Heating and air conditioning system119
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
dent increases. Switch recirculated
air mode off as soon as the windows
begin misting up.
Note
•If the windscreen mists up, press the button ⇒page 116, fig. 140.
After the windscreen has been demisted, press the button .
•The automatic air distribution control operates only if the outside temperature
is higher than approx. 2°C.
Controlling blower
There are a total of seven blower stages available.
The Climatronic system controls the bl ower stages automatically in line
with the interior temperature. You can also, however, adapt the blower
stages manually to suit your particular needs.
– P re s s a g a i n t h e b u t t o n o n t h e l e f t s i d e ( re d u c e b l o w e r s p e e d ) o r o n the right side (increase blower speed).
If you switch off the blower, the Climatronic is switched off.
The set blower speed is displayed above the button when the respective
number of warning lights come on.
WARNING
•“Stale air” may result in fatigue in the driver and occupants, reduce
attention levels and also cause the windows to mist up. The risk of having an
accident increases.
•Do not switch the Climatronic system off for longer than necessary.
•Switch the Climatronic system on as soon as the windows mist up.
Defrosting windscreen
Defrosting windscreen - switching on
–Press the button ⇒page 116, fig. 140 .
Defrosting windscreen - switching off
– Once again press the button or the button .
The temperature control is controlled auto matically. More air flows out of the air
outlet vents 1.
Auxiliary heating (auxiliary heating and ventilation)*
Description and important information
The auxiliary heating (auxiliary heating and ventilation) heats or
supplies the interior of the vehicl e with fresh air independent of the
engine.
Auxiliary heating (auxiliary heating)
The auxiliary heating (auxiliary heating) func tions in connection with the Climatic or
Climatronic.
It can be used when stationary, when engi ne is switched off for preheating of the
vehicle as well as while driving (only during the heating phase of the engine).
The auxiliary heating (auxiliary heating) warms up the coolant during the combus-
tion of fuel from the vehicle tank. The coolant warms up the air, which (if the blower
speed is not set to zero) flows into the occupant compartment.
11)
Auxiliary ventilation
The auxiliary ventilation enables fresh air to flow into the vehicle interior by
switching off the engine, whereby the interior temperature is effectively decreased
(e.g. with the vehicle parked in the sun).
WARNING (continued)
A1AUTO
11)However the coolant does not warm up the engine.
AUTO
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Heating and air conditioning system
120
WARNING
•The auxiliary heating must never be op erated in closed rooms - risk of
poisoning!
•The auxiliary heating must not be running during refueling - risk of fire.
•The exhaust pipe of the auxiliary heating is located on the underside of
the vehicle. Therefore do not place the vehicle, if you wish to operate the
auxiliary heating, in such a way that the exhaust gases of the auxiliary
heating can come easily into contact with inflammable materials (e.g. dry
grass) or easily inflammable substances (e.g. fuel run out).
Note
•If the auxiliary heating runs, the fuel consumption comes from the vehicle tank.
Therefore the auxiliary heating should not be operated, if there is very little fuel in
the tank.
•The exhaust pipe of the auxiliary heating, which is located on the underside of
the vehicle, must not be clogged and the exhaust flow must not be blocked.
•If the auxiliary heating and ventilation is running, the vehicle battery discharges.
If the auxiliary heating and ventilation has been operated several times over a
longer period, the vehicle must be driven a few kilometers in order to recharge the
vehicle battery.
•The auxiliary heating only switches the bl ower on, if it has achieved a coolant
temperature of approx. 50 °C.
•At low outside temperatures, this can resu lt in a formation of water vapour in
the area of the engine compartment. This is quite normal and is not an operating
problem.
•After switching off the auxiliary heatin g, the coolant pump runs for a short
period.
•The auxiliary heating and ventilation does not switch on or comes on, if the
vehicle battery indicates a low loading state.
•The auxiliary heating (auxiliary heating) does not switch on, if the following was
shown in the information display or before switching off the ignition: Please
refuel! .
