engine MERCEDES-BENZ R-CLASS MPV 2008 Workshop Manual

Air conditioning
167
X
To deactivate: press the™button
(Y page 163).
MODE is shown in the display behind
the ) symbol.
X Press the ´button (Y page 163).
OFF is shown in the display behind
the ) symbol.
Activating and deactivating the rear-
compartment air conditioning via the
rear-compartment air-conditioning sys-
tem* X
Turn the key to position 2in the ignition
lock.
X Activate multi-zone Thermotronic*.
X To activate: press theUbutton.
The indicator lamp in the Ubutton
comes on.
X To deactivate: press the´button.
The indicator lamp in the ´button
comes on. Switching cooling with air-dehumidi-
fication on/off
The "cooling with dehumidification" function
is only available when the engine is running.
The air inside the vehicle is cooled and dehu-
midified according to the temperature selec-
ted. This prevents the windows from misting
up. G
Risk of accident
If the "cooling with air dehumidification"
function is deactivated, the air inside the
vehicle will not be cooled (during warm
weather) or dehumidified. The windows
could mist up more quickly. This may pre-
vent you from observing the traffic condi-
tions, thereby causing an accident. H
Environmental note
The cooling system uses the refrigerant
R134A. This refrigerant does not damage
the earth's ozone layer.
Condensation may drip from the underside of
the vehicle when Thermatic is in cooling
mode. X
To activate: press the9button.
The indicator lamp in the 9button lights
up.
X To deactivate: press the9button.
The indicator lamp in the 9button goes
out. The cooling with air dehumidification
function has a delayed switch-off feature. Controlling the air conditioning auto-
matically
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic air conditioning will achieve
optimal operation if "cooling with air dehu-
midification" is also activated. If necessary,
cooling with air dehumidification can be deac-
tivated. Cont
rols
* optional
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Air conditioning
174 moves. If there is a risk of entrapment,
press the :button again. Press the but-
ton for stopping, opening or closing the side
window in the opposite direction as appro-
priate.
Make sure that nobody can become trap-
ped when you open or close the sliding/
tilting sunroof*/panorama sliding sun-
roof*. If there is a risk of entrapment, press
the : button again. Press the button for
stopping, opening or closing the sliding/
tilting sunroof*/panorama sliding sun-
roof *in the opposite direction as appropri-
ate.
X Convenience closing: press and hold
the : button until the side windows and
the sliding/tilting sunroof*/panorama
sliding sunroof* have closed.
The indicator lamp in the :button
comes on. Air-recirculation mode is activa-
ted.
X Convenience opening: press and hold
the : button until the side windows and
the sliding/tilting sunroof*/panorama sliding sunroof* have reached their original
position.
The indicator lamp in the
:button goes
out. Air-recirculation mode is deactivated.
i If you open the side windows or the slid-
ing/tilting sunroof* or panorama sliding
sunroof* manually after closing using the
convenience closing feature, it will remain
in this position when opened using the con-
venience opening feature. Switching the residual heat on/off
It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the set interior temperature.
i The blower will run at a low speed regard-
less of the airflow setting.
i If you activate the "residual heat" function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed. X
Turn the key to position 0in the ignition
lock or remove it.
X To switch on: press the9button.
The indicator lamp in the 9button lights
up.
X To deactivate: press the9button.
The indicator lamp in the 9button goes
out.
i The residual heat automatically switches
off after around 30 minutes or if:
R the ignition is switched on
R the battery voltage drops Auxiliary heating/ventilation*
G
Risk of poisoning
Exhaust fumes are produced when the aux-
iliary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You
should therefore switch off the auxiliary
heating in confined spaces without an
extraction system, e.g. a garage. G
Risk of fire
When operating the auxiliary heating, parts
of the vehicle may become very hot, and Controls
* optional
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Air conditioning
175highly inflammable material such as fuels
could be ignited. Operating the auxiliary
heating is thus prohibited at filling stations
or when your vehicle is being refuelled. You
must therefore switch off the auxiliary heat-
ing at filling stations.
The auxiliary heating heats the air in the vehi-
cle interior to the set temperature without
using the heat of the running engine. The aux-
iliary heating is operated using fuel directly
from the vehicle's fuel tank. For this reason,
the tank content must be at least at reserve
fuel level to ensure that the auxiliary heating
functions.
The auxiliary heating/ventilation automati-
cally adjusts to changes in temperature and
weather conditions. For this reason, the aux-
iliary heating could switch from ventilation
mode to heating mode or from heating mode
to ventilation mode.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature.
Before activating X
Turn the key to position 2in the ignition
lock.
X Set the temperature. The auxiliary heating/ventilation can be acti-
vated even when the air conditioning is being
controlled manually. Optimum comfort can
be attained when the system is set to auto-
matic mode. Set the temperature to 22 †.
