157
Air conditioning
Controls
This overview will help you become quickly familiar with the controls for the air conditioner.
Fig. 130 Air conditioner controls
The left-hand display shows the temperature selected for the left-hand side
and the right-hand display the temperature for the right-hand side.
The functions can be switched on or off by briefly pressing the buttons. The
diode on the buttons lights up when the function is enabled.
The grille between buttons
and must be kept clear, as the tempera-
ture sensors are located behind the grille.
● Do not cover the grille.
● Do not clean the grille with a vacuum cleaner, as this could damage the
temperature sensors located behind the grille.
Button(s)Meaning
Automatic mode
(left and right)Temperature selection for driver and passenger
sides
Defrost
Manual air recirculation mode
Switches off air cooling
Switches off air conditioner (instead of )
Automatic air recirculation mode (instead of OFF)
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
158Air conditioning
Button(s)Meaning
(in the centre)Adjusts blower speed
Air to the windows
Air from the dashboard outlets
Air to the footwells
The , and buttons (which regulate air distribution) can either be
selected individually or in combination.
Automatic mode AUTO
Standard setting for all seasons.
Switching on automatic mode
– Select a temperature between +18 °C (64 °F) and +29 °C (86 °F).
– Press the AUTO
⇒
fig. 130 button.
The automatic mode maintains a constant temperature inside the vehicle
and dehumidifies the air. Air temperature, air delivery and air distribution
are regulated automatically to reach the desired interior temperature as
quickly as possible, and then to maintain this temperature. The system au-
tomatically compensates for any variations in the outside temperature and
for the effect of direct sunlight.
The automatic temperature regulation only operates at temperature settings
between +18 °C and +29 °C. If a temperature below +18 °C is selected, LO
appears on the display. If a temperature is selected which is higher than
+29 °C, the display will show HI. In the maximum and minimum settings,
the climate control operates continuously with maximum cooling or heating output and the temperature is not regulated automatically. The temperature
is not regulated.
Note
By keeping the AUTO button on the driver side pressed for several seconds,
the temperature of the passenger side can be set to the temperature of the
driver side or vice versa. The display indicates the new temperature value.
Selecting the temperature -
+
Separate temperatures can be selected for the driver and
front passenger sides.
– Press the -
or + buttons below the displays
⇒ fig. 130 until the
desired temperature is selected for the driver side or front pas-
senger side.
The currently selected temperature setting is shown in the display above
the buttons.
By keeping the AUTO
button on the driver side pressed for several seconds,
the temperature of the passenger side can be set to the temperature of the
driver side or vice versa. The display indicates the new temperature value.
The previous temperature setting can be restored by resetting the display
on the driver or passenger side as required.
159
Air conditioning
Defrosting
The windscreen and side windows are defrosted or demisted
as quickly as possible.
– To enable this mode, press the
⇒
fig. 130 button.
– To switch off, press the
button again, or select the AUTO but-
ton.
The temperature is regulated automatically. The air output is increased to
maximum and most of the air comes out of outlets 1 and 2 ⇒ page 162.
The air recirculation and ECON modes are switched off when the
button
is pressed.
Air recirculation: manual activation
The air recirculation setting prevents fumes etc. from enter-
ing the interior.
Activating air recirculation mode
– Press button
⇒ fig. 130 ⇒ .
Deactivating air recirculation mode
– Press the
button again or
– Press the AUTO
button or
– Press button
.
In this setting, the air in the vehicle is constantly recirculated. We recom-
mend using the air recirculation mode in the following circumstances: ●
When driving through a tunnel or in traffic congestions, to prevent ex-
haust gas entering the interior of the vehicle.
WARNING
Do not drive for too long with the air recirculation mode enabled because,
if the compressor is disconnected, the windscreen may mist up because
no fresh air is entering the interior of the vehicle, with the subsequent
risk of accidents.
ECON Mode (economy) ECON
ECON mode helps save fuel.
– To activate, press the ECON
button ⇒ fig. 130.
– To deactivate, press the ECON
button again or select the AUTObutton.
Air cooling is disconnected in ECON mode. The heating and the blower are
adjusted automatically. “ECON” stands for “Economy”. Disconnecting air
cooling (compressor) reduces fuel consumption.
Please note that the interior temperature must not be lower than the outside
temperature in ECON mode. The blower does not cool or dehumidify the air
in the interior. The windows could therefore mist up.
In diesel vehicles, the auxiliary heater is switched off in ECON mode to save
fuel.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
160Air conditioning
Note
If the diode on the ECON button continues to light up when the ECON mode
has been switched off (i.e. the air conditioner has been switched on) this is
due to a defect in one of the air conditioner components. If a malfunction
should occur, please contact a specialised workshop.
