
Cockpit
58display
4).  Stop the car and switch off the engine.  Check the coolant level 
⇒ page 215  ⇒ .
Even if the coolant level is correct  do not continue driving. You should obtain 
technical assistance.WARNING
When working in the engine compartment, always bear in mind the safety 
warnings ⇒ page 208.
Caution
Accessories in front of the air inlet reduce the cooling effect of the coolant. At 
high outside temperatures and high engine loads, there is a risk of the 
engine overheating.Rev counter
The rev. counter displays the engine speed in revolutions per 
minute.The start of the red zone on the dial  ⇒page 56, fig. 33    indicates the 
maximum engine speed which may be used briefly when the engine is warm 
and after it has been run-in properly. Ho wever, it is advisable to change up a 
gear or move the selector lever to D (or l ift your foot off the accelerator) before 
the needle reaches the red zone.
Caution
The rev counter needle must never enter the red zone on the scale. Risk of 
engine damage.
For the sake of the environment
Changing up a gear early will help you to save fuel and minimise engine 
noise.Setting the digital clock* 
The digital clock is located in the instrument panel display.– Turn the setting knob  ⇒page 56, fig. 33    anti-clockwise to 
the stop to set the hour. If the kn ob is turned briefly anti-clock-
wise the clock will advance one hour further.
– Turn the setting knob clockwise to the limit stop to set the  minutes. If the knob is turned briefly clockwise the clock will 
advance one minute further.
4)Depending on the model version
A4
A5
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Heating, Ventilation and Air conditioning
152
NotePlease observe the general notes  ⇒page 158.Heating and cooling the interiorHeating of the vehicle interior
– Turn the temperature selector  ⇒fig. 125    clockwise to select 
the required temperature.
– Turn the blower switch to one of the settings 1-4.
– Use the air distribution control to guide the flow of air in the  required direction:   (to the windscreen),   (to the upper 
body),   (to the foot well) and   (to the windscreen and to the 
foot well). Cooling the passenger compartment
– Switch on the air conditioner using the button 
⇒page 151, 
fig. 124  .
– Turn the temperature selector anti-clockwise until the desired  cooling output is reached.
– Turn the blower switch to one of the settings 1-4.
Fig. 125  On the dash panel: Climatic controls
A1
AC
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Heating, Ventilation and Air conditioning
154Air recirculation mode  ⇒page 153, fig. 126   prevents strong odours in 
the outside air from entering the vehicle interior, for example when passing 
through a tunnel or in queuing traffic.
With low outside temperatures, the air recirculation increases the effective-
ness of the heating system by warming the air inside the passenger compart-
ment rather than the air from outside.
With high ambient temperatures, the air recirculation increases the effective-
ness of the air conditioning system by cooling the air inside the passenger 
compartment rather than the air from outside. For reasons of safety, air recirculation is 
not possible when the control for air 
distribution is set to the windscreen setting 
.
WARNING
In air recirculation mode, no ambient air enters the vehicle interior. If the 
air conditioning system is switched off, the windows can quickly mist over. 
Therefore, you should never leave the air recirculation mode switched on 
for longer periods, as this increases the risk of an accident.
2C-Climatronic*Control switches
The controls allow separate adjustment of air conditioning settings for the left and right.
Fig. 127  On the dash panel: 2C Climatronic controls
altea_ingles_0706.book  Seite 154  Mittwoch, 30. August 2006  3:48 15 

Heating, Ventilation and Air conditioning 157
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
Temperature
There are separate temperature selectors for the left and right sides of the 
vehicle interior. The selected temperature is displayed above the selector. It 
is possible to select interior tem
peratures from +16°C (61°F) to +29.5°C 
(86°F). These are approximate temperat ures and the actual temperature may 
be slightly higher or lower depending on the ambient conditions.
If a temperature below 16°C (61°F) is selected, the display switches to  LO. In 
this setting the system runs at maximum cooling output and the temperature 
is not regulated.
If a temperature above 29.5°C (86°F) is selected the display switches to  HI. In 
this setting the system runs at maximum heating output and the temperature 
is not regulated.
Blower
The airflow may be adjusted freely using the control  . Always have the 
blower running at a low setting to ensure a constant flow of fresh air into the 
vehicle. Pushing the button 
 to the minimum -1, tu rns the Climatronic off.
Air distribution
The air distribution is adjusted using the buttons  ,   and  . It is also 
possible to open and close some of the air vents separately.
Switching the air conditioning system on and off
Pressing the button   switches off the air conditioning system to save 
fuel. The temperature continues to be regulated. The set temperature can 
then only be reached if it is higher than the ambient temperature.
Air recirculation mode
Air recirculation mode prevents  fumes or unpleasant smells 
from entering the vehicle.– Press the button    ⇒page 156, fig. 128    to switch air recir-
culation mode on or off. It is switched on if the following symbol 
appears in the display 
.