•When driving, the auxiliary heating can only be switched on, if the exterior
temperature is lower than 5 °C.
•The air inlet in front of the windscreen must be free of ice, snow or leaves in
order to ensure that the auxili ary heating operates properly.
•So that warm air can flow into the vehi cle interior after switching on the auxil-
iary heating, you must maintain the te mperature normally selected by you (we
recommend 22°C). It is recommended to put the air flow in the position
.
•On vehicles with DPF (diesel particle filter) the warm coolant heats up the
engine.
Using the system
So that the auxiliary heating (auxiliary heating and ventilation) func-
tions according to your expectations, it is necessary to carry out the
basic setting before its programming.
Basic setting
– On the information display, select from the Main menu the menu
point Setup (settings).
– From the menu Settings select Aux. heating (auxiliary heating).
– In the menu Aux. heating (auxiliary heating) ⇒ fig. 141 select the
menu point Weekday and set the current day.
Fig. 141 Information
display: Aux. Heating (auxil-
iary heating)
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Heating and air conditioning system121
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
– Return to a higher level by selecting the menu point Back, i. e. in the
menu Aux. Heating (auxiliary heating) .
– In the menu Aux. Heating (auxiliary heating) select the menu point
Running time and set the desired operating period in steps of
1 minute. The operating period can be 5 to 60 minutes.
– By selecting the menu point Back, you will reach in the menu
Aux. Heating (auxiliary heating) .
– In the menu Aux. heating (auxiliary heating) select the menu point
Mode .
– In the menu Mode select the desired mode Heating or Ventilation .
Programming
For the programming of the auxiliary heating (auxiliary heating and ventilation) in
the menu Aux. heating (Aux. heating) there are three pre-set times:
•Pre-set time 1
•Pre-set time 2
•Pre-set time 3
In each pre-set time, the day (if necessary each day = daily) and the time (hour and
minute) can be set for the operating period of the auxiliary heating and/or ventila-
tion.
If you leave the pre-set menu by selecting the menu Back or do not operate the
display for longer than 10°seconds, the set values are stored, but the pre-set time is
not active.
Both other pre-set times can be prog rammed and stored in the same way.
If you select the menu Activate after setting the desired values, appears on the
display Pre-set time (weekday, hours, minute) activated! and the set pre-set
time is active.
Only one programmed pre-set time can be active.
The last programmed pre-set time remains active. Changing the active pre-set time is carried out after selecting the menu point
Activate
in the menu Aux. heating (auxiliary heating) by selecting a pre-set time.
The prerequisite for the correct switching on of the auxiliary heating (auxiliary
heating and ventilation) according to th e programmed pre-set time is the correct
setting of the current time and the weekday ⇒ page 120.
If the system is running, a warning light in the button for direct switching on/off of
the auxiliary heating lights up.
The running system deactivates after expiration of the operating period or is deac-
tivated earlier by pres sing the button for direct switching on/off of the auxiliary
heating ⇒page 123.
The random pre-set time can be deactivated by selecting the menu point Deactive
in the menu Activate.
After selecting the menu point Fa c t o r y s e t t i n g in the menu Aux. heating
(auxiliary heating) , it is possible to change to the factory setting.
Radio remote control
The auxiliary heating (auxiliary heating and ventilation) can be
switched on or off with the remote control.
– For switching on, press the button .
– For switching off, press the button .
Fig. 142 Auxiliary heating:
Radio remote control
ON
OFF
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Heating and air conditioning system
122
The transmitter and the battery are housed in the housing of the remote control.
The receiver is located in the interior of the car.
If the battery is properly charged, the ef fective range is up to 600 m. For switching
on or off the auxiliary heating, hold the remote control vertically with the antenna
⇒ page 121, fig. 142 towards the top. You must not cover over the antenna with
the fingers or the palm of the hand. Obstacles between the remote control and the
vehicle, bad weather conditio ns and a weaker battery can clearly reduce the range.
The auxiliary heating can only be switched on or off with the remote control, if the
distance between the remote control and the vehicle is at least 2 m.
