wheel Seat Leon SC 2013 Workshop Manual

226Intelligent technology
If the warning lamp remains on and the driver indication appears, the power
steering could be faulty.
Do not continue driving. Seek specialist assistance.  (in yellow) Steering: System fault! You may continue driving.
If the warning lamp comes on, the steering could react with more difficultly
or more sensitivity than normal. In addition, when driving in a straight line
the steering wheel may be off-centre.
Drive slowly to a specialised workshop and have the fault repaired.  (in yellow) Steering lock: fault! Go to an Official Service
The electronic steering lock is malfunctioning.
Go to a specialised workshop as soon as possible and have the fault re-
paired.
WARNING
Take it immediately to a specialised workshop and have the fault re-
paired: risk of accident!
Note
If a  red or  yellow warning lamp come on briefly, you can continue driv-
ing. 
Progressive steering
Depending on the vehicle's equipment, the progressive steering can adapt
steering hardness to the driving conditions. Progressive steering only works
when the engine is running. In city traffic
there is no need to turn the wheel so much when parking, ma-
noeuvring or in tight turns.
On the road or on motorways, the progressive steering transmits, e.g., on
bends, a sportier, more direct and perceptibly more dynamic sensation to
the steering wheel 
Power Management This system helps to ensure reliable starting
The power management controls the distribution of electri-
cal energy and thus helps to ensure that there is always
enough power available to start the engine.
If a vehicle with a conventional electrical system is left parked for a long
time, the battery will gradually lose its charge because certain electrical
equipment (such as the electronic gearbox lock) continues to draw current
even when the ignition is off. In some cases there may not be enough power
available to start the engine.
Your vehicle is equipped with an intelligent power management system to
control the distribution of electrical energy. This significantly improves relia-
bility when starting the engine, and also prolongs the useful life of the bat-
tery.
The main functions incorporated in the power management system are bat-
tery diagnosis , residual current management and dynamic power manage-
ment. 

233
Driving and the environment
● Use of recycled materials and/or materials originating from renewable
sources.
● Reduction of volatile components, including odour, in plastic materials.
● Use of CFC-free coolants.
Ban on heavy metals, with the exceptions dictated by law (Annex II of ELV
Directive 2000/53/EC): cadmium, lead, mercury, hexavalent chromium.
Manufacturing methods
● Reduction of the quantity of thinner in the protective wax for cavities.
● Use of plastic film as protection during vehicle transport.
● Use of solvent-free adhesives.
● Use of CFC-free coolants in cooling systems.
● Recycling and energy recovery from residues (RDF).
● Improvement in the quality of waste water.
● Use of systems for the recovery of residual heat (thermal recovery, en-
thalpy wheels, etc.).
● The use of water-soluble paints 
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235
Trailer
Note
● Towing a trailer places additional demands on the vehicle. We recom-
mend additional services between the normal inspection intervals if the ve-
hicle is used frequently for towing a trailer.
● Find out whether special regulations apply to towing a trailer in your
country. 
Ball coupling of towing bracket*
The ball coupling is provided with instructions on fitting and removing the
ball coupling of the towing bracket.
WARNING
The towing bracket ball coupling must be stored securely in the luggage
compartment to prevent them being flung through the vehicle and caus-
ing injury.
Note
● By law, the ball coupling must be removed if a trailer is not being towed
if it obscures the number plate. 
Driving tips
Driving with a trailer always requires extra care. Weight distribution
The weight distribution of a loaded trailer with an unladen vehicle is very
unfavourable. However, if this cannot be avoided, drive extra slowly to allow
for the unbalanced weight distribution. Speed
The stability of the vehicle and trailer is reduced with increasing speed. For
this reason, it is advisable not to drive at the maximum permissible speed
in an unfavourable road, weather or wind conditions. This applies especially
when driving downhill.
You should always reduce speed immediately if the trailer shows the slight-
est sign of
snaking. Never try to stop the “snaking” by increasing speed.
Always brake in due course. If the trailer has an overrun brake, apply the
brakes gently at first and then, firmly. This will prevent the jerking that can
be caused by locking of trailer wheels. Select a low gear in due course be-
fore going down a steep downhill. This enables you to use the engine brak-
ing to slow down the vehicle.
