5
Side window
s.. . . . . . . . . . . . . . . .249
Trailer tow hitch . . . . . . . . . . . . . . .252
CD player/CD changer
Operation (on-board computer) . . .124
Central locking
Automatic locking (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .132
Key . . . . . . . . . . . . . . . . . . . . . . . . . .66
KEYLESS GO . . . . . . . . . . . . . . .68, 69
Central locking/unlocking button . ..74
Central unlocking Key . . . . . . . . . . . . . . . . . . . . . . . . . .66
KEYLESS GO . . . . . . . . . . . . . . .68, 69
Changing a wheel
see Flat tyre
Checklist (off-road driving) . . . . . . ..236
Child-proof locks Rear doors . . . . . . . . . . . . . . . . . . . .56
Side windows (rear) . . . . . . . . . . . . .56
Children
in the vehicle . . . . . . . . . . . . . . . . . .48
Restraint systems . . . . . . . . . . . . . .48
Child seat
Automatic recognition . . . . . . . . . . .50
Automatic recognition (malfunc-
tion) . . . . . . . . . . . . . . . . . . . . . . . .287
Child seat lock . . . . . . . . . . . . . . . .53
ISOFIX . . . . . . . . . . . . . . . . . . . . . . .53
On the front-passenger seat . . . . . .49
Recommendation s.. . . . . . . . . . . . .53Suitable positions . . . . . . . . . . . . .
.51
TopTether . . . . . . . . . . . . . . . . . . . . .54
Child seat lock . . . . . . . . . . . . . . . . . . .53
Cigarette lighter . . . . . . . . . . . . . . . .204
Cockpit Overview . . . . . . . . . . . . . . . . . . . . .22
Collapsible wheel
Technical data . . . . . . . . . . . . . . . .359
COMAND . . . . . . . . . . . . . . . . . . . . . . .118
On-board computer . . . . . . . . . . . .118
see separate Operating Instructions
Compass . . . . . . . . . . . . . . . . . . . . . . .210
Display message . . . . . . . . . . . . . .264
Constant headlamp mode
Setting (on-board computer) . . . . .130
Consumption statistics (on-board
computer) . . . . . . . . . . . . . . . . . . . . . .136
Convenience closing . . . . . . . . . . . ..102
Coolant . . . . . . . . . . . . . . . . . . . . . . . .223
Checking the level . . . . . . . . . . . . .223
Display message . . . . . .269, 274, 275
Mixture ratio . . . . . . . . . . . . . . . . .370
Temperature gauge . . . . . . . . . . . .120
Cornering light
Display message . . . . . . . . . . . . . .275
Cruise control . . . . . . . . . . . . . . . . . .145
Display message . . . . . . . . . .267, 268
Cup holder . . . . . . . . . . . . . . . . . . . . .190 D
Dashboard see Cockpit
see Instrument cluster
Date
Setting (on-board computer) . . . . .129
Daytime driving lights
see Constant headlamp mode
Delayed switch-off
Exterior lighting (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .131
Interior lighting (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .131
Diesel
Low outside temperatures . . . . . . .218
Diesel engine
Winter driving . . . . . . . . . . . . . . . . .218
Differential locks . . . . . . . . . . . . . . ..143
Display message . . . . . . . . . .272, 273
Digital speedometer . . . . . . . . . . . ..120
Setting the unit (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .129
Dipped-beam headlamps
Display message . . . . . . . . . . . . . .275
Symmetrical . . . . . . . . . . . . . . . . . .240
Display message . . . . . . . . . . . . . . ..259
Service indicator . . . . . . . . . . . . . .246
Symbol messages . . . . . . . . . . . . .268 Index
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Occupant safety
41carry out any modifications on the restraint
systems.
Never tamper with electronic components
and their software.
SRS (Supplemental Restraint System)
The SRS reduces the risk of occupants com-
ing into contact with the vehicle's interior in
the event of an accident. It can also reduce
the forces to which occupants are subjected
during an accident.
