brake Seat Altea 2008 Service Manual

Wheels and tyres
232Changing wheels around
If the front tyres are worn considerably more than the rear ones it is advisable
to change them around as shown ⇒page 231, fig. 172. All the tyres will then
last for about the same time.
Wheel balance
The wheels on new vehicles are balanced. However, various factors encoun-
tered in normal driving can cause them to become unbalanced, which results
in steering vibration.
Unbalanced wheels should be rebalanced, as they otherwise cause excessive
wear on steering, suspension and tyre s. A wheel must also be rebalanced
when a new tyre is fitted.
Incorrect wheel alignment
Incorrect wheel alignment causes excessiv e tyre wear, impairing the safety of
the vehicle. If tyres show excessive wear, you should have the wheel align-
ment checked by an Authorised Service Centre.
WARNING
There is a serious danger of accidents if a tyre bursts during driving!•
The tyres must be replaced at the latest when the tread is worn down to
the tread wear indicators. Failure to do so could result in an accident. Worn
tyres do not grip well at high speeds on wet roads. There is also a greater
risk of “aquaplaning”.
•
At continuously high speeds, a tyre with insufficient pressure flexes
more. This causes it to overheat. This can cause tread separation and tyre
blow-out. Risk of accident. Always observe the recommended tyre pres-
sures.
•
If tyres show excessive wear, you should have the running gear checked
by an Authorised Service Centre.
•
Keep chemicals such as oil, fuel and brake fluid away from tyres.
•
Damaged wheels and tyres must be replaced immediately!
For the sake of the environment
Under-inflated tyres will increase fuel consumption.Puncture proof tyres
Anti-puncture tyres allow you to continue driving even with a
punctured tyre, in the majority of cases.Vehicles that are factory-fitted with puncture proof tyres
20)
indicate
on the instrument panel when there is a loss of tyre pressure.
Driving with anti-puncture tyres (emergency gear)
– Leave the ESP/TCS (electronic stabilisation programme) switched on, or switch on ⇒page 180.
– Continue driving carefully and slowly (80 km/h maximum).
– Avoid sudden manoeuvres and sharp turns.
– Avoid driving over obstacles (for example kerbs) or potholes.
– Look out for the ESP/TCS intervening often, smoke coming from the tyres or the smell of rubber, the vehicle vibrating or a clat-
tering noise. If any of these occur, stop the vehicle.
The anti-puncture tyres have a tag on the side of the tyre, with the description:
“DSST”, “Eufonia”, “RFT”, “ROF”, “RSC”, “SSR” or “ZP”.
The sides of this type of tyre are reinforced. When the tyres lose air they are
supported on the sides (emergency driving).20)Depending upon version and country.
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Wheels and tyres233
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
The loss of pressure in the tyre is shown on the instrument panel. You can
then drive a maximum of 80 km and if the circumstances are favourable (for
example, low load), even more.
The damaged tyre should be changed as soon as possible. The rim should be
checked in a specialist workshop to detect possible damage and replace it if
necessary. We recommend you contact Technical Service. If more than one
tyre is being used under emergency conditions, this reduces the distance
which can be travelled.
Starting driving in emergency conditions
At the moment the loss of tyre pressure is indicated on the instrument panel,
at least one of the tyres is driving in emergency mode
⇒.
End of emergency operation
Do not drive on if:
•
smoke is coming from one of the tyres,
•
there is a smell of rubber,
•
the vehicle vibrates,
•
there is a rattling noise.
When is it no longer possible to continue driving even using anti-puncture
tyres?
•
If the Electronic Stabilisation Pro gram (ESP) is out of operation.
•
If the tyre pressure monitoring system is out of operation.
•
If one of the tyres has been severely damaged in an accident, etc. If a tyre
has been badly damaged there is a risk that parts of the tread can be thrown
off and cause damage to the fuel lines, brake pipes or fuel filler.
•
It is also advisable to stop driving if severe vibrations occur, or if the wheel
starts overheating and gives off smoke.
WARNING
When driving in emergency conditions, the driving quality of the vehicle is
considerably impaired.•
The maximum permitted speed of 80 km/h is subject to road and
weather conditions. Please observe legal requirements when doing so.
•
Avoid sharp turns and rapid manoeuvres, and brake earlier than usual.
•
Avoid driving over obstacles (for example kerbs) or potholes.