Reheating
At very high temperatures and during prolonged slopes, driving in a low
gear and high engine speed, always monitor the coolant temperature gauge
⇒ page 69.
Electronic Stability Control*
The ESC* system helps to stabilise the trailer in case of skidding or rocking. 
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239
Care and cleaning
Washing the car by hand
When washing the car by hand, use plenty of water to soften the dirt first,
and rinse off as well as possible.
Then clean the vehicle with a soft sponge, glove or brush using only slight
pressure. You should start on the roof and work down. Special car shampoo
should only be used for very persistent dirt.
Rinse the sponge or glove thoroughly and often.
Wheels, sills and similar should be cleaned last. Use a second sponge for
this.
WARNING
● The vehicle should only be washed with the ignition switched off.
Failure to do so could result in an accident.
● Do not clean the underside of chassis, the inside of wheel arches or
wheel trims without protecting your hands and arms. You may cut your-
self on sharp-edged metal parts. Otherwise, there is a risk of sustaining
cuts.
● When washing the car during the winter season: water and ice in the
brake system can reduce braking effectiveness: risk of accident!
CAUTION
● Do not wash the vehicle in direct sunlight – otherwise the paint can be
damaged.
● Do not use sponges, abrasive household sponges or similar to clean in-
sect remains. This could damage the surface.
● Clean off stubborn dirt (insects, etc.) from the headlights at regular in-
tervals, for instance when filling the fuel tank. The headlights should only
be washed with water, do not wipe them with a dry cloth or sponge. It is
best to use soapy water. ●
Never wash tyres with a jet that sprays the water out in a direct stream.
This could damage the tyres even if the spray is kept at a distance and only
used for a very short time.
● Before washing the vehicle in an automatic car wash, please make sure
to retract the exterior mirrors to prevent them from being damaged. Electri-
cally retractable exterior mirrors must not be folded in or out by hand. Al-
ways use the electrical power control.
CAUTION
● If you wash the vehicle in an automatic car wash, proceed as follows to
lock and prevent the windscreen wiper blades from being pushed up to-
wards the top of the windscreen:
–the bonnet must be closed
– switch the ignition on and off
– press the windscreen wiper lever downwards briefly towards the front
(windscreen wiper function). The windscreen wiper blades will be
locked.
For the sake of the environment
The car should only be washed in special wash bays. This prevents oily wa-
ter from getting into the public drains. In some places, washing vehicles
anywhere else may be prohibited. 
Sensors and camera lenses
● Use a small brush to remove snow and a de-icer spray to remove ice.
● Clean the sensors with a solvent-free product and a soft, dry cloth.
● Moisten the camera lens using a standard alcohol-based glass cleaning
agent and clean the lens with a dry cloth. The area in front of the active
Lane Assist* lens area is normally cleaned with the windscreen washer. 
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241
Care and cleaning
Carbon components
The carbon parts on your vehicle have a painted surface. They do not need
any special care and are cleaned just like any other painted part
⇒ page 238. 
Paint damage
Minor damage to the paint, such as scratches or stone chips, should be
touched up without delay before the metal starts to corrode. Suitable touch-
up brushes or sprays for your car can be obtained from a SEAT Official Serv-
ice.
The number of the original paint finish on the vehicle is given on the data
sticker ⇒  page 305.
If corrosion is already visible it must be thoroughly removed by a special-
ised workshop. 
Windows
Clear vision is an essential safety factor.
The windscreen must not be cleaned with insect remover or wax, otherwise
the windscreen wipers will not function properly (juddering).
Traces of rubber, oil, grease or silicone can be removed with a window
cleaning solution or a silicone remover. Wax residue can only be removed
with a special cleaner. Your SEAT Official Service will be able to provide you
with more detailed information.
The windows should also be cleaned on the inside at regular intervals. Use a separate cloth or chamois to dry the windows. Cloths used for waxing
and polishing contain residues that will cause smears on the glass.
WARNING
Do not use water-repellent coatings on the windscreen. In bad visibility
conditions (e.g. in the rain, dark or with a low sun), these coatings may
cause dazzle: risk of accident! Such coatings can also cause the wind-
screen wiper blades to make noise.
