
Heating, Ventilation and Air conditioning 161
Safety First
Operating instructions
Practical tips
Te c h n i c a l  D a t a
When the   button is off (LED off), 
the heating, ventilation and air condi-
tioning system is off.
When the   button is off, the heating, ventilation and air conditioning 
system is switched off to save fuel. The temperature continues to self-regu-
late. The set temperature can then only be reached if it is higher than the 
ambient 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 160, fig. 134   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 temperatures outside, the air recirculation increases the effective-
ness of the heating system by heating 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 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 selecte
d, 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 syst em 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 notesThe impurity filter
The impurity filter (a combined particle filter and active carbon filter) serves 
as a barrier against impurities in the ambient 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 reaching very high 
pollution levels, the pollen filter must be changed more frequently than 
stated in the Service Schedule.
ACAC
DUAL
DUALDUAL
DUAL
A2
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Driving and the environment
190Driving and the environmentRunning-inRunning in a new engine
The engine needs to be run-in over the first 1,500 km.Up to 1,000 kilometres
– Do not drive faster than two thirds of top speed.
– Do not accelerate hard.
– Avoid high engine revolutions.
– Do not tow a trailer.
From 1000 to 1500 km
–Speeds can be gradually  increased to the maximum road speed 
or maximum permissible engine speed (rpm).During its first few hours of running, the internal friction in the engine is 
greater than later on, when all the moving parts have bedded in.
For the sake of the environment
If the engine is run in gently, its life  will be increased and its oil consumption, 
reduced.
Braking effect and braking distance
The braking effect and braking distance are influenced by 
driving situations and road conditions.The efficiency of the brakes depends directly on the  brake pad wear. The rate 
of wear of the brake pads depends to a great extent on the conditions under 
which the vehicle is operated and the way the vehicle is driven. If you often 
drive in town traffic, drive short distances or have a sporty driving style, we 
recommend that you have the thickness of your brake pads checked by an 
Authorised Service Centre more frequen tly than recommended in the Service 
Schedule.
If you drive with  wet brakes, for example, after crossing water areas, in heavy 
rainfall or even after washing the car, the effect of the brakes is lessened as 
the brake discs are wet or even frozen (in winter): The brakes should be 
“dried” by pressing the pedal to restore full braking effect.
WARNING
Longer braking distances and faults in the brake system increase the risk 
of accidents.•
New brake pads must be run in and  do not have the correct friction 
during the first 400 km. However, the reduced braking capacity may be 
compensated by pressing on the brake pedal a little harder. This also 
applies when new brake pads are fitted.
•
If brakes are wet or frozen, or if  you are driving on roads which have 
been gritted with salt, braking po wer may set in later than normal.
•
On steep stopes, if brakes are excessively used, they will overheat. 
Before driving down a long steep stopes, it is advisable to reduce speed 
and change down into a lower gear (or move the selector lever to a lower 
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Checking and refilling levels219
Safety First
Operating instructions
Practical tips
Te c h n i c a l  D a t a
– 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 diagram  ⇒page 273.
Engine oil specification  ⇒page 216.
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 qualified work-
shop.
For the sake of the environment
The oil level must never be above ar ea  . 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 213, “Safety instructions on wo rking 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 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.
AB
AA
AA
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Checking and refilling levels
226Brake 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 diagram ⇒ page 273. 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 noticeab
ly 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 73.
WARNING
Before opening the bonnet to check the brake fluid level, read and observe 
the warnings  ⇒page 213.Changing the brake fluid
The Maintenance Program 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 213 in 
“Working in the engine compartment”.
Brake fluid absorbs moisture. In the cour se 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 consider ably 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 the 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. 167  In the engine 
compartment: Brake fluid 
reservoir cover
AlteaXL_EN.book  Seite 226  Montag, 2. Februar 2009  12:26 12 

Checking and refilling levels229
Safety First
Operating instructions
Practical tips
Te c h n i c a l  D a t a
Charging 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 qualified 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 qualified 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 the st andards 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 227.
For the sake of the environment
Batteries contain toxic substances such as sulphuric acid and lead. They 
must be disposed of appropriately and must not be disposed of with ordinary 
household waste.
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