer loads .................................... 275
Tyres. .............................................. 267
Vehicle dimensions. ........................269
Vehicle weights............................... 271
Wheels. ........................................... 267
Telephone
see Mobile phone
Telephone compartment................... 147Temperature
Coolant. ............................................ 96
Outside temperature......................... 97
Thermatic
Malfunction indicator lamp. ............210
Third brake lamp
Display message ............................. 205
Tightening torque............................... 246
Time Setting (on-board computer).......... .106
Setting the time (on-board com-
puter). ............................................. 106
Tonneau cover.................................... 136
TopTether.............................................. 45
Tow-away protection........................... 52
Towing................................................. 254
Towing eye Front. .............................................. 253
Rear. ............................................... 254
Trailer
7-pin connector .............................. 180
Display message ............................. 204
Power supply. ................................. 180
Trailer loads
Technical data. ............................... 275
Trailer tow hitch
Notes on care ................................. 186Index
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13
Trailer towing
Driving tips. .................................... 178
Mounting dimensions. ....................274
Ultrasonic reversing aid. .................119
Transfer case
Display message ............................. 202
Shift range ........................................ 92
Transmission
Display message ............................. 198
Transmission output (maximum)
Telephone/two-way radio ...............260
Transport (vehicle)............................. 254
Travelling uphill .................................. 174
Trip computer Menu (on-board computer). ............110
Trip meter........................................... 100
Resetting. ......................................... 96
Turn signal lamps
Display message ............................. 205
Two-way radio
Installation. ..................................... 260
Tyre grip.............................................. 171
Tyre pressure ..................................... 164
Calling up (on-board computer) .....165
Display message ............................. 198
see Tyre pressure
Tyres
Direction of rotatio n....................... 164
General notes. ................................ 162
Technical data. ............................... 267Tyre tread............................................ 164 U
Ultrasonic reversing aid.................... 118
Malfunction..................................... 222
Range of the sensors. .....................118
Trailer towing. ................................. 119
Warning displa y.............................. 119
Unladen weight.......................... 271, 272
Unlocking Emergency unlocking...................... 229
From the inside (central unlocking
button) .............................................. 56 V
Variable Speedtronic .........................115
Vehicle Emergency unlocking .............229, 230
Individual settings (on-board com-
puter). ............................................. 104
Leaving parked up. .........................228
Towing. ........................................... 254
Transporting ................................... 254
Vehicle battery................................... 247
Vehicle dimensions............................ 269
Vehicle electronics............................ 260
Vehicle identification number
(VIN)............................................ 261, 262
Vehicle identification plates............. 261Vehicle tool kit
Cabriolet. ........................................ 191
Long-wheelbase station wagon....... 189
Short-wheelbase station wagon. .....190
Vehicle weights.................................. 271 W
Warning and indicator lamp ABS (yellow).................................... 212
LIM (cruise control)......................... 114
LIM (variable Speedtronic). .............116
Warning and indicator lamps
ESP ®
......................................... 48, 213
Warning signal
Audible. .......................................... 217
Warning triangle
Cabriolet. ........................................ 191
Long-wheelbase station wagon
............................................... 188, 190
Washer fluid
Display message ............................. 209
Wearing seat belts............................... 71
Wheel bolts Tightening torque............................ 246
Wheels
General notes. ................................ 162
Interchanging.................................. 167
Technical data. ............................... 267
Windowbags......................................... 37 Index
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Driving safety sys
tems 49R
do not deactivate ESP ®
under any cir-
cumstances.
R only depress the accelerator pedal as far
as necessary when pulling away.
R adapt your driving style to suit the pre-
vailing road and weather conditions.
The vehicle could otherwise go into a skid.
ESP ®
cannot reduce the risk of an accident
if you drive too fast. ESP ®
cannot override
the laws of physics.
