
Air conditioning169
Safety First
Operating Instructions
Practical Tips
Technical Specifications
W he n the    but ton is o ff, th e a ir  cond i tio ni ng  s ys te m  is  s witch e d o ff  to sa ve  
fuel. The temperature continues to self-regulate. The set temperature can 
then only be reached if it is higher than the outside temperature.
Driver and passenger temperature control
The   button controls the synchronisation of the 2 Climatronic climate 
zones.
When the   button is on (LED lit), the climate zone of the Climatronic is 
personalised, for example: Driver side temperature 22 °C and passenger side 
temperature 23 °C.
When the   button is off (LED off), the climate zone of the Climatronic is 
synchronised, for example: Driver side temperature 22 °C and passenger side 
temperature 22 °C.
If the   button is off and the passenger side temperature is changed, the 
function is automatically activated.
Air recirculation mode
Air recirculation mode prevents fumes or unpleasant smells 
from coming from the outside.– Press the button   
⇒page 168, fig. 132    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 
a traffic jam.
With low outside temperatures, the air recirculation increases the effective-
ness of the heating system by heating the air inside the vehicle rather than 
the air from outside. With high outside temperatures, the air recirculation increases the effective-
ness of the air conditioning system by cooling the air inside the vehicle rather 
than the ambient air.
If the windscreen air output is on and the air recirculation mode is pressed, 
this remains active. When the recirculation mode is on, if the air distribution 
towards the windscreen mode is selected, the recirculation mode is deacti-
vated. For safety reasons, the air recirculation mode should not be 
connected.
WARNING
In air recirculation mode, no cold air from the outside enters the vehicle 
interior. If the air conditioning system is switched off, the windows can 
quickly mist over. Therefore, never leave the air recirculation mode 
switched on for a long time (risk of accident).General notesPollution filter
The pollution filter (a combined particulate filter and active carbon filter) 
serves as a barrier against impurities in the outside air, including dust and 
pollen.
For the air conditioner to work with maximum efficiency, the pollution filter 
must be replaced at the intervals specified in the Service Schedule.
If the filter loses efficiency prematurely due to use in areas reaching very high 
pollution levels, the pollen filter must be changed more frequently than 
stated in the Service Schedule.
Air conditioner
When the air conditioning system is switched on, not only the temperature, 
but also the air humidity in the vehicle interior is reduced. This improves 
AC
DUAL
DUALDUAL
DUAL
A2
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Checking and refilling levels
238
– To avoid over-filling with engine oil, you should top-up using small quantities, wait a while and check the oil level before 
adding any more oil.
– As soon as the oil level is in area  , carefully close the cap.The position of the oil filler opening is shown in the corresponding engine 
compartment illustration  ⇒page 291.
Engine oil specification  ⇒page 235.
WARNING
Oil is highly inflammable! Ensure that no oil comes into contact with hot 
engine components when topping up.
Caution
If the oil level is above the area   do not start the engine. This could result 
in damage to the engine and catalytic converter. Contact a specialised work-
shop.
For the sake of the environment
The oil level must never be above area  . Otherwise oil can be drawn in 
through the crankcase breather and escape into the atmosphere via the 
exhaust system.
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 oil change intervals are shown in the Maintenance Programme.
WARNING
Only change the oil yourself if you have the specialist knowledge required!•Before opening the bonnet, read and observe the warnings 
⇒ page 232, “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-
zontal 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.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.
AB
AA
AA
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Checking and refilling levels245
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Brake fluidChecking the brake fluid level
The brake fluid is checked at the intervals given in the service 
schedule.– Read off the fluid level at the transparent brake fluid reservoir. It 
should always be between the “MIN” and “MAX” marks.The position of the brake fluid reservoir is shown in the corresponding engine 
compartment illustration  ⇒page 291. The brake fluid reservoir has a black 
and yellow cap.
The brake fluid level drops slightly when the vehicle is being used as the 
brake pads are automatically adjusted as they wear. However, if the level goes down noticeably in a short time, or drops below the 
“MIN” mark, there may be a leak in the brake system. A display on the instru-
ment panel will warn you if the brake fluid level is too low 
⇒page 77.
WARNING
Before opening the bonnet to check the brake fluid level, read and observe 
the warnings  ⇒page 232.Changing the brake fluid
The Maintenance Programme indicates the brake fluid 
change intervals.We recommend that you have the brake fluid changed by an Authorised 
Service Centre.
Before opening the bonnet, please read and follow the warnings  ⇒ in 
“Safety instructions on working in the engine compartment” on page 232 in 
section “Safety notes for working in the engine compartment”.
Brake fluid absorbs moisture. In the course of time, it will absorb water from 
the ambient air. If the water content in the brake fluid is too high, the brake 
system could corrode. This also considerably reduces the boiling point of the 
brake fluid. Heavy use of the brakes may then cause a vapour lock which 
could impair the braking effect.
It is important that you use only brake fluid compliant with US standard 
FMVSS 116 DOT 4. We recommend the use of Genuine SEAT brake fluid.
WARNING
Brake fluid is poisonous. Old brake fluid impairs the braking effect.
Fig. 171  In the engine 
compartment: Brake fluid 
reservoir cover
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Checking and refilling levels
248Charging and changing the vehicle battery
The battery is maintenance-free and is checked during the 
inspection service. All work on the vehicle battery requires 
specialist knowledge.If you often drive short distances or if the vehicle is not driven for long 
periods, the battery should be checked by a specialised workshop between 
the scheduled services.
If the battery has discharged and you have problems starting the vehicle, the 
battery might be damaged. If this happens, we recommend you have the 
vehicle battery checked by an Authorised Service Centre where it will be re-
charged or replaced.
Charging the battery
The vehicle battery should be charged by a specialised workshop only, as 
batteries using special technology have been installed and they must be 
charged in a controlled environment.
Replacing a vehicle battery
The battery has been developed to suit the conditions of its location and has 
special safety features.
Genuine SEAT batteries fulfil the maintenance, performance and safety spec-
ifications of your vehicle.
WARNING
•We recommend you use only maintenance-free or cycle free leak-proof 
batteries which comply with standards T 825 06 and VW 7 50 73. This 
standard applies as of 2001.•Before starting any work on the batteries, you must read and observe 
the warnings  ⇒ in “Warnings on handling the battery” on page 246.
For the sake of the environment
Batteries contain toxic substances such as sulphuric acid and lead. They 
m ust  b e  d isp ose d  of  app ro pr iate ly  a nd  m ust no t b e  disp ose d  of  wit h or di na r y 
household waste.
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