2008 MERCEDES-BENZ G-CLASS SUV coolant level

5
Changing a wheel
see Flat tyre
Checklist (off-road driving)............... 174
Child-proof locks Rear doors. ....................................... 46
Side windows (rear) ..........................47
Children
In the vehicle. ................................... 38
Restraint systems. ............................ 38
Child seat
Automatic recognition ......................40
Automatic recognition (malfunc-
tion). ............................................... 211
Child restraint systems ....................44
ISOFIX............................................... 44
Recommendations. ...........................43
Suitable positions. ............................ 42
Child seat lock...................................... 44
Cigarette lighter................................. 149
Cockpit Overview. .......................................... 20
COMAND............................................... 99
On-board computer. .........................99
see separate operating instructions
Constant headlamp mode................... 76
Setting (on-board computer).......... .107
Consumption statistics (on-board
computer)........................................... 110
Convenience closing............................ 85Coolant................................................
161
Checking the level. .........................161
Display message..................... 200, 203
Mixture ratio ................................... 280
Temperature gauge ...........................96
Cornering lamps................................... 79
Courtesy lights..................................... 82
Cruise control..................................... 113
Display message ............................. 208
Cup holder.......................................... 138 D
Dashboard see Instrument cluster
Date
Setting (on-board computer).......... .106
Daytime driving lights
see Constant headlamp mode
Delayed switch-off
Exterior lighting (on-board com-
puter). ............................................. 107
Interior lighting (on-board com-
puter). ............................................. 108
Diesel
Low outside temperatures. .............156
Diesel engine
Winter driving. ................................ 156
Differential locks.................................. 93
Digital speedometer.......................... 101Dipped-beam headlamps
Automatic headlamp mode. ..............76
Display message ............................. 204
Symmetrical. .................................. 177
Display message ................................ 194
Display messages Service display................................ 181
Symbol messages. ..........................199
Text messages. ............................... 195
Door
Automatic locking ............................. 55
Emergency locking .........................230
Emergency unlocking...................... 229
Opening (from the inside). ................55
Door control panel
Overview. .......................................... 28
Draught stop....................................... 135
Drinks holder
see Cup holder
Driver's airbag...................................... 37
Driver's seat Display message ............................. 208
Driver's seat position........................... 75
Driving abroad.................................... 177
Driving information Off-road .......................................... 173
Tyre ruts. ........................................ 177
Driving safety system.......................... 47
ABS. .................................................. 48 Index
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Engine compartment
161G 320 CDI
1
Cap
X Unscrew cap 1and remove it.
X Top up with the amount of oil required.
! Do not add too much oil. If too much oil
is added and the oil level is above the max-
imum mark on the dipstick, the engine or
catalytic converter could be damaged.
Have excess oil siphoned off.
X Screw cap 1onto the filler neck. H
Environmental note
When topping up the oil, take care not to
spill any. Oil must not be allowed to escape
into the soil or waterways. You would oth-
erwise be damaging the environment. Oil level in the automatic transmis-
sion
There is no need for you to check the oil level
in the automatic transmission. In the event of
oil loss or problems with gearshifts, have the
automatic transmission checked at a quali-
fied specialist workshop, e.g. at a Mercedes-
Benz Service Centre. Coolant
G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. This means the coolant
temperature gauge must display less than
70 °C. You could otherwise be scalded by
escaping hot coolant.
Coolant consists of water and antifreeze/cor-
rosion inhibitor. Only check the coolant level
when the vehicle is on a level surface and the
engine has cooled down. Checking the coolant level The expansion tank is located in the engine
compartment on the right-hand side of the
vehicle when viewed in the direction of travel.
1
Cap
X Slowly turn cap 1by half a turn in the
direction of the arrow to release excess
pressure.
X Unscrew cap 1completely and remove it.
X Turn cap 2further anti-clockwise and
remove it.
There is sufficient coolant in the expansion
tank if the coolant is level with the mark in
the expansion tank when the coolant is cold
or approximately 1.5 cm higher when hot. Operation
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Display
messages 203Display messages Possible cause/consequence Possible solution
Ï Coolant Stop car
Turn eng. off The coolant is too hot. X
Stop the vehicle. Pa y attention to traffic con-
ditions as you do so.
X Switch off the engine.
X Wait until the message disappears before
restarting the engine. Otherwise, there is a risk
of engine damage.
X Observe the coolant temperature gauge.
X If the temperature increases again, visit a quali-
fied specialist workshop immediately. Ï Coolant Stop car
Turn eng. off The poly-V-belt may have torn. X
Stop the vehicle. Pay attention to traffic con-
ditions as you do so.
X Switch off the engine.
X Check the poly-V-belt.
X If it has torn: do not drive on. Contact the
nearest qualified specialist workshop.
X If it is not damaged: do not start the engine
again until the message disappears. Other-
wise, there is a risk of engine damage. B Top up coolant See
Owner's Manual The coolant level is too low. X
Top up the coolant, observing the warning
notes before doing so (Y page 161).
X Have the coolant system checked at a qualified
specialist workshop if the coolant needs top-
ping up more often than usual. Practical advice
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Troubleshooting
221Problem Possible cause/consequence Suggested solutions
A coolant temperature of over
120 † is displa
yed. The coolant
warning lamp may also be on and
a warning tone may sound
(Y page 96). The coolant level is too low. The
coolant is too hot and the engine
is no longer being cooled suffi-
ciently. X
Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 161). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the
radiator fan may be faulty. The
coolant is too hot and the engine
is no longer being cooled suffi-
ciently. X
If the coolant temperature is less than 120 °C, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. Practical advice
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