Air recirculation: automatic activation*
If the outside air is polluted by diesel and petrol emissions,
an air quality sensor in the vehicle will automatically switch
on the air recirculation.
Fig. 131 Button for auto-
matic air recirculation
Activating air recirculation mode
– Press the button
⇒ fig. 131.
Deactivating air recirculation mode
– Press the
button again or –
Press the AUTO
button or
– Press button
.
The automatic air recirculation mode should normally be left switched on at
all times.
The system is ready to operate approx. 30 seconds after the engine ignition
key has been turned. During this initial period, fresh air is fed into the vehi-
cle.
If the air purity sensor in the air conditioner detects a certain concentration
of fumes in the outside air, the control unit will either pass the incoming air
through the pollution filter or automatically switch on the air recirculation. If
there is a high concentration of pollution in the outside air, the air condi-
tioner automatically switches to air recirculation and the supply of air from
the outside is cut off. As soon as the level of pollution decreases, air is fed
into the vehicle from the outside again.
The automatic air recirculation operates for a maximum period of 12 mi-
nutes. If the windows mist up when the automatic air recirculation is on,
press the
button immediately.
The automatic air recirculation switches itself off under certain circumstan-
ces (for instance if
or is selected). In “ECON” and at temperatures
lower than approx. 8 °C below zero, the automatic air recirculation mode is
limited to 12 seconds.
161
Air conditioning
Switching the temperature display from °C to °F and vice
versa
The temperature display can be switched from °C (degrees
Celsius) to °F (degrees Fahrenheit) and vice versa. – Press and hold the
button for air recirculation mode and
briefly press the plus button of the left-hand temperature selec-
tor ⇒ fig. 130.
Switching the air conditioner on/off
Switching the air conditioner off: models with an OFF button
– Press the OFF
button. The air conditioner is switched off and
the supply of air from outside the vehicle is cut off.
Switching the air conditioner off: models with a
button
– Keep pressing the -
button for the blower until the display seg-
ment is empty. The air conditioner is switched off and the sup-
ply of air from outside the vehicle is cut off.
Switching the air conditioner on: models with an OFF
button
– Press the OFF
button again, or
– Press the AUTO
button or
– Press one of the air distribution buttons
, or .
Switching the air conditioner on: models with a
button
– Press the +
button for the blower, or –
Press the AUTO
button or
– Press one of the air distribution buttons
, or .
The air conditioner also starts to operate if one of the blower or temperature
selector buttons is pressed.
Blower speed -
+
The automatically selected blower speed can be reduced or
increased manually.
– Press the -
and + buttons in the centre of the control panel
⇒ fig. 130 to set the blower to the desired speed (and regulate
the volume of air delivery).
The air conditioner system automatically regulates the blower speed accord-
ing to the interior temperature. However, you can also adjust the air delivery
manually. The current blower setting is illustrated by a bar in the middle dis-
play (above the buttons).
Automatic change of passenger temperature
In order to automatically set the passenger temperature like the driver tem-
perature, press the AUTO button on the driver side for 2 seconds approxi-
mately. In order to automatically set the driver temperature like the passen-
ger temperature, press the AUTO
button on the passenger side for 2 sec-
onds approximately.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
163
Air conditioning
Air directed to windows
This setting directs all the air to outlets 1 and 2. Unlike in setting , the
volume of air delivery remains the same.
Air to the driver/front passenger
All the air comes from outlets 3 and 4 in the dash panel and from the rear of
the centre console.
Air to the footwells
Most of the air emerges from outlets 5 and the outlets under the front seats.
Some of the air will also be issued from outlets 3 and 4.
Note
In all of the above air distribution settings, a small amount of air will still
come from the other outlets.
Economical use of the air conditioner
Economical use of the air conditioner will help save fuel.
Engine power is reduced and fuel consumption increases when the
air conditioner is in cooling mode. To ensure that the system is on-
ly switched on when it is really necessary, please note the follow-
ing points:
– Select ECON mode if you wish to save fuel.
– Select ECON mode if you decide to open the windows or sun-
roof* while driving.
– If the vehicle has heated up after standing in the sun, open the
windows and doors for a short time to cool the vehicle.
For the sake of the environment
By saving fuel you also reduce the amount of pollutants emitted from your
vehicle.
Key settings
When the ignition is switched on, the air conditioner set-
tings assigned to the key are selected automatically.