Air recirculation mode prevents strong odours in the ambient air from 
entering the vehicle interior, for example when passing through a tunnel or in 
queuing traffic.
With low outside temperatures, the air recirculation increases the effective-
ness of the heating system by warming the air inside the passenger compart-
ment rather than the air from outside.
With high ambient temperatures, the air recirculation increases the effective-
ness of the air conditioning system by cooling the air inside the passenger 
compartment rather than the air from outside.
For reasons of safety, air recirculation is  not possible when the control for air 
distribution is set to the windscreen setting 
.
WARNING
In air recirculation mode, no ambient air enters the vehicle interior. If the 
air conditioning system is switched off, the windows can quickly mist over. 
Therefore, you should never leave the air recirculation mode switched on 
for longer periods, as this increases the risk of an accident.
A10
ECON
A2
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Heating, Ventilation and Air conditioning
158General notesThe pollen filter
The pollution filter (a combined pa rticulate filter and activated carbon filter) 
serves as a barrier against impurities in the outside air, including dust and 
pollen.
For the air conditioning system to work with maximum efficiency, the pollen 
filter must be replaced at the intervals specified in the Service Schedule.
If the filter loses efficiency prematurely due to use in areas with very high 
levels of air pollution, the pollen filte r must be changed more frequently than 
stated in the Service Schedule.
Caution
•
If you suspect that the air conditioner is damaged, switch off the air condi-
tioner with button   to prevent further damage and have it checked by a 
qualified workshop.
•
Repairs to the air conditioning system require specialist knowledge and 
special tools. Therefore, we recommend that you take the vehicle to a quali-
fied workshop should problems occur.Note
•
If the humidity and temperature outside the vehicle are high,  condensa-
tion  can drip off the evaporator in the cooling system and form a pool under-
neath the vehicle, this is completely normal and there is no need to suspect 
a leak.
•
Keep the air intake slots in front of the windscreen free of snow, ice and 
leaves to ensure heating and cooling is not impaired, and to prevent the 
windows misting over.
•
The air from the vents flows through the passenger compartment and is 
extracted by slots designed for this purpose. Do not cover these slots with 
articles of clothing  or other objects.
•
The air conditioning system operates most effectively with the windows 
and the sliding/tilting roof* closed. Howe ver, if the sun has heated up the 
vehicle, the air inside can be cooled more quickly by opening the windows for 
a short period.
•
Do not smoke while air recirculation mode is on, as smoke drawn into the 
air conditioning system leaves a r esidue on the evaporator, producing a 
permanent unpleasant odour.
•
The air conditioning should be turned  on at least once a month, to lubri-
cate the system gaskets and prevent  leaks. If a decrease in the cooling 
capacity is detected, an Authorised Service Centre should be consulted to 
check the system.
ECON
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Accessories, parts replacement and modifications
204If a towing bracket is to be fitted after the vehicle is purchased, this must be 
completed according to the instructions of the towing bracket manufacturer.
The attachment points for the towing bracket   are underneath the vehicle.
The distance between the centre of the ball coupling and the ground should 
never be lower than the  measurement indicated when the vehicle is fully 
loaded including the maximum resting weight.
Measurement for securing the towing bracket:
65 mm (minimum)
350 mm to 420 mm (fully laden vehicle)
357 mm
569 mm
875 mm
1040 mm
Fitting a towing bracket•
Driving with a trailer implies additional work for the vehicle. Therefore, 
before fitting a towing bracket, please contact an Authorised Service Centre 
to check whether your cooling system needs modification.
•
Observe the legal requirements in your country (e.g. the fitting of a sepa-
rate warning lamp).
•
Certain vehicle components, e.g. the  rear bumper must be removed and 
reinstalled. The towing bracket securin g bolts must be tightened using a 
torque wrench, and an electrical sock et must be used to connect to the 
vehicle's electrical system. This requ ires specialist knowledge and tools.
•
The figures in the illustration show the dimensions and attachment points 
that must be observed if you are retrofitting a towing bracket.
WARNING
Towing brackets should be fitted by specialists.
•
If the towing bracket is incorrectly installed, there is serious danger of 
an accident.
•
For your own safety, please observe the instructions provided by the 
manufacturer of the towing bracket.Caution
•
If the electrical socket is incorrectly installed, this could cause damage to 
the vehicle's electrical system.Note
For the sports model (FR), fitting of a  trailer bracket is not recommended due 
to the design of the bumpers.
AA
ABACADAEAFAG
WARNING (continued)
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Checking and refilling levels209
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
WARNING
All work on the engine or in the engine compartment, e.g. checking and 
refilling fluids, involves the danger of injury and scalding as well as the risk 
of accident or fire.•
Never open the bonnet if you see steam, smoke or coolant escaping 
from the engine compartment. Otherwis e, there is a risk of sustaining 
burns. Wait until no more steam or  coolant is emitted, then allow the 
engine to cool before carefully opening the bonnet.
