2012 Seat Altea ECU

231
Checking and refilling levels
WARNING (Continued)
● 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 clothing and long hair do not get trap-
ped in rotating engine parts. Danger of death. Before starting any
work remove jewellery, tie back and cover hair, and wear tight-fitting
clothes.
– Never accelerate with a gear engaged without taking the necessary
precautions. The vehicle could move, even if the handbrake is ap-
plied. Danger of death.
● If work has to be carried out on the fuel system or on electrical com-
ponents, you must observe the following safety 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.WARNING (Continued)
– Never work near naked flames.
– Always have a fire extinguisher on hand.
CAUTION
When topping up service fluids, make sure not to mistake them. Using the
wrong fluids could cause serious malfunctions and engine damage!
For the sake of the environment
Service fluids leaks are harmful to the environment. For this reason you
should make regular checks on the ground underneath your vehicle. If you
find spots of oil or other fluids, have your vehicle inspected in a specialised
workshop. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

232Checking and refilling levels
Opening the bonnet
The bonnet is released from inside the vehicle.
Fig. 161 Detail of foot-
well area on driver side:
lever for unlocking the
bonnet.
Fig. 162 Arrester hook
for bonnet.
Before opening the bonnet ensure that the windscreen wipers are
in rest position. –
To release the bonnet, pull the lever under the dash panel
⇒ fig. 161 in the direction indicated (arrow). The bonnet will be
released by a spring action ⇒ 
.
– Lift the bonnet using the release lever (arrow) and open the
bonnet.
– Release the bonnet stay and secure it in fixture designed for
this in the bonnet.
WARNING
Hot coolant can scald!
● Never open the bonnet if you see steam, smoke or coolant escaping
from the engine compartment.
● Wait until no more steam, smoke or coolant is emitted from the bon-
net, then carefully open the bonnet.
● When working in the engine compartment, always observe the safety
warnings ⇒ page 230.

Closing the bonnet
– Raise the bonnet slightly
– Release the bonnet stay and replace it in its support.
– At a height of about 30 cm let it fall so it is locked.
If the bonnet does not close, do not press downwards. Open it once more
and let it fall as before. 

233
Checking and refilling levels
WARNING
If the bonnet is not closed properly, it could open while you are driving
and completely obscure your view of the road. Risk of accident.
● After closing the bonnet, always check that it is properly secured. The
bonnet must be flush with the surrounding body panels.
● If you notice that the bonnet latch is not secured when the vehicle is
moving, stop the vehicle immediately and close the bonnet properly.
Risk of accident.

Engine oil General notes
The engine comes with a special, high quality, multi grade oil that can be
used in all seasons of the year except for those regions affected by extreme
cold.
As the use of good quality oil is necessary for the correct operation and long
service life of the engine, when it becomes necessary to replenish or
change the oil, always use an oil that complies to the VW standards.
The specifications (VW standards) set out in the following page should ap-
pear on the container of the service oil; when the container displays the
specific standards for petrol and diesel engines together, it means that the
oil can be used for both types of engines.
We recommend that the oil change, indicated in the Maintenance Pro-
gramme, be performed by an Authorised Service Centre or a specialised
workshop.
The correct oil specifications for your engine are listed in ⇒ page 234, Oil
properties. Service intervals
Service intervals can be flexible (LongLife service) or fixed (dependent on
time/distance travelled).
If the PR code that appears on the back of the Maintenance Programme
booklet is QG1, this means that your vehicle has the LongLife service pro-
grammed. If it has the codes QG0 or QG2 the interval service is dependent
on time/distance travelled.
Flexible service intervals (LongLife*)
Special oils and processes have been developed which, depending on the
characteristics and individual driving profiles, allow to extend the oil
change service (LongLife service intervals).
Because this oil is essential for extending the service intervals, it
must only
be used observing the following indications:
● Avoid mixing it with oil for fixed service intervals.
● Only in exceptional circumstances, if the engine oil level is too low
⇒ page 234 and LongLife oil is not available, it is permitted to top up
(once) with oil for fixed service intervals ⇒  page 234 (up to a maximum of
0.5 litres).
Fixed service intervals*
If your vehicle does not have the “LongLife service interval” or it has been
disabled (by request), you may use oils for fixed service intervals, which al-
so appear in ⇒ page 234, Oil properties. In this case, your vehicle must be
serviced after a fixed interval of 1 year / 15 000 km (whatever comes first)
⇒ Booklet Maintenance Programme.
● In exceptional circumstances, if the engine oil level is too low
⇒ page 234 and you cannot obtain the oil specified for your vehicle, you
can put in a small quantity of oil conforming to the specification ACEA A2 or
ACEA A3 (petrol engines) or ACEA B3 or ACEA B4 (diesel engines) (up to 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
0.5 l).