The auxiliary heating/ventilation can be acti-
vated or deactivated using the remote control
or the button on the centre console.
The on-board computer can be used to spec-
ify up to three departure times, one of which
may be preselected (Y page 135).
Switching the auxiliary heating/venti-
lation on/off using the centre console
button Centre console
1
X Auxiliary heating/ventilation The colours of the indicator lights on the but-
ton have the following meanings:
Blu
eA uxiliary ventilation activated
Red Auxiliary heating activated
Yello wDeparture time preselected
(Y page 134)
Activating the auxiliary heating/ventila-
tion
If the key is in position 1or 2:
X Press and hold the Xbutton for at least
two seconds.
The red or blue indicator lamp in the X
button lights up.
If the key is removed or in position 0:
X Briefly press the Xbutton.
The red or blue indicator lamp in the X
button lights up.
Deactivating the auxiliary heating/venti-
lation
X Briefly press the Xbutton.
The red or blue indicator lamp in the X
button goes out. Controls
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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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Loading and stowing
187
Luggage net behind the front seats
1
Luggage net Loading guidelines
G
Risk of injury
Secure and position the load as described
in the loading guidelines.
Otherwise, vehicle occupants could
be injured by the load being thrown around
in the event of sharp braking, a sudden
change in direction or an accident. This also
applies to seats which have been removed.
You will find further information in the
"Securing a load" section. Even if you follow all the loading guidelines,
the load will increase the risk of injury in the
event of an accident.
G
Risk of poisoning
Keep the tailgate closed when the engine is
running. Otherwise, you could be poisoned
by exhaust fumes entering the vehicle.
The handling characteristics of a laden vehi-
cle are dependent on the distribution of the
load within the vehicle. You should therefore
load your vehicle as shown in the illustrations. Load distribution
Observe the following notes when transport-
ing a load:
R
When transporting a load, never exceed the
maximum permissible gross vehicle weight Controls
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Features
2071
Cover
2 Socket protective cap
X Open cover 1(Ypage 202).
X Remove protective cap 2from the socket.
i On vehicles with the smoker's package*,
a cigarette lighter is fitted instead of the
socket (Y page 206).
Socket in the 2nd row of seats !
If accessories are connected, make sure
that a maximum current draw of 20 A is not
exceeded. Otherwise, you will overload the
fuse. X
Fold up the socket cover.
i You can also use the socket when the
ignition is switched off. An emergency cut-
out ensures that the on-board voltage does
not drop too low. If the on-board voltage is
too low, the power to the sockets is auto-
matically cut. This ensures that there is
sufficient power to start the engine.
Socket in the luggage compartment !
If accessories are connected, make sure
that a maximum current draw of 20 A is not
exceeded. Otherwise, you will overload the
fuse. The socket is located in the luggage compart-
ment on the right-hand side trim.
X
Fold up the socket cover.
i You can also use the socket when the
ignition is switched off. An emergency cut-
out ensures that the on-board voltage does
not drop too low. If the on-board voltage is
too low, the power to the sockets is auto-
matically cut. This ensures that there is
sufficient power to start the engine. Controls
* optional
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Features
215
X
Use æ orç on the multi-function
steering wheel to select the Vehiclesub-
menu.
X Keep pressing jork until the Com-
pass setting Zone message appears.
The selection marker highlights the current
setting. X
Use æ orç to set the geographical
location.
Calibrating the compass You will only see this function if Audio 20 is
installed in your vehicle.
In order to calibrate the compass correctly,
observe the following points:
R find a suitable place where you can drive
the vehicle a full circle.
R calibrate the compass in the open and not
in the vicinity of steel constructions or high-
voltage transmission lines. R
switch off electric consumers, e.g.
Thermati c/multi-zone Thermotronic*,
windscreen wipers or rear window heating.
R close all doors and the tailgate.
X Start the engine.
X Use æ orç on the multi-function
steering wheel to select the Vehiclesub-
menu.
X Keep pressing jork until the Com-
pass calibration message appears.
The selection marker highlights switched
off . X
Use æ orç to select Start.
In the multi-function display, you will see
the Compass calibration active
Please drive a full circle message.
X Drive the vehicle a full circle at approxi-
mately 5 – 10 km/h.
When calibration is completed, you will see
the following message in the multi-function display:
Compass calibration Comple-
ted successfully
If you do not see the Compass calibration
Completed successfully message in the
multi-function display, drive another full cir-
cle. If calibration is not successful within
three minutes of it starting, the Compass
calibration message will appear in the
multi-function display again. This means that
compass calibration is impossible because of
external interference. Repeat calibration at
another location. Floormat* on the driver's side
G
Risk of accident
Make sure that there is sufficient clearance
around the pedals when floormats are
used, and that the floormats are properly
secured.