Warning light in the remote control
The warning light in the remote control ⇒page 121, fig. 142 indicates after a
keystroke if the remote control signal was received by the auxiliary heating and if
the battery is adequately charged.Caution
There are electronic components in the remote control, protect the remote control
against water, severe shoc ks and direct sun rays.
Changing the battery of the radio remote control
If the warning light of the remote control indicates a weak or discharged
battery, ⇒page 121, fig. 142 , it must be replaced. The battery is located
under a cover on the back of the remote control.
– Place a coin into the gap of the battry cover and by turning to the left, unlock the cover.
– Change the battery, insert the cover and lock it by turning to the right.
For the sake of the environment
Dispose of an old battery in accord ance with environmental regulations.
Note
•Pay attention to the correct polarity when changing the battery.
•The replacement battery must have the same specification as the original
battery.
Display warning lightImportance
Lights up green for 2 seconds.The auxiliary heating was switched on.
Lights up red for 2 seconds.The auxiliary heating was switched off.
Slowly flashes green for 2 seconds.The ignition signal was not received.
Quickly flashes green for 2 seconds.The auxiliary heating is blocked, e. g
because the tank is nearly empty or
there is a fault in the auxiliary heating.
Flashes red for 2 seconds.The switch off signal was not received.
Lights up orange for 2 seconds, then
green or red.The battery is weak, however the
switching on or off signal was received.
Lights up orange for 2 seconds, then
flashes green or red.The battery is weak, however the
switching on or off signal was not
received.
Flashes orange for 5 seconds.The battery is discharged, however the
switching on or off signal was not
received.
AA
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Heating and air conditioning system123
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Direct switching on/off
The auxiliary heating (auxiliary heating and ve ntilation) can be switched on or off at
any time directly using the button on the operating part of the Climatic
⇒ fig. 143 or on the operating part of the Climatronic.
If the auxiliary heating and ventilation is not switched off earlier, it switches off
automatically after the expiration of the set operating period, in the menu Running
time .
Fig. 143 Button for direct
switching on/off of the auxil-
iary heating (auxiliary
heating and ventilation) on
the operating part of the
Climatic
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Passive Safety
164
Before setting off
The driver is always fully respon sible for his occupants and for the
operating safety of the vehicle.
For your own safety and the safety of the people travelling with you, please pay
attention to the following points before setting off:
•Ensure that the lighting and the turn signal system are functioning properly.
•Inspect the tyre inflation pressure.
•Ensure that all the windows offer a good visibility to the outside.
•Safely attach the items of luggage ⇒page 85, “Loading the luggage compart-
ment”.
•Ensure that no objects can obstruct the pedal.
•Adjust the mirror, the front seat and the head restraint to match your body size.
•Point out to your occupants that the head restraints must be adjusted to match
their body size.
•Protect the children in suitable child se ats with correctly fastened seat belts
⇒ page 184, “Transporting children safely”.
•Adopt the correct seated position ⇒page 164, “Correct seated position”. Also
inform your occupants to adop t the correct seated position.
•Fasten the seat belt correctly. Also inform your occupants to properly fasten the
seat belts ⇒page 170, “How are seat belts correctly fastened?”.
What influences the driving safety?
The driving safety is primarily dete rmined by the style of driving and
the personal behaviour of all the occupants.
The driver is fully responsible for himself and his occupants. If your driving safety is
effected, you place yourself and the oncomi ng traffic at risk. Please refer to the
following guidelines.
•Do not get distracted from concentrating on the traffic situation, e.g. by your
occupants or mobile phone calls.
•Never drive when your driving ability is impaired, e.g. through medication,
alcohol, drugs.
•Keep to the traffic regulations and the permissible speed limit.
•Adjust the driving speed at all times to the road condition as well as to the traffic
and weather conditions.
•Take regular breaks on long journe ys - at the latest every two hours.
Correct seated position
Correct seated position for the driver
Correct seated position for the driver is important for safe and
relaxed driving.
Fig. 168 The correct distance
of the driver from the
steering wheel
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Seat belts
170
•No two persons (also not children) should ever use a single seat belt
together.