253
Wheels and tyres
For the sake of the environment
Old tyres must be disposed of according to the laws in the country con-
cerned.
Note
● For technical reasons, it is not generally possible to use the wheels from
other vehicles. This can also apply to wheels of the same model. The use of
wheels or tyres which have not been approved by SEAT for use with your
model may invalidate the vehicle's type approval for use on public roads.
● If the spare tyre is not the same as the tyres that are mounted on the
vehicle (e.g. winter tyres) you should only use the spare tyre for a short peri-
od of time and drive with extra care. Refit the normal road wheel as soon as
possible. 
Wheel bolts
Wheel bolts must be tightened to the correct torque.
The design of wheel bolts is matched to the rims. If different wheel rims are
fitted, the correct wheel bolts with the right length and correctly shaped
bolt heads must be used. This ensures that wheels are fitted securely and
that the brake system functions correctly.
In certain circumstances, you should not use wheel bolts from a different
vehicle, even if it is the same model ⇒ page 221.
After the wheels have been changed, the tightening torque of the wheel
bolts should be checked as soon as possible with a torque wrench ⇒ 
.
The tightening torque for steel and alloy wheels is 120 Nm.
WARNING
If the wheel bolts are not tightened correctly, the wheel could become
loose while driving. Risk of accident.
● The wheel bolts must be clean and turn easily. Never apply grease or
oil to them.
● Use only wheel bolts which belong to the wheel.
● If the torque of the wheel bolts is too low, they could loosen whilst
the vehicle is in motion. Risk of accident! If the tightening torque is too
high, the wheel bolts and threads can be damaged.
CAUTION
The prescribed torque for wheel bolts for steel and alloy wheels is 120 Nm. 
Winter tyres
Winter tyres will improve the vehicles handling on snow and
ice.
In winter conditions winter tyres will considerably improve the vehicle's han-
dling. The design of summer tyres (width, rubber compound, tread pattern)
gives less grip on ice and snow.
Winter tyres must be inflated to a pressure 0.2 bar higher than the pres-
sures specified for summer tyres (see sticker on tank flap).
Winter tyres must be fitted on all four wheels.
Information on permitted winter tyre sizes can be found in the vehicle's reg-
istration documents. Use only radial winter tyres. All tyre sizes listed in the
vehicle documentation also apply to winter tyres.
Winter tyres lose their effectiveness when the tread is worn down to a depth
of 4 mm. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

257
If and when
– Engage the first gear , or put the selector lever to position P for
those vehicles with an automatic gearbox.
– If you are towing a trailer, unhitch it from your vehicle.
– Take the vehicle tools and the spare wheel out of the luggage
compartment.
WARNING
Put the hazard warning lights on and place the warning triangle in posi-
tion. This is for your own safety and also warns other road users.
CAUTION
If you have to change the tyre on a gradient, block the wheel opposite the
wheel being changed by placing a stone or similar object under it to prevent
the vehicle from rolling away.
Note
Please observe legal requirements when doing so. 
Changing a wheel
Change the wheel as described below
– Remove the wheel cover . Also refer to ⇒ fig. 175
– Slacken the wheel bolts .
– Raise the vehicle with the jack at the corresponding area
– Remove the wheel and put on the spare one –
Lower the vehicle.
– Tighten the wheel bolts firmly with the box spanner
– Replace the hub cap. 
After changing a wheel
After changing the wheel there are still tasks to complete. – Put the tools and jack back in the luggage compartment.
– Place the wheel with the defective tyre in the luggage compart-
ment and secure it.
– Check the tyre pressure of the newly fitted tyre as soon as pos-
sible.
– Have the tightening torque of the wheel bolts checked as soon
as possible with a torque wrench. The prescribed torque must
be 120 Nm.
Note
● If you notice that the wheel bolts are corroded and difficult to turn when
changing a wheel, they must be replaced before having the wheel bolt tor-
que checked.
● For safety reasons, drive at moderate speeds until the wheel bolt tight-
ening torque has been checked. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