•
Switch off the engine and remove the key from the ignition.
•
Apply the handbrake and move the gear stick to neutral or selector 
lever to position P.
•
Keep children away from the vehicle.
•
Never touch hot engine parts. There is a risk of burns.
•
Never spill liquids on a hot engine or on a hot exhaust gas system. This 
is a fire hazard.
•
Avoid causing short-circuits in the electrical system, particularly at the 
points where the jump leads are attached  ⇒page 259. The battery could 
explode.
•
Never touch the radiator fan. It is temperature controlled and could 
start automatically, even when the engine has been switched off and the 
key removed from the ignition!
•
Do not unscrew the cap on the expansion tank when the engine is hot. 
If the coolant is hot, the cooling system will be pressurised!
•
Protect face, hands and arms by covering the cap with a large, thick 
cloth to protect against escaping coolant and steam.
•
Always make sure you have not left any objects, such as cleaning cloths 
and tools, in the engine compartment.
•
If you have to work underneath the vehicle, you must use suitable 
stands additionally to support the vehicle, there is a risk of accident!. A 
hydraulic jack is insufficient for securing the vehicle and there is a risk of 
injury.
•
If any work has to be performed when the engine is started or with the 
engine running, there is an additional, potentially fatal, safety risk from the 
rotating parts, such as the drive belts, alternator, radiator fan, etc., and 
from the high-voltage ignition system. You should also observe the 
following points:
−Never touch the electrical wiring of the ignition system.
− Ensure that jewellery, loose cl othing and long hair do not get 
trapped in rotating engine parts. Danger of death. Before starting any 
work remove jewellery, tie back and  cover hair, and wear tight-fitting 
clothes.
− Always think carefully about pressing the accelerator if a gear is 
engaged in either an automatic or manual gearbox. The vehicle could 
move, even if the handbrake is applied. Danger of death.
•
If work has to be carried out on the fuel system or on electrical compo-
nents, you must observe the following sa fety notes in addition to the above 
warnings:
−Always disconnect the battery. The vehicle must be unlocked when 
this is done, otherwise the alarm will be triggered.
− Do not smoke.
− Never work near naked flames.
− Always have a fire extinguisher on hand.Caution
When changing or topping up service fluids, make absolutely certain that you 
fill the fluids into the correct reservoirs.  Failure to observe this point will result 
in serious malfunctions and engine damage!
WARNING (continued)
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Checking and refilling levels215
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
Changing engine oil
The engine oil must be changed at the intervals given in the 
service schedule.We recommend that you have the engine oil changed by an Authorised 
Service Centre.
The two different oil change intervals are shown in the  ⇒Booklet “Service 
schedule”.
WARNING
Only change the oil yourself if you have the specialist knowledge required!•
Before opening the bonnet, read and observe the warnings 
⇒ page 208, “Safety instructions on working in the engine compartment”.
•
Wait for the engine to cool down. Hot oil may cause burn injuries.
•
Wear eye protection to avoid injuries caused by splashes of oil.
• When removing the oil, drain plug with your fingers, keep your arm hori-
zonta l to help prevent oil from running down your arm.
•
Wash your skin thoroughly if it  comes into contact with engine oil.
•
Engine oil is poisonous! Used oil must be stored in a safe place out of 
the reach of children until it is disposed of.Caution
No additives should be used with engine  oil. This could result in engine 
damage. Any damage caused by the use of such additives would not be 
covered by the factory warranty.
For the sake of the environment
•
Because of the disposal problems, the necessary special tools and 
specialist knowledge required, we recommend that you have the engine oil 
and filter changed by an Authorised Service Centre.
•
Never pour oil down drains or into the ground.
•
Use a suitable container when draining the used oil. It has to be large 
enough to hold all the engine oil
CoolantCoolant specifications
Coolant is a mixture of water and at least 40% coolant addi-
tive.The cooling system must be filled with a mixture of water and at least 40 % of 
our coolant additive G 12+ or an addi tive with the specification TT-VW 774 F 
(it is dyed purple). This mixture gives the necessary frost protection down to 
-25°C and protects the alloy parts of th e cooling system against corrosion. It 
also prevents scaling and raises the boiling point of the coolant.
The concentration of coolant must  always be at least 40% - even if frost 
protection is not required.
If greater frost protection is required in  very cold climates, the proportion of 
the antifreeze additive G 12+ can be increased. However, the percentage of 
coolant additives should not exceed 60%, as this would reduce the frost 
protection. It would also reduce th e cooling effect. A mixture with 60% 
coolant additive will give frost protection to approx. -40°C.
altea_ingles_0706.book  Seite 215  Mittwoch, 30. August 2006  3:48 15