The SRS consists of:
R The 1 warning lamp
R belt tensioners
R belt force limiters
R airbags
The 1 1 warning lamp The SRS functions are checked regularly
when you turn on the ignition and when the
engine is running. Malfunctions can therefore
be detected in good time.
The
1 warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started. G
Risk of injury
If SRS is malfunctioning, individual systems
may be activated unintentionally or not be
deployed in the event of an accident with
heavy braking.
A malfunction has occurred if the 1
warning lamp:
R does not light up when you switch on the
ignition
R does not go out after the engine has been
running for a few seconds
R lights up again once the engine is running
In this case, have SRS checked immedi-
ately at a qualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags In the event of a collision, the sensor in the
airbag control unit evaluates important phys-
ical data such as duration, direction and force
of the vehicle deceleration or acceleration.
Based on the evaluation of this data and
depending on the vehicle's rate of longitudi-
nal deceleration in a collision, in the first
stage the airbag control unit pre-emptively
triggers the belt tensioners.i
The front belt tensioners can only be trig-
gered if the belt tongue is correctly
engaged in the seat belt buckle.
The front airbags are only deployed if there is
an even higher rate of vehicle deceleration in
a longitudinal direction.
Your vehicle has adaptive, dual stage front
airbags. When the first activation threshold is
reached, the front airbag is filled with enough
propellant gas to reduce the risk of injuries.
The front airbag is only fully inflated if a sec-
ond threshold is reached within a few milli-
seconds, due to the control unit having
detected further deceleration.
Criteria for triggering belt tensioners and
airbags
In the first stage of a collision, the airbag con-
trol unit evaluates the duration and direction
of vehicle acceleration or deceleration in
order to determine whether it is necessary to
trigger the belt tensioner and/or airbag.
The belt tensioner and airbag triggering
thresholds are variable and are adapted to the
rate of deceleration of the vehicle. This proc-
ess is pre-emptive in nature as the airbag
must be deployed during – and not at the end
of – the collision. Safety
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Lights
97Interior lighting
Front overhead control panel
1 X To switch the left-hand reading lamp
on/off
2 ¦ To switch the rear interior lighting
on/off
3 ¥ To switch the automatic interior
lighting control on/off
4 ð To switch the front interior lighting
on/off
5 X To switch the right-hand reading
lamp on/off Automatic interior lighting control
X
To switch on/off: press the¥button.
The ¥ button pops up or goes down.
The interior lighting switches on when you:
R unlock the vehicle
R open a door
R remove the key from the ignition lock
The interior lighting switches off after a delay.
You can set the delayed switch-off using the
on-board computer (Y page 131).
i If the door is left open, the interior lighting
goes out after approximately five minutes.
Emergency accident lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
X To deactivate: press the hazard warning
lamp button (Y page 95).
or
X Unlock the vehicle using the key.
or
X Press the ¥button (Y page 97). Manual control
Front interior lighting
X
To switch on/off: press theðbutton.
Rear-compartment interior lighting
X To switch on/off: press the¦button.