•
If one or more tyres is being driven in emergency conditions, the driving
quality of the vehicle is impaired and there is a risk of accident.Note
•
The anti-puncture tyres do not “deflate” on losing pressure because they
are supported on the reinforced sides. Therefore defects in the tyre can not be
detected with a visual inspection.
•
Snow chains must not be used on front tyres used in emergency
conditions.
New tyres and wheels
New tyres and wheels have to be run-in.The tyres and wheel rims are an essential part of the vehicle's design. The
tyres and rims approved by SEAT are specially matched to the characteristics
of the vehicle and make a major contribution to good road holding and safe
handling ⇒.
Tyres should be replaced at least in pair s and not individually (i.e. both front
tyres or both rear tyres together). A knowledge of tyre designations makes it
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Wheels and tyres
234easier to choose the correct tyres. Radial tyres have the tyre designations
marked on the sidewall, for example:
195/65 R15 91T
This contains the following information:
195 Tyre width in mm
65 Height/width ratio in %
R Tyre construction: Radial
15 Rim diameter in inches
91 Load rating code
T Speed rating
The tyres could also have the following information:•
A direction of rotation symbol
•
“Reinforced” denotes heavy-duty tyres.
The manufacturing date is also indicated on the tyre sidewall (possibly only
on the inner side of the wheel).
“DOT ... 1103 ...” means, for example, that the tyre was produced in the 11th
week of 2003.
We recommend that work on tyres and wheels is carried out by an Authorised
Service Centre. They are familiar with the procedure and have the necessary
special tools and spare parts as well as the proper facilities for disposing of
the old tyres.
Any Authorised Service Centre has full information on the technical require-
ments when installing or changing tyres, wheels or wheel trims.
WARNING
•
We recommend that you use only wheels and tyres which have been
approved by SEAT for your model. Failure to do so could impair vehicle
handling. Risk of accident.
•
Avoid running the vehicle on tyres that are more than six years old. If
you have no alternative, you should dr ive slowly and with extra care at all
times.
•
Never use old tyres or those with an unknown “history of use”.
•
If wheel trims are retrofitted, you must ensure that the flow of air to the
brakes is not restricted. This could cause them to overheat.
•
All four wheels must be fitted with radial tyres of the same type, size
(rolling circumference) and the same tread pattern.For the sake of the environment
Old tyres must be disposed of accordi ng to the laws in the country concerned.
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 - for example with winter tyres - you should only use the spare tyre for
a short period of time and drive with ex tra 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
WARNING (continued)
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Wheels and tyres235
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
heads must be used. This ensures that wheels are fitted securely and that the
brake system functions correctly.
In certain circumstances, you may not
use wheel bolts from a different car -
even if it is the same model ⇒page 207.
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 tight-
ening 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 could 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 vehicles
handling. The design of summer tyre s (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 pressures
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 regis-
tration 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.
The speed rating code ⇒page 233, “New tyres and wheels” determines the
following speed limits: ⇒ ⇒
Q max. 160 km/h
S max. 180 km/h
T max. 190 km/h
H max. 210 km/h
In some countries, vehicles which can exceed the speed rating of the fitted
tyre must have an appropriate sticker in the driver's field of view. These
stickers are available from your Authorised Service Centre. The legal require-
ments of each country must be followed.
Do not have winter tyres fitted for unnecessarily long periods. Vehicles with
summer tyres handle better when the roads are free of snow and ice.
If you have a flat tyre, please refer to the notes on the spare wheel
⇒ page 233, “New tyres and wheels”.
WARNING
The maximum speed for the winter tyres must not be exceeded. Otherwise,
this could lead to tyre damage and thus, an accident risk.
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If and when239
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Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
Note
•
Seek professional assistance if the repair of a tyre puncture is not
possible with the sealing compound.
Wheel changePreparation work
What you must do before changing a wheel.– If you have a flat tyre or puncture, park the vehicle as far away from the flow of traffic as possible. Choose a location that is as
level as possible.
– All passengers should leave the vehicle. They should wait in a safe area (for instance behind the roadside crash barrier).
– Switch off the engine. Switch on the hazard warning lights.
–Apply the handbrake firmly.
–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 position.
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 wheelChange the wheel as described below
– Remove the wheel cover. Also refer to ⇒page 240, fig. 174 .
–Slacken the wheel bolts.