The air conditioner settings selected are automatically stored and assigned
to the key in use. When the vehicle is started, the air conditioner automati-
cally selects the settings assigned to the key. Hence, every driver automati-
cally obtains his/her preferred settings without having to select them man-
ually.
Note
Should another driver use the key and enter other settings, the previous
settings will be deleted.
Solar-powered blower/sunroof*
If the vehicle is parked in sufficiently strong sunlight, the
blower will operate in solar-powered mode when the igni-
tion is switched off.
After the ignition is switched off, the blower is supplied with electrical pow-
er from the sunroof. Please ensure that outlets 3 and 4 are open ⇒ fig. 132
to ensure the best possible ventilation.
The blower only works when the sunroof is closed or tilted open at the rear.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
179
Driving
To move the selector lever to position R, press in the interlock button and at
the same time press the brake pedal. Depending on the model, one or two
reverse lights will come on in selector lever position R (when ignition is
switched on).
N - Neutral (idling)
In this position the gearbox is in neutral ⇒
.
D - Drive (forward)
In this position, the gearbox selects the optimal transmission ratio depend-
ing on the engine load, speed and the dynamic gear regulation programme
(DRP).
Press the brake pedal when moving the selector lever from N to D if the ve-
hicle is stationary or at speeds below 5 km/h ⇒
.
Under certain circumstances (e.g. when driving in mountains or towing a
trailer or caravan) it can be advantageous to switch temporarily to tiptronic
mode ⇒ page 182, so that the gear ratios can be selected manually to suit
the driving conditions.
S - Sport position
To drive in sports mode, select the position S. The engine power reserve is
used to its maximum. When accelerating the gear shifts will be noticeable.
Press the brake pedal when moving the selector lever from N to S if the vehi-
cle is stationary or at speeds below 5 km/h ⇒
.
WARNING
● Never move the selector lever to R or P when driving. Failure to do so
could result in an accident.
● In selector position D or S the vehicle must always be held with the
foot brake when the engine is running. This is because an automatic
gearbox still transmits power even at idling speed, and the vehicle tends
WARNING (Continued)
to “creep”. The throttle must on no account be opened inadvertently (for
instance by hand from the engine compartment) when a gear is engaged
with the vehicle stationary. The vehicle could otherwise start moving im-
mediately (in some cases even if the parking brake is engaged) and pos-
sibly cause an accident.
● To avoid accidents, apply the parking brake and put the selector lever
in position P before opening the bonnet and working on the vehicle with
the engine running. Please observe the important safety warnings
⇒ page 221, Work in the engine compartment.
Note
● Applies to vehicles with tiptronic gearbox:
● If the lever is moved accidentally to N when driving, release the accelera-
tor and let the engine speed drop to idling before selecting D or S again.
● For the sake of fuel economy (and the environment), the gearbox ratios
on some models are designed so that maximum speed is only obtained
when the gear lever is in position S.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
181
Driving
Vehicles with tiptronic gearbox
When the accelerator pedal is pressed right down past the point of resist-
ance at full throttle, the gearbox will shift down to a lower gear, depending
on road speed and engine speed. The upshift to the next higher gear is de-
layed until the engine reaches maximum rpm.
WARNING
Please note that if the road surface is slippery or wet, the kick-down fea-
ture could cause the driving wheels to spin, which could result in skid-
ding.
Dynamic gear control programme (DCP)
The automatic gearbox is controlled electronically.
The vehicle is equipped with an electronically controlled gearbox. The gear
ratios are selected automatically according to preset gearshift programmes.
When you drive at moderate speeds the gearbox will select the most eco-
nomical shift programme. It will then change up early and delay the down-
shifts to give better fuel economy.
If you drive at higher speeds with heavy acceleration, if you open the throt-
tle quickly, or if you use the kick-down or the vehicle's maximum speed, the
gearbox will automatically select the sport programme.
The gearbox is self-adapting, and continuously selects the most suitable
shift programme. At the same time, the driver can also make the gearbox
switch to the sport programme by pressing the accelerator quickly. This
makes the gearbox shift down into a lower gear ratio, allowing a more rapid
acceleration (for instance to pass another vehicle), without having to press
the accelerator all the way down into the kick-down position. After the gear-
box has shifted back up it returns to the original programme, depending on
your style of driving. Vehicles with multitronic® gearbox: the gearbox continuously adapts the
gear ratios to gradients. If the brake pedal is pressed on a downhill gradient
the gearbox automatically shifts to a lower gear ratio. This increases the en-
gine braking effect.
Vehicles with tiptronic gearbox: in mountainous areas, the gearbox adapts
the gears for uphill and downhill gradients. This helps to avoid constant
gear changes on uphill gradients.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications