Heating and air conditioning system84
Close air outlet vents
– Turn the rotary knob into the lower position.
Redirecting air flow
– The horizontal as well as the vertical direction of the air flow is set with
the handle in the middle of the air outlet vents.
You can set the air supply to the individual vents with the air distribution control ⇒ page 81, fig. 95. Air outlet vents 3 and 4 can also be opened or closed individu- ally:
Unwarmed or cooled air will flow out of the air outlet vents according to the setting of control dial ⇒page 81, fig. 95 and the atmospheric conditions.
Using the air conditioning system economically
The compressor on the Climatic uses power from the engine when in cooling mode which will effect the fuel consumption.
It recommended to open the windows or th e doors of a vehicle for which the inte- rior has been strongly heated through the ef fect of direct sunlight in order to allow the heated air to escape.
The cooling system should not be switched on while travelling when the window is open.
The desired interior temperature can also be achieved without switching in the cooling system just by switching to fresh air mode.
For the sake of the environment
When you economize on fuel, you also reduce pollutant emissions.
Operational problems
If the cooling system does not operate at outside temperatures higher than +2 °C, there is a problem in the system. The reasons for this may be:
•The fuse of the Climatic is defective. Check the fuse, replace it if necessary ⇒ page 207.
•The cooling system has switched off automatically for a short time because the coolant temperature of the engine is too hot ⇒page 10.
If you are not able to rectify the operat ional problem yourself, or if the cooling capacity decreases, switch the cooling sy stem off. Contact a specialist garage.
If there is a fault at the Climatronic, all symbols on the display flash after switching on the ignition for 15 seconds. Contact a specialist garage.
Climatronic (automatic air conditioning)*
Description
The Climatronic system is a combination of an automatic heating,
fresh air and cooling system which provides optimal comfort for the
occupants of the car.
The Climatronic maintains a constant temper ature fully automatically, once it has been set. This is achieved by automa tically varying the temperature of the outflowing air, the blower stages and the air distribution. The system also takes into account sunlight which eliminates the ne ed to alter the settings manually. The automatic mode ⇒page 86 ensures maximum wellbeing of the occupants at all times of the year.
Description of Climatronic system
The cooling operates only if the following conditions are met:
•engine running,
•outside temperature above +2 °C,
•the button is not pressed.
If the cooling system is switched on, the temperature and air humidity drops in the vehicle. The wellbeing of the occupants of the car is enhanced as a result of this particularly at high outside temperatures and a high air humidity. The system prevents the windows misting up during the cold season of the year.
AC
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The heating effect is dependent upon th e coolant temperature, thus full heat output only occurs when the engine has reached its operating temperature.
It is possible to briefly activate recirc ulated air mode in order to enhance the cooling effect ⇒.
The air inlet in front of the windscreen must be free of ice, snow or leaves in order to ensure that the heating and cooling systems operate properly.
The AC compressor is switched off at a hi gh coolant temperature in order to provide cooling at a high load of the engine.
After switching on the cooling Condensation from the evaporator of the air condi- tioning may drip down and form a puddle below the vehicle. This is quite normal and not an indication of a leak!
Recommended setting for al l periods of the year:
•Set the temperature to 22 °C.
•Press the button ⇒fig. 97.
•Move the air outlet vents 3 and 4 so that the air flow is directed slightly upwards ⇒ page 88, fig. 98.
Switching over between degrees Celsius and degrees Fahrenheit
Press and hold the buttons and ⇒fig. 97. The information in the desired temperature measuring unit appears in the display.
WARNING
•For your own safety and that of other road users, ensure that all the windows are free of ice, snow and mistin g. Please familiarize yourself about how to correctly operate th e heating and ventilation systems, how to demist and defrost the windows, as well as with the cooling mode.
•You should not leave recirculated air mode on over a longer period of time, as “stale” air may result in fatigue in the driver and occupants, divert your attention and also cause the windows to mist up. The risk of having an accident increases. Switch recirculated air mode off as soon as the windows begin misting up.
Note
•If the cooling system has not been switched on for a lengthy period, odours may be produced at the evaporator because of deposits. Switch the cooling system on at least once a month for approximately 5 mi nutes at the highest blower stage - also during the cold season of the year - in order to remove such odours. Also open a window for a short time.
•We recommend that you do not smoke in the vehicle when the recirculating air mode is operating since the smoke which is drawn at the evaporator from the inte- rior of the vehicle forms deposits in the ev aporator of the air conditioning system. This produces a permanent odour when th e air conditioning system is operating which can only be eliminated through co nsiderable effort and expense (replace- ment of compressor).
•The used air streams out through the air removal openings in the luggage compartment.
•Using the cooling economically ⇒page 84.
•Operational problems ⇒page 84.
Overview of the control elements
Fig. 97 Climatronic: Control elements
AUTO
ECONAUTO
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Heating and air conditioning system86
Buttons / control dial
Setting the blower speed
The displays
Set blower speed
The outside temperature
Connect diagnost ic equipment
Air flow to the windows
Recirculated air mode
Air flow to the head, upper body and feet
Display of selected interior temperature, here: +20 °C
Automatic mode
ECON mode
Buttons / control dial
Setting the interior temperature
Air flow to the windows
Automatic mode
Air flow in the footwell
Air flow to the upper body
Air flow to head
Button for switching off cooling system
Recirculated air mode
Note
The interior temperature sensor is locate d in the bottom part of the device. Do not glue or cover over the sensor, otherwise it could have an unfavourable effect on the Climatronic.
Automatic mode
The automatic mode is used in order to maintain a constant temper-
ature and to keep the windows in the interior of the car dry.
Switching automatic mode on
– Set a temperature between +18 °C and +29 °C.
– Move the air outlet vents 3 and 4 ⇒page 88, fig. 98 so that the air flow
is directed slightly upwards.
– Press the button , AUTO appears in the display.
The automatic mode is switched off by pressing the button for the air distribution or increasing or decreasing the blower speed. The temperature is nevertheless regulated.
ECON mode
The cooling system is switched off in the ECON mode - heating and
ventilation are regulated automatically.
Switching ECON mode on
– Press the button , ECON appears in the display.
– Set a temperature between +18 °C and +29 °C.
Recirculated air mode in ECON mode
– Press the button , AUTO appears in the display.
– Press the button , ECON appears in the display.
ECON mode operates only within the control temperature range from +18 °C up to +29 °C.
The ECON mode is switched off when pressing button or .
Please note that, in the ECON mode, the interior temperature cannot be lower than the outside temperature. The interior is no t cooled and the air is not dehumidified.
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Please refer to the information regarding recirculated air mode ⇒page 87.
Defrosting windscreen
Defrosting windscreen - switching on
– Press the button ⇒page 85, fig. 97.
Defrosting windscreen - switching off
– Once again press the button or the button .
The temperature control is controlled automa tically. More air flows out of the air outlet vents 1 and2.
Recirculated air mode
In recirculated air mode air is sucked out of the interior of the vehicle
and then fed back into the interior.
Recirculated air mode prevents polluted air outside the vehicle from
getting into the vehicle, for example when driving through a tunnel or
when standing in a traffic jam.
Switching recirculated air mode on
– Press button , the symbol appears on the display.
Switching recirculated air mode off
– Once again press the button or the button , the symbol or
the logo is no longer shown on the display.
WARNING
•You should not leave recirculated air mode on over a longer period of time, as “stale” air may result in fatigue in the driver and occupants, divert your attention and also cause the windows to mist up. The risk of having an
accident increases. Switch recirculated air mode off as soon as the windows begin misting up.
•After 15 minutes of constant recirculated air mode, the symbol flashes on the display of the Climatro nic for 5 minutes. Immediately switch off the recirculated air mode.
Note
If the windscreen mists up, press the button . After the windscreen has been demisted, press the button .
Setting temperature
– You can set the desired interior temperature after switching on the
ignition with the control dial .
You can set the interior temperature be tween +18°C and +29°C. The interior temperature is regulated automatically with in this range. If you select a tempera- ture of less than +18 °C, “LO” is shown on the display. If you select a temperature above +29 °C, “HI” is shown on the displa y. In both limit positions the Climatronic operates at maximum cooling or heating capacity, respectively. The temperature is not controlled in this case.
Lengthy and uneven distribution of the air flow out of the vents (in particular at the leg area) and large differences in temperat ure, for example when getting out of the vehicle, can result in chills in sensitive persons.
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.
AUTO
AUTO
WARNING (continued)
AUTO
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Heating and air conditioning system88
– Turn the control dial ⇒page 85, fig. 97 to the left (reduce blower
speed) or right (increase blower speed).
Switch off the blowers, the Climatronic is switched off and in the display shows OFF.
The set blower speed is displayed next to the control dial 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.
Air outlet vents
Fig. 98 Air outlet vents
Open air outlet vents
– Turn the rotary knob into the upper position.
Close air outlet vents
– Turn the rotary knob into the lower position.
Redirecting air flow
– The horizontal as well as the vertical direction of the air flow is set with
the handle in the middle of the air outlet vents.
You can control the air distribution to the air outlet vents via the buttons of the operating part of the Climatronic ⇒page 85. Air outlet vents 3 and 4 ⇒fig. 98 can also be opened or closed individually.
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Starting-off and Driving90
Ignition lock
Petrol engines
- ignition switched off, engine off
- ignition switched on
- start engine
Diesel engines
- interruption of fuel supply, ignition sw itched off, engine off, the steering can be locked.
- heating glow plugs on, ignition switched on
•You should not switch on any major elec trical components during the heating period otherwise the vehicle batt ery will be drained unnecessarily.
- start engine
Applies to all models:
Position
To lock the steering, with the ignition key withdrawn, turn the steering wheel until the steering locking pin is heard to engage. You should always lock the steering as a general rule if you leave your vehicle. This acts as a deterrent against possible theft of your vehicle ⇒.
Position
Move the steering wheel back and forward a little if the ignition key cannot, or cannot easily be turned into this position , in order to release the steering lock.
Position
The engine is started in this position. At the same time switched on low beam or main beam or other electrical compon ents with major power consumption are briefly switched off. The ignition key moves back into position when one releases the key.
The ignition key must be turned back into position each time before starting the engine again. The starter repeat lock in th e ignition lock prevents the starter being engaged when the engine is r unning and thus getting damaged.
WARNING
•When driving, the ignition key must always be in the position (igni- tion switched on) without the engine running. This position is indicated by the warning lights coming on. If this is not the case, it could result in unex- pected locking of the steerin g wheel - risk of accident!
•Do not withdraw the ignition key from the lock until the car has come to a stop. The steering lock can engage immediately - risk of accident!
•Always withdraw the ignition key if you are going to leave the vehicle, even for a short time. This is particularly important if children are left in the vehicle. The children might otherwise st art the engine or operate electrical equipment (e.g. power windows) - risk of injury!
Starting the engine
General
You can only start the engine only using an original ignition key.
•Place the gearshift lever into neutral and put on the handbrake firmly before starting the engine.
•The clutch pedal should be fully depr essed when starting the engine which means that the starter only has to crank the engine.
Fig. 101 Ignition lock positions
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•Let go of the key as soon as the engine starts otherwise there may be damage to the starter.
The engine running noises may louder at first be louder for a short time after starting the cold engine until oil pressure can be built up in the hydraulic valve clearance compensation. This is quite normal and is not an operating problem.
If the engine does not start ...
You can use the battery of anothe r vehicle as a jump-start aid ⇒page 202.
It is only possible to tow-start vehicl es fitted with a manual gearbox. The tow- starting distance must not be more than 50 metres ⇒page 205.
WARNING
•Never run the engine in non ventilated or enclosed areas. The exhaust gases of the engine contain besides the odorless and colourless carbon monoxide a poisonous gas - hazard! Carbon monoxide can cause uncon- sciousness and death.
•Never leave your vehicle unattended with the engine running.
Caution
•The starter may only be operated (ignition key position ), if the engine is not running. If the starter is immediately oper ated after switching off the engine, the starter or the engine can be damaged.
•Avoid high engine revolutions, full throttle and high engine loads as long as the engine has not yet reached its normal oper ating temperature - risk of damaging the engine!
•Vehicles which are fitted wi th an exhaust gas catalytic converter should not be tow-started over a distance of more than 50 metres.
For the sake of the environment
Never warm up the engine when the vehicle is standing. Drive off right away. When driving the engine reaches its operating temperature more rapidly and the pollutant emissions are lower.
Petrol engines
These engines are fitted with a starter system which selects the correct fuel/air mixture for every external air temperature.
•Do not operate accelerator before and when starting engine.
•Interrupt the attempt at starting after 10 seconds if the engine does not start right awayand wait for about 30 seconds before repeating the attempt.
•It is possible that the fuse on the electric al fuel pump is defect if the engine still does not start. Check the fuse and replace it if necessary ⇒page 207.
•If the engine does not start, contact the nearest specialist garage to obtain professional assistance.
It may be necessary, if the engine is very hot, to slightly depress the accelerator after the engine has started.
Diesel engines
Glow plug system
Diesel engines are equipped with a glow plug system, the preglow period being controlled automatically in line with the coolant temperature and outside temper- ature.
The preglow indicator light comes on after the ignition has been switched on.
You should not switch on any major electrical components during the heating period otherwise the vehicle battery will be drained unnecessarily.
•You should start the engine immediately after the glow plug warning light has gone out.
•The glow plug warning light will come on for about one second if the engine is at a normal operating temperature or if the outside temperature is above +5°C. This means that you can start the engine right away.
•Interrupt the attempt at starting after 10 seconds if the engine does not start right awayand wait for about 30 seconds before repeating the attempt.
•It is possible that the fuse on the diesel preglow system is defect if the engine still does not start. Check the fuse and replace it if necessary ⇒page 207.
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Handbrake
Applying the handbrake
– Pull the handbrake lever up fully.
Releasing the handbrake
– Pull the handbrake lever up slightly and at the same time press in the
locking button ⇒fig. 103.
– Hold the button pressed and push the handbrake lever down fully
⇒ .
The handbrake warning light lights up when the handbrake is applied, provided the ignition is on.
A warning signal sounds and the following te xt appears in the display* if you have inadvertently driven off with the handbrake applied:
HANDBRAKE ON
The handbrake warning is activated if you drive at a speed of more than 6 km/h for more than 3 seconds.
WARNING
•Please note that the handbrake must be fully released. A handbrake which is only partially released can re sult in the rear brakes overheating which will have a negative effect on th e operation of the brake system - risk of accident! In addition this can result in premature wear of the rear brake pads.
•Never leave children unattended in the vehicle. The children might, for example, release the handbrake or take the vehicle out of gear. The vehicle might then move off - risk of accident!
Caution
After the car has come to a stop, always firs t of all apply the handbrake firmly before then additionally engaging a gear (manua l gearbox) or moving the selector lever into position P (automatic gearbox).
Parking aid*
The parking aid provides a warning of obstacles behind the vehicle.
The audible parking aid determines the distance between the rear bumper and an obstacle located behind the vehicle with th e aid of ultrasound sensors. The sensors are integrated in the rear bumper.
Fig. 103 Centre console: Handbrake
Fig. 104 Parking aid: Range of sensors
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