Reading lamps
X To switch on/off: press theXbutton. Controls
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Air conditioning
172 Function Recommendation/Notes
5 {
Directs the airflow through the demister vents (Y
page 181) 6 9
Activates/deactivates cooling with air dehumidifi-
cation i
Switch on the air conditioning with air-dehumidifica-
tion function. The indicator lamp in the 9button
lights up. (Y
page 177) 9
Switches the residual heat function on/off i
You can use the residual heat to heat or ventilate the
vehicle interior after you have switched off the ignition. (Y
page 183) 7 Sets the temperature, right i
Set the temperature to 22 †. (Y
page 178) 8 <
Switches the rear-compartment air-conditioning
on/off (Y
page 176) 9 a
Directs the airflow through the centre and side air
vents (Y
page 181) a Y
Directs the airflow to the footwells and side air
vents (Y
page 181) b Displays the airflow level
c ·
Reduces the airflow (Y
page 181) d 1
Switches the rear window heating on/off i
At very low temperatures, the rear window heating is
only switched on once the vehicle interior has warmed
up. (Y
page 182) e :
Activates/deactivates air-recirculation mode i
Only use this operating mode for a short time, e.g. in
a tunnel. Otherwise, the windows could mist up due to
lack of fresh air. (Y
page 182) Cont
rols
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Air conditioning
175Function Recommendation/Notes
d 9
Activates/deactivates cooling with air dehumidifi-
cation i
Switch on the air conditioning with air-dehumidifica-
tion function. The indicator lamp in the 9button
lights up. (Y
page 177) 9
Switches the residual heat function on/off i
You can use the residual heat to heat or ventilate the
vehicle interior after you have switched off the ignition. (Y
page 183) e Display
f ·
Reduces the airflow (Y
page 181) g :
Activates/deactivates air-recirculation mode i
Only use this operating mode for a short time, e.g. in
a tunnel. Otherwise, the windows could mist up due to
lack of fresh air. (Y
page 182) h 7
Directs the airflow through the centre and side air
vents, left (Y
page 181) j 8
Directs the airflow to the footwells and side air
vents, left (Y
page 181) k Interior temperature sensor
l ;
MONO function i
The settings made for the driver's side are adopted in
three air-conditioning zones. (Y
page 181) Cont
rols
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Air conditioning
182
or
X
Press the Ubutton.
or
X Turn the thumbwheels for the temperature
clockwise or anti-clockwise.
or
X Press the Qor· button. Demisting the windows
Windows misted up on the inside X
Activate the "cooling function with air-
dehumidification" function.
X Activate the automatic mode.
X If the windows continue to mist up, activate
the "demisting" function.
Windows misted up on the outside X
Activate the windscreen wipers.
X Press the a/7orY/ 8air
distribution button.
i You should only select this setting until
the windscreen is clear again. Switching the rear window heating
on/off G
Risk of accident
Clear all windows of ice or snow before set-
ting off. Impaired visibility could otherwise
endanger you and others.
i At very low temperatures, the rear win-
dow heating is only switched on once the
vehicle interior has warmed up.
i The rear window heating has a high cur-
rent draw. You should therefore switch it
off as soon as the window is clear, as it only
switches off automatically after several
minutes.
i If the battery voltage is too low, the rear
window heating may switch off.
X Turn the key to position 2in the ignition
lock.
X Press the 1button.
The indicator lamp in the 1button lights
up or goes out. Activating/deactivating air-recircula-
tion mode
You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated. G
Risk of accident
Only switch over to air-recirculation mode
briefly at low outside temperatures. Other-
wise, the windows could mist up, thus
impairing visibility and endangering your-
self and others. This may prevent you from
observing the traffic conditions, thereby
causing an accident.
X Turn the key to position 2in the ignition
lock.
X To activate: press the:button.
The indicator lamp in the :button
comes on.
i Air-recirculation mode is activated auto-
matically at high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp in
the : button is not lit.
Outside air is added after about 30
minutes. Cont
rols
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Air conditioning
183
X
To deactivate: press the:button.
The indicator lamp in the :button goes
out.
i Air-recirculation mode switches off auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
5 †
R after approximately five minutes if cool-
ing with air dehumidification is deactiva-
ted
R after approximately 30 minutes at out-
side temperatures above approximately
5 †
Air-recirculation mode with the conve-
nience opening/closing feature G
Risk of injury
Make sure that nobody can become trap-
ped between the side window and the door
frame as the side windows are opened and
closed. Do not place objects or lean against
the side window when it is being opened or
closed. You or the objects could be drawn
in or become trapped between the side
window and the door frame as the window 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 are opening or closing the
sliding/tilting sunroof*. If there is a risk of
entrapment, press the :button again.
Press the button for stopping, opening or
closing the sliding/tilting sunroof* in the
opposite direction as appropriate.
X Convenience closing: press and hold
the : button until the side windows and
the sliding/tilting 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* 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* manually after closing
using the convenience closing feature, it will remain in this position when opened
using the convenience 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. Cont
rols
* optional
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Air conditioning
184
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
highly 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 133).
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 132) Controls
* optional
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