•The maximum protection which seat belts can offer is only achieved if
you are correctly seated ⇒page 164, “Correct seated position”.
•The belt webbing must no t run across solid or fragile objects (e.g. spec-
tacles, ball-point pens, keys etc.) as this may be a cause of injuries.
•Bulky, loose clothing (e.g. a winter coat over a jacket) does not allow you
to be correctly seated and impairs proper operation of the seat belts.
•It is prohibited to use clamps or other objects to adjust seat belts (e.g. for
shortening the belts for smaller persons).
•The lock tongue should only be insert ed into the lock which is the correct
one for your seat. Wrong use of the safety belt will reduce its capacity to
protect and the risk of injury increases.
•The backrests of the front seats must not be tilted too far to the rear
otherwise the seatbelts can lose their effectiveness.
•The belt webbing must always be ke pt clean. Soiled belt webbing may
impair proper operation of the inertia reel ⇒page 217, “Seat belts”.
•The slot of the belt tongue must not be blocked by paper or similar
objects otherwise the belt tongue will not lock in place properly.
•Inspect the seat belts regu larly to ensure they are in good condition. If
you find seat belts which have damage to the seat belt webbing, seat belt
connections, to the inertia reels or to the lock, the relevant safety belt must
be replaced by a specialist garage.
•The seat belts must not be removed or changed in any way. Do not make
an attempt to repair the seat belts yourself.
•Damaged seat belts which have been subjected to stress in an accident
and were therefore stretched, must be replaced - this is best done by a
specialist garage. The anchorage points of the belts must also be inspected.
The anchorage points for the be lts should also be checked.
•In certain countries it is possible to use seat belts which differ in terms of
their operation from the seat belts wh ich are described on the pages which
follow.
How are seat belts correctly fastened?
Fastening three-point seat belts
Fasten your seat belt before starting!
– Correctly adjust the front seat and the head restraint before fastening your seat belt ⇒page 80.
WARNING (continued)
Fig. 173 Routing of webbing
over the shoulders and the
lap belt
Fig. 174 Routing of belt
webbing for an expectant
mother
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Airbag system175
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
When are the airbags deployed?
The airbag system is designed in such a way that the driver and front passenger
airbag are deployed in the event of a frontal collision of major severity.
In the case of a violent side crash , the side airbag* on the side of the car at which
the collision occurs, is deployed together with the head airbag*.
In certain accident situations, the front airbags as well as the side and head airbag
may be deployed together.
The airbags are not deployed in the case of minor frontal and side collisions, in the
case of rear-end collisi ons and vehicle rollover.
Deployment factors
It is not possible to state globally which deployment conditions apply to the airbag
system in every situation as the circumstances which exist in the case of accidents
vary greatly. An important role in this case , for example, is played by factors such as
the type of object (hard, soft) against whic h the vehicle impacts or the type of object
against which the vehicle impa cts, the angle of impact, the relative vehicle speed
during the accident etc.
A decisive factor for the deployment of the airbags is the deceleration which occurs
during a collision. The control unit analyses the nature of the collision and activates
the relevant restraint system. If the vehi cle deceleration which occurs and is meas-
ured during the collision remains below the prescribed reference values specified
in the control unit, the airbags are not deployed although the vehicle may well
suffer severe damage to the bodywork as a consequence of the accident.
The airbags are not deployed if:
•ignition off,
•a minor frontal collision,
•a minor side collision,
•a rear-end collision,
•rollover.
Note
•A grey white, non harmful gas is released when airbag is inflated. This is
perfectly normal and is not an indi cation of a fire in the vehicle.
•In the event of an accident in which the airbags are deployed:
−The interior lighting comes on (if the switch for the interior light is in the door
contact position),
− The hazard warning light is switched on,
− All the doors are unlocked,
− the fuel supply to the engine is interrupted.
Front airbag
Description of the front airbags
The airbag system is not a substitute for the seat belt!
Fig. 177 Driver airbag in the
steering wheel
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