2008 MERCEDES-BENZ R-CLASS MPV coolant temperature

5
CD player/CD changer
Operation (on-board computer) . . .126
Central locking
Automatic locking (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .134
Key . . . . . . . . . . . . . . . . . . . . . . . . . .68
KEYLESS GO . . . . . . . . . . . . . . .70, 71
Central locking/unlocking button . ..75
Central unlocking Key . . . . . . . . . . . . . . . . . . . . . . . . . .68
KEYLESS GO . . . . . . . . . . . . . . .70, 71
Centre console
2nd row of seats . . . . . . . . . . . . . .195
Changing a wheel
see Flat tyre
Child-proof locks
Rear doors . . . . . . . . . . . . . . . . . . . .57
Side windows (rear) . . . . . . . . . . . . .57
Children
in the vehicle . . . . . . . . . . . . . . . . . .47
Restraint systems . . . . . . . . . . . . . .48
Child seat
Automatic recognition . . . . . . . . . . .50
Automatic recognition (malfunc-
tion) . . . . . . . . . . . . . . . . . . . . . . . .280
Child seat lock . . . . . . . . . . . . . . . .54
ISOFIX . . . . . . . . . . . . . . . . . . . . . . .54
On the front-passenger seat . . . . . .49
Recommendation s.. . . . . . . . . . . . .53Suitable positions . . . . . . . . . . . . .
.51
TopTether . . . . . . . . . . . . . . . . . . . . .56
Child seat lock . . . . . . . . . . . . . . . . . . .54
Cigarette lighter . . . . . . . . . . . . . . . .206
Cockpit Overview . . . . . . . . . . . . . . . . . . . . .22
COMAND . . . . . . . . . . . . . . . . . . . . . . .123
On-board computer . . . . . . . . . . . .123
see separate Operating Instructions
Compass . . . . . . . . . . . . . . . . . . . . . . .212
Display message . . . . . . . . . . . . . .260
Constant headlamp mode
Setting (on-board computer) . . . . .132
Consumption statistics (on-board
computer) . . . . . . . . . . . . . . . . . . . . . .137
Convenience closing . . . . . . . . . . . ..108
Coolant . . . . . . . . . . . . . . . . . . . . . . . .223
Checking the level . . . . . . . . . . . . .223
Display message . . . . . .265, 269, 270
Mixture ratio . . . . . . . . . . . . . . . . .360
Temperature gauge . . . . . . . . . . . .125
Cornering light
Display message . . . . . . . . . . . . . .270
Cruise control . . . . . . . . . . . . . . . . . .140
Display message . . . . . . . . . .263, 264
Cup holder . . . . . . . . . . . . . . . . . . . . .183 D
Dashboard see Cockpit
see Instrument cluster
Date
Setting (on-board computer) . . . . .131
Daytime driving lights
see Constant headlamp mode
Delayed switch-off
Exterior lighting (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .133
Interior lighting (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .133
Diesel
Low outside temperatures . . . . . . .220
Diesel engine
Winter driving . . . . . . . . . . . . . . . . .220
Digital speedometer . . . . . . . . . . . ..125
Setting the unit (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .131
Dipped-beam headlamps
Display message . . . . . . . . . . . . . .270
Symmetrical . . . . . . . . . . . . . . . . . .235
Display message . . . . . . . . . . . . . . ..255
Service indicator . . . . . . . . . . . . . .242
Symbol messages . . . . . . . . . . . . .264
Text messages . . . . . . . . . . . . . . . .256 Index
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On-board computer
124 Function
1 Basic display
menu (Ypage 125)
R Tyre pressure loss warning system
(Y page 227) or tyre pressure mon-
itor* (Y page 228)
R Coolant temperature (Y page 125)
R Digital speedometer 19
or outside
temperature (Y page 125).
R ASSYST PLUS service interval dis-
play (Y page 242) 2
Audio/TV*/DVD*
menu
(Y page 126)
R Radio station ( Ypage 126)
R Audio drive or media*
(Y page 126)
R TV* (Y page 127)
R DVD video* (Y page 127) 3
Navigation*
menu (Ypage 127) Function
4
AIRMATIC*/compass*
menu
(Y page 128)
R Level control* (Y page 152)
R Compass display *(Y page 212) 5
Distronic
* menu (distance display)
(Y page 128) 6
Message memory
menu20
(fault and
warning messages) (Y page 128) 7 Settings
menu (Ypage 129)
R Resetting to factory settings
(Y page 129)
R Selecting a submenu (Y page 129) 8
Additional functions*
menu
(Y page 136)
R Distance warning sys-
tem* (Y page 136)
R Tow-away protec-
tion* (Y page 136)
R Interior motion sen-
sor* (Y page 137) Function
9 Trip computer
menu (Ypage 137)
R Consumption statistics
(Y page 137)
R Range (Y page 138) a Telephone
menu (Ypage 138) This is what the displays look like when you
scroll through the menus.
The generic terms in the table overview are
intended to help you navigate through the
menus. The terms themselves are not always
displayed in the multi-function display.
Depending on the audio system fitted, the
Audio,
Navigation* and Telephonemenus
are slightly different. The examples given in
this Owner's Manual apply to vehicles equip-
ped with COMAND APS*.
19 Vehicles for the United Kingdom: the outside temperature is always displayed.
20 This menu is only visible if there is a display message available. Controls
* optional
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On-board computer
125Standard display menu
i Menu overview: (Y page 123).
Use the buttons on the multi-function steer-
ing wheel.