! If:
R the vehicle is being towed with the front
or rear axle raised,
R the parking brake is being tested using a
dynamometer,
the ignition must be switched off (key in
position 0or 1in the ignition lock). Other-
wise, application of the brakes by ESP ®
could destroy the brake system on the front
or rear axle.
! A function or performance test should
only be carried out on a twin-axle dyna-
mometer. If you wish to operate the vehicle
on such a dynamometer, please consult a
Mercedes-Benz Service Centre in advance. You could otherwise damage the drive train
or the brake system.
i If differential locks are switched on, ABS,
BAS and ESP ®
switch themselves off auto-
matically.
i Only use wheels with the recommended
tyre sizes. Only then will ESP ®
function
properly.
Activating/deactivating ESP ® ESP
®
is activated automatically when the
engine is running.
It may be best to deactivate ESP ®
in the fol-
lowing situations:
R when using snow chains
R in deep snow
R on sand or gravel G
Risk of accident
Activate ESP ®
as soon as the situations
described above no longer apply. ESP ®
will
otherwise not be able to stabilise the vehi-
cle if the vehicle starts to skid or a wheel
starts to spin. If you deactivate ESP
®
:
R ESP ®
no longer improves driving stability.
R the engine's torque is no longer limited and
the drive wheels can spin. Spinning of the
wheels results in a cutting action, which
provides better grip.
R traction control is still activated.
R ESP ®
still provides support when you
brake.
R and are driving at above 60 km/h, ESP ®
still intervenes when one wheel reaches its
grip limit even though it is switched off.
i If ESP ®
is deactivated and one or more
wheels start to spin, the vwarning lamp
in the instrument cluster flashes. In such
situations ESP ®
will not stabilise the vehi-
cle. Safety
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Tyres and wheels
167
R
changed the tyre pressure
R changed the wheels or tyres
R fitted new wheels or tyres
If you wish to define the new reference values
manually:
X Use the table on the inside of the fuel filler
flap to ensure that the tyre pressure is set
correctly in all four tyres for the current
operating conditions.
Also observe the notes in the section on
tyre pressures (Y page 164).
X Make sure that the key is in position 2in
the ignition lock.
The standard display appears in the multi-
function display (Y page 101).
X Press the jork button to select the
Tyre pressure function on the multi-func-
tion steering wheel or wait until the follow-
ing message appears:
Tyre pressure displayed only after
driving a few mins.
X Press the reset button on the left of the
instrument cluster (Y page 96).
The following message appears in the
multi-function display:
Tyre pressure monitor
reactivate?
Yes No
X Press the æbutton on the multi-func-
tion steering wheel.
The following message appears in the
multi-function display:
Tyre pressure monitor restarted
The tyre pressure monitor has stored the
pressure of the tyres as a new reference
value.
If you wish to cancel the restart:
X Press the çbutton on the multi-func-
tion steering wheel.
The tyre pressure values stored at the last
restart will continue to be monitored. Interchanging the wheels
G
Risk of accident
Interchange the front and rear wheels only
if they have the same dimensions: for exam-
ple size, offset, etc.
After every wheel interchange/change,
have the tightening torque checked at a
qualified specialist workshop that has the
necessary specialist knowledge and tools
to carry out the work required. Mercedes-
Benz recommends that you use a Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety
or on safety-related systems must be car-
ried out at a qualified specialist workshop.
The wheels could work loose if they are not
tightened to a torque of 130 Nm.
For safety reasons, Mercedes-Benz recom-
mends that you only use wheel bolts of the
correct size which have been approved for
Mercedes-Benz vehicles.
The wear patterns on the front and rear tyres
differ depending on the operating conditions.
Interchange the wheels before a clear wear
pattern has formed on the tyres. Front tyres
typically wear more on the shoulders and the
rear tyres in the centre.