The floormats must be secured at all times
using retainers and studs.
Before you drive off, make sure that the
floormats are secure and rectify if neces-
sary. A floormat which is not properly
secured can slip and thereby interfere with
the movement of the pedals. Controls
* optional
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217
Running-in notes
............................... 218
Refuelling ........................................... 218
Engine compartment ........................220
Tyres and wheels .............................. 224
Winter driving ................................... 231
Driving tips ........................................ 232
Driving abroad ................................... 235
Trailer towing* .................................. 235
Service ............................................... 242
Care .................................................... 243 Operation
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Refuelling
218 Running-in notes
The first 1,500 km
If you treat the engine with sufficient care
from the very start, you will be rewarded with
excellent performance for the remainder of
the engine's life.
R You should therefore drive at varying road
and engine speeds for the first 1,500 km.
R Avoid heavy loads, e.g. driving at full throt-
tle, during this time. Do not exceed 2
/ 3 of
the maximum permissible engine speed for
each gear.
R Change gear in good time.
R Do not shift down a gear manually in order
to brake.
R Try to avoid depressing the accelerator
pedal beyond the pressure point (kick-
down).
R Only use ranges 3,2or 1for slow driving,
e.g. in mountainous terrain.
After 1,500 km you may gradually bring the
vehicle up to full road and engine speeds. Refuelling
Refuelling
G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine and the auxiliary heat-
ing* before refuelling. G
Risk of injury
Avoid any contact with fuels.
You can damage your health if your skin
comes into direct contact with fuel or if you
inhale fuel vapours. G
Risk of fire
Do not use petrol to refuel vehicles with a
diesel engine. Never mix diesel with petrol.
This causes damage to the fuel system and
engine and could result in the vehicle catch-
ing fire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Even a small
quantity of the wrong fuel will damage the
injection system. Damage resulting from adding the wrong fuel is not covered by the
warranty.
! Do not start the engine if you accidentally
refuel with the wrong fuel. Otherwise, the
fuel could enter the fuel lines. This would
require draining of the fuel tank and fuel
lines. Notify a qualified specialist workshop
and have the fuel tank and fuel lines
drained completely.
When you open or close the vehicle with the
key or KEYLESS GO*, the fuel filler flap is
automatically unlocked or locked.
The fuel filler flap is to the rear on the right. 1
To open the fuel filler flap
2 To insert the fuel cap
3 Fuel type
4 Tyre pressure table Operation
* optional
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Refuelling
219
X
Remove the key from the ignition lock.
X To open: press the fuel filler flap in the
direction of arrow 1.
The fuel filler flap opens slightly.
X Open the fuel filler flap.
X Turn the fuel filler cap to the left and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap 2.
X Only fill the tank until the pump nozzle
switches off.
! Overfilling the tank could damage the fuel
system.
X To close: replace the fuel filler cap and turn
it clockwise. The fuel filler cap audibly
engages.
X Close the fuel filler flap.
i Vehicles with a diesel engine:
If the tank has been run completely dry, it
will be necessary to bleed the fuel system
(Y page 289). Petrol (EN 228)
! Refuel using only unleaded premium
grade petrol with a minimum octane num-
ber of 95 RON/85 MON conforming to
European standard EN 228.
You could otherwise impair engine output
or damage the engine.
You will find further information about pet-
rol under "Fuel" in the index.
i As a temporary measure, but only when
the recommended fuel is not available, you
may also use regular unleaded petrol,
91 RON/82.5 MON. This may reduce per-
formance and increase petrol consump-
tion. Avoid driving at full throttle.
In some countries, the available petrol qual-
ity may not be sufficient and could cause
coking around the inlet valve. In such
cases, and in consultation with a
Mercedes-Benz Service Centre, the petrol
may be mixed with the additive recommen-
ded by Mercedes-Benz (part no.
A000989254510). You must observe the
notes and mixing ratios given on the con-
tainer. Diesel (EN 590)
! Only use diesel that complies with the
EN 590 European standard.
You could otherwise impair engine output
or damage the engine.
You will find further information about die-
sel under "Fuel" in the index.
! When refuelling vehicles with a diesel par-
ticle filter in countries outside the EU, only
low-sulphur Euro diesel with less than
0.005 percent sulphur content by weight
should be used. In countries in which diesel
with a higher sulphur content is available
(e.g. 0.035 percent by weight), the engine
oil should be renewed at more frequent
intervals. More information about intervals
for changing the engine oil can be obtained
from any Mercedes-Benz Service Centre.
! Using fuel that does not comply with EN
590 can increase wear and damage the
engine and the exhaust system.
Do not use the following:
R marine diesel
R heating oil Operation
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