X Press the èor· button to select the
standard display. Standard display
1
Trip meter
2 Total distance recorder
You can select the following functions in the
Basic display menu by pressing the jor
k button:
R tyre pressure loss warning system
(Y page 227) or tyre pressure moni-
tor* (Y page 228)
R coolant temperature (Y page 125)R
digital speedometer or outside tempera-
ture (Y page 131)
R ASSYST PLUS service interval display
(Y page 242)
Displaying the coolant temperature X
Press the èor· button to select the
standard display.
X Press the jork button to select the
coolant temperature. Under normal driving conditions, with the cor-
rect anti-corrosion and antifreeze additive
concentration, the reading may rise to
120 †.
Displaying the digital speedometer or
outside temperature
If you have selected the digital speedometer
for Status line (Y
page 131), you can switch the display to the outside temperature
here
21
.
X Press the èor· button to select the
standard display.
X Press the jork button to select the
digital speedometer or the outside temper-
ature. Digital speedometer
Outside temperature
21 Vehicles for the United Kingdom: the outside temperature is always displayed. Controls
* optional
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Sliding sunroof
178
Heater booster function on vehicles
with a diesel engine The heater booster function helps the engine
to reach its operating temperature faster dur-
ing its warm-up phase, as well as helping to
heat the vehicle interior faster. The heater
booster function switches on if outside tem-
peratures are low and the coolant tempera-
ture is less than 70 †. Sliding sunroof
Sliding/tilting sunroof*
G
Risk of injury
Children could injure themselves if they
operate the sliding/tilting sunroof.
Never leave children unsupervised in the
vehicle. Always take the KEYLESS–GO
key* with you when leaving the vehicle,
even if you are only leaving it for a short
time. G
Risk of injury
Make sure that nobody can become trap-
ped when you are opening and closing the
sliding/tilting sunroof. If there is a risk of
entrapment, release the switch and push it
briefly in any direction to stop the sliding/
tilting sunroof. G
Risk of injury
The glass in the sliding/tilting sunroof
could break in an accident. If you are not
wearing a seat belt, there is a risk that you
could be thrown through the opening in the
event of the vehicle overturning. Therefore,
always wear a seat belt to reduce the risk
of injuries. !
Only open the sliding/tilting sunroof if it
is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the
sliding/tilting sunroof. The seals could oth-
erwise be damaged.
i Resonance noises can occur in addition
to the usual airflow noises when the slid-
ing/tilting sunroof is open. They are caused
by minor pressure fluctuations in the vehi-
cle interior.
Change the position of the sliding/tilting
sunroof or open a side window slightly to
reduce or eliminate these noises.
i It is also possible to open and close the
sliding/tilting sunroof from the outside
using the "Summer opening" (Y page 108)
and "Convenience closing" (Y page 108)
features respectively.
When PRE-SAFE ®
* has been activated, the
sliding/tilting sunroof closes automatically in
the event of danger, leaving a small gap open. Controls
* optional
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Engine compartment
223H
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. Coolant
G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. 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
2 Expansion tank
3 Marker bar
X Slowly turn cap 1by half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap 1further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 2if the coolant is level with the
marker bar 3in the filler neck when cold
or approximately 1.5 cm higher when hot. X
Top up the coolant if necessary.
X Replace cap 1and tighten all the way to
the stop.
You will find further information about coolant
in the "Technical data" section
(Y page 360). Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir is located in the
engine compartment on the right when
viewed in the direction of travel. The head-
lamp cleaning system is also supplied from
the washer fluid reservoir. 1
Cap
2 Washer fluid reservoir Operation
* optional
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Display
messages 265Display messages Possible cause/consequence Possible solution
$ At least one door is open. X
Close the doors. D The cooling fan for the coolant is faulty. X
If the coolant temperature is less than 120 †,
you can continue driving to the nearest quali-
fied specialist workshop.
X In doing so, avoid heavy loads on the engine
(e.g. driving in mountainous terrain) and stop-
and-go driving. # The battery is not being charged. Possible
causes are:
R
a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics X
Stop immediately and safely when traffic con-
ditions allow and 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: have the vehicle checked
immediately at a qualified specialist workshop. # Battery/Alternator
Stop vehicle The battery is faulty. X
Pull over as soon as it is safe to do so.
X Do not continue driving under any circumstan-
ces.
X Consult the nearest qualified specialist work-
shop. 2 Brake wear The brake pads/linings have reached
their wear limit. X
Have the brake pads/linings replaced as soon
as possible at a qualified specialist workshop. Practical advi
ce
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Display
messages 269Display messages Possible cause/consequence Possible solution
D Coolant Stop car,
turn engine off The coolant is too hot. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Switch off the engine.
X Make sure that the airflow to the radiator is not
blocked, e.g. by snow, slush or ice.
X Wait until the message disappears before
restarting the engine. There is otherwise a risk
of engine damage.
X Observe the coolant temperature gauge
(Y page 125).
X If the temperature increases again, visit a quali-
fied specialist workshop immediately. D Coolant Stop car,
turn engine off The poly-V-belt may have torn. X
Stop the vehicle. Pay attention to the traffic
conditions 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. There is
otherwise a risk of engine damage. Practical advi
ce
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Troubleshooting
291Problem Possible cause/consequence Suggested solutions
Vehicles with a petrol engine:
The engine is not running
smoothly and is misfiring. There is a malfunction in the
engine electronics or a mechani-
cal component of the engine con-
trol unit. X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist work-
shop.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it. A coolant temperature of over
120 °C is displayed. You also
hear a warning signal. 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 223). 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. The engine does not switch off. The ignition lock is faulty. X
Open the fuse box in the engine compartment ( Ypage 334).
X Remove fuse 120 using the fuse extractor.
The engine stops.
If you wish to start the engine again:
X Replace the fuse. Practical advice
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