Interchange the wheels every 5,000 km to
10,000 km depending on the degree of tyre
wear, provided that the vehicle has the same
size front and rear tyres. Do not reverse the
direction of tyre rotation.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is interchanged. Check the tyre pressure and
reactivate the tyre pressure monitor* if nec-
essary. Operation
* optional
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Off-road driving
1751
1 2
2 Long-wheelbase station
wagon
13 37° 31°
G 55 AMG
33° 28°
Short-wheelbase station
wagon
36° 27°
Cabriolet
34° 26°
R
Follow the line of fall when driving on slopes
and steep gradients.
R Before driving on extreme uphill and down-
hill gradients, shift the transfer case to
LOW (Ypage 92).
R Engage the differential locks, if necessary
(Y page 94).
R Observe the warnings for off-road driving
(Y page 172).
R Drive slowly.
R Accelerate gently and make sure that the
wheels are gripping.
R Avoid high engine speeds, except when
driving on sandy and muddy routes with
high driving resistance. R
Select a shift range appropriate to the gra-
dient.
R Before tackling steep downhill gradients,
select shift range 1.
Maximum gradient-climbing capability On good road surfaces and with the
LOWgear
engaged selected, the maximum gradient-
climbing capability is 80%.
i If the load on the front axle is reduced
when pulling away on a steep uphill slope,
the front wheels have a tendency to spin.
4ETS recognises this and brakes the
wheels accordingly. The rear wheel torque
is increased and it is easier to pull away.
Brow of hill When driving up an uphill gradient, slightly
reduce pressure on the accelerator immedi-
ately before reaching the brow of the hill.
Make use of the vehicle’s own impetus to
travel over the brow.
This style of driving prevents:R
the vehicle from lifting off the ground on the
brow of a hill
R loss of traction
R the vehicle from travelling too quickly down
the other side
Driving downhill R
Drive slowly.
R Do not drive at an angle down steep
inclines. Steer into the line of fall and drive
with the front wheels aligned straight. Oth-
erwise, the vehicle could slip sideways, tip
and overturn.
R Before tackling steep downhill gradients,
select shift range 1.
This way you use the engine's braking
effect to reduce the speed. If this is not
sufficient, brake gently. When doing so,
make sure that the vehicle is facing in the
direction of the line of fall.
R Check that the brakes are working normally
after a long downhill stretch.
13 except G 55 AMG. Operation
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Flat tyre
246
!
Do not place wheel bolts in sand or on a
dirty surface. This could cause damage to
the bolt and wheel hub threads.
X Remove the wheel.
Fit ting a new wheel G
Risk of accident
Replace damaged or corroded wheel bolts.
Never oil or grease wheel bolts. G
Risk of accident
If a wheel hub thread is damaged, you must
not drive the vehicle any further. Consult a
qualified specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. Mercedes-
Benz recommends that you use a
Mercedes-Benz Service Centre or Service
24h for this purpose. In particular, work rel-
evant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop. G
Risk of accident
Only use wheel bolts that have been
designed for the wheel and the vehicle. For
safety reasons, Mercedes-Benz recom- mends that you only use wheel bolts which
have been approved for Mercedes-Benz
vehicles. Other bolts could work loose.
Do not tighten the wheel bolts completely
while the vehicle is still jacked up. The vehi-
cle could topple off the jack.
X Clean the wheel and wheel hub contact
surfaces.
X Place the wheel on the wheel hub and push
it on.
X Tighten the wheel bolts until they are fin-
ger-tight.
Lowering the vehicle X
Open the pressure release screw on the
jack using the pump lever (Y page 244) by
approximatel y one turn.
X Place the jack to one side. 1
–5 Wheel bolts
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indica-
ted (1 to5). The tightening torque is
130 Nm . G
Risk of accident
Have the tightening torque checked imme-
diately after a wheel is changed. The wheels
could work loose if they are not tightened
to a torque of 130 Nm.
X Push the jack piston back in and close the
drain plug.
X Secure the faulty wheel by using the fas-
tening bolts to the exterior spare wheel
bracket. Practical advice
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