259
If and when
Loosening the wheel bolts
The wheel bolts must be loosened before raising the vehicle.
Fig. 176 Changing the
wheel: loosen the wheel
bolts
Loosening
– Fit the box spanner as far as it will go over the wheel bolt.
– Grasp the box spanner by the end turn it about one full turn to
the left ⇒ fig. 176.
Tightening
– Fit the box spanner as far as it will go over the wheel bolt.
– Grasp the box spanner close to the end and turn the bolt to the
right until it is secured.
– An adapter is required to unscrew or tighten the anti-theft
wheel bolts.
WARNING
Loosen the wheel bolts only about one turn before raising the vehicle
with the jack, loosening the wheel bolts more than one turn can result in
an accident.
Note
● If the wheel bolt is very tight, you may be able to loosen it by pushing
down the end of the spanner carefully with your foot. Hold on to the vehicle
for support and take care not to slip. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

273
If and when
Side lights/ brake lights
Fig. 190 Side lights and
brake lights
Fig. 191 Side lights and
brake lights
– Open the tailgate.
– Remove the bolts ⇒ fig. 190 A
. –
Remove the cover of the luggage compartment lateral panel.
– Unscrew the plastic fitting ⇒ fig. 191 B
securing the tail light.
Inserting a screwdriver under the plastic fitting may help to
loosen it.
– Partially remove the tail light from its casing taking care not to
pull on the cable.
– Remove the bulb holder connector.
– Unscrew the bolts ⇒ fig. 192 C
from the bulb holder and pull
on this.
– Press on the bulb and rotate to the left then fit the replacement.
– To refit follow the steps in reverse order, taking special care
when fitting the bulb holder. The metal contacts of the bulb
holder ends should be correctly fitted with respect to the tail
light contacts. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

C
Car care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 203
CCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
CD changer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Central lock button Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Central locking . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Automatic locking system for involuntaryunlocking . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Automatic speed-dependent locking and unlocking system . . . . . . . . . . . . . . . . . . . 99
Emergency unlocking system . . . . . . . . . . . 99
Selective unlocking system . . . . . . . . . . . . . 98
Unlocking system . . . . . . . . . . . . . . . . . . . . . 99
Centre armrest . . . . . . . . . . . . . . . . . . . . . . . . . 142
Cetane number . . . . . . . . . . . . . . . . . . . . . . . . . 229
Changing gear see Manual gearbox . . . . . . . . . . . . . . . . . . 179
Changing gear in tiptronic mode . . . . . . . . . . 183
Changing the bulbs Main headlight bulbs . . . . . . . . . . . . . . . . . 269
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Changing the main headlight bulbs Main beam lights . . . . . . . . . . . . . . . . . . . . 271
Side lights . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Turn signal bulbs . . . . . . . . . . . . . . . . . . . . 269
Changing the main headlight lamps dipped lights . . . . . . . . . . . . . . . . . . . . . . . 270 Changing the tail lights
Luggage compartment lights . . . . . . . . . . 275
Rear fog light . . . . . . . . . . . . . . . . . . . . . . . 274
Reverse light . . . . . . . . . . . . . . . . . . . . . . . . 274
Side lights . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Turn signal light . . . . . . . . . . . . . . . . . . . . . 274
Changing windscreen wiper blades . . . . . . . . 240
Chassis number . . . . . . . . . . . . . . . . . . . . . . . . 284
Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Checking battery electrolyte level . . . . . . . . . . 245
Checking engine oil level . . . . . . . . . . . . . . . . . 234
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Categorisation in groups . . . . . . . . . . . . . . . 48
Group 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Group 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Group 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Groups 0 and 0+ . . . . . . . . . . . . . . . . . . . . . . 48
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 46
Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Child seats ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . 52
on the front passenger seat . . . . . . . . . . . . . 31
Top Tether system . . . . . . . . . . . . . . . . . . . . 52
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . . 151
Cleaning alloy wheel rims . . . . . . . . . . . . . . . . 217
Cleaning chrome . . . . . . . . . . . . . . . . . . . . . . . 216
Cleaning engine compartment . . . . . . . . . . . . 218
Cleaning steel wheel rims . . . . . . . . . . . . . . . . 217
Cleaning windows . . . . . . . . . . . . . . . . . . . . . . 215
Climatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Climatronic
General notes . . . . . . . . . . . . . . . . . . . . . . . 167
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Clothes hook . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Cloth seat covers cleaning . . . . . . . . . . . . . . . . 219
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Compartment for on-board documentation . . 142
Control lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Control lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Controls electric windows . . . . . . . . . . . . . . . . . . . . . 111
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 133
Sliding/tilting sunroof . . . . . . . . . . . . . . . . 113
Convenience closing Sliding/tilting sunroof . . . . . . . . . . . . . . . . 114
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Convenience opening Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 66
Coolant level . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 82
Coolant loss . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Coolant temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Safety instructions . . . . . . . . . . . . . . . . . . . . 82
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 82
Cornering lights Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Correct adjustment of front seat head re- straints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
302 Index