– Raise the car with the jack in the corresponding zone.
– Ta k e o f f the wheel and then put on the spare wheel.
– Lower the vehicle.
– Tighten the wheel bolts firmly i n d i a go na l s e q u e n ce wi t h t h e b ox
spanner.
–Replace the hub cap.
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If and when
246
NoteSeek professional assistance if the repair of a tyre puncture is not possible
with the sealing compound.Preparation work
Certain steps must be taken before repairing a tyre.– If you have a flat tyre or puncture, park the vehicle as far away from the flow of traffic as possible.
–Apply the handbrake firmly.
–Engage first gear, or put the selector lever to position P.
– All passengers should leave the vehicle. They should wait in a
safe area (for instance behind the roadside crash barrier).
– Check whether a repair is possible using the Tyre Mobility System “General information and safety notes.”
– Unscrew inflation cap from the affected wheel.
– Take the tyre repair kit out of the luggage compartment.
WARNING
Put the hazard warning lights on and pl ace the warning triangle in position.
This is for your own safety and also warns other road users.
Caution
Take special care if you have to repair a tyre on a gradient.
Note
Please observe legal requirements when doing so.Tyre repair
The following sections describe the procedures for repairing
a tyre.Using the sealing compound
– The instructions on the container give detailed information on how to use the sealing compound.
Inflating the tyre.
– Remove the air compressor and hose from the container.
– Screw the retaining nut onto the valve.
– Plug the compressor cable into a 12 volt socket.
– Turn on compressor and monitor the pressure shown on the pres- sure gauge.
Completing the repair
– Remove the compressor hose from the valve.
– Fit the valve cap.
– Unplug the compressor from the socket.
– Return all tools to their proper storing location.
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If and when
250
21 Cable control unit 7,5
22 Volumetric alarm sensor/ Alarm horn 5
23 Diagnosis / Rain sensor / Light switch 10
24 Vacant
25 Switchboard coupling automatic gearbox 20
26 Vacuum pump 20
27 RSE input (roof screen) 10
28 Rear wiper motor / Switchboard wiring 20
29 Vacant
30 Cigarette lighter / socket 20
31 Vacant
32 Vacant
33 Heater 40
34 Vacant
35 Vacant
36 Engine management 10
37 Engine management 10
38 Engine management 10
39 Trailer control unit (coupling) 15
40 Trailer control unit (indicat ors, brakes and left side) 20
41 Trailer control unit (fog light, reversing light and right side) 20
42 Vacant
43 Trailer pre-installation 40
44 Rear window heater 25
Number
Consumer Amperes
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If and when253
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Operating instructions
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19
Clean 30
20 Vacant
21 Lambda probe 15
22 Brake pedal, speed sensor 5
23 Engine management
5
Engine management 10
Engine management 15
24 AKF, gearbox valve 10
25 Right lighting 40
26 Left lighting 40
27 Engine management
40
Engine management 50
28 Ignition key 40
29 Electric windows (front and back)
50
Electric windows (front) 30
30 Ignition key 40
Number
Consumer Amperes
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If and when
258Side lights– Raise the bonnet.
– Remove the cover ⇒fig. 188 by pulling on this. – Extract the lamp holder
⇒fig. 189 outwards.
– Replace the bulb by pulling this out and inserting the replace- ment.
– Installation is done in the reverse order.
Rear lights•
Side lights
•
Brake lights
•
Turn signals
•
Reversing lights
•
Rear fog light
Fig. 188 Side lightsFig. 189 Side lights
AD
A1
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If and when259
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
Side lights and brake lights– Open the tailgate
– Remove the bolts ⇒fig. 190 . – Remove the cover of the luggage compartment lateral panel.
– Unscrew the plastic fitting
⇒fig. 191 securing the rear light.
Inserting a screwdriver under the plastic fitting may help to
loosen it.
– Partially remove the rear light from its casing taking care not to pull on the cable.
– Remove the lamp holder connector.
– Unscrew the bolts ⇒page 260, fig. 192 from the lamp holder
and pull on this.
– Press on the lamp and rotate to the left then fit the replacement.
– To refit follow the steps in reverse order, taking special care when fitting the lamp holder. The metal contacts of the lamp holder
ends should be correctly fitted with respect to the rear light
contacts.
Fig. 190 Side lights and
brake lightsFig. 191 Side lights and
brake lights
AA
ABAC
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