CAUTION
● Remove snow and ice from windows and exterior mirrors with a plastic
scraper only. To avoid scratches caused by dirt on the glass, the scraper
should only be pushed in one direction and not moved to and fro.
● The heating element for the rear window is located on the inner side of
the window. To avoid damaging them, do not apply stickers to the heating
elements.
● Never use warm or hot water to remove snow and ice from windows and
mirrors. This could cause the glass to crack! 
Rims
The wheels require regular attention to preserve their appearance. It is im-
portant to remove road salt and brake dust by washing the wheels at regu-
lar intervals, otherwise the finish will be impaired.
After washing, the wheels should only be cleaned with an "acid-free" clean-
ing agent for alloy wheels. This is available from SEAT Official Services and
specialist retailers. Never leave the cleaning agent on the rims for any lon-
ger than specified in the instructions before rinsing it off. If the wheel clean-
er fluid contains acid it can attack the surfaces of the wheel bolts. 
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242Care and cleaning
Car polish or other abrasive agents should not be used for maintaining the
rims. If the protective coating is damaged, e.g. by stone impact, the dam-
aged area should be touched up immediately.
WARNING
Please note when cleaning the wheels that water, ice and road salt can
impair the effectiveness of the brakes; this can cause an accident.

Exhaust tail pipe
It is important to remove road salt and brake dust by washing the wheels at
regular intervals, otherwise the exhaust tail pipe material could be dam-
aged. To remove impurities, do not use rim, paint or chrome cleaners or oth-
er abrasive products. Clean the exhaust tail pipes with cleaning products
that are suitable for stainless steel.
SEAT Official Services carry stocks of cleaning products that have been tes-
ted and approved for use on your vehicle. 
Care of the vehicle interior Radio display/Easy Connect* and control panel*
The display can be cleaned with a soft cloth and a professionally available
“LCD cleaner”. Moisten the cloth with a small amount of the cleaning fluid.
The Easy Connect control panel* should first be cleaned with a brush so
that no dirt goes into the device or between the keys and housing. Next, we
recommend cleaning the Easy Connect control panel* using a cloth damp-
ened with water and washing-up liquid.
CAUTION
● To avoid scratching the screen, do not wipe the display with a dry cloth.
● To avoid damage, ensure that no liquid goes into the Easy Connect con-
trol panel*. 
Plastic and leatherette parts
Plastic parts and leatherette can be cleaned with a damp cloth. If this is not
sufficient, plastic parts and leatherette should only be treated with a special
solvent-free plastic cleaner . 
Textile covers and trim parts
Textile covers and trim parts (e.g. seats, door trim) should be cleaned regu-
larly with a vacuum cleaner. This will remove surface dirt which could other-
wise be rubbed into the textile material during use. Do not use steam clean-
ers, as the steam could carry the dirt deeper into the textile material.
Normal cleaning
We recommend that you use a soft sponge or a commercially available lint-
free, micro-fibre cloth for normal cleaning. Only use brushes on floor cover-
ings and mats, as other textile surfaces could become damaged.
In the case of normal surface dirt you can use a foam cleaner. Use a sponge
to spread the foam on the textile surface and to work it into the material
lightly. However, make sure that the textile material does not become soak-
ing wet. Then dab off the foam with a dry and absorbent cloth (e.g. a micro-
fibre cloth) and vacuum off any residue once the surface is completely dry.
Cleaning stains
Treat drink stains (such as coffee or fruit juice, etc.) with a cleaning solution
for delicate fabrics. The cleaning product solution should be applied with a 

265
Wheels and tyres
Wheels and tyres
Wheels
General notes
– When driving with new tyres, be especially careful during the
first 500 km (300 miles).
– If you have to drive over a kerb or similar obstacle, drive very
slowly and as near as possible at a right angle to the obstacle.
– Check from time to time if the tyres are damaged (punctures,
cuts, cracks or dents). Remove any foreign objects embedded in
the treads.
– Damaged wheels and tyres must be replaced immediately.
– Keep grease, oil and fuel off the tyres.
– Replace any missing valve caps as soon as possible.
– Mark the wheels before taking them off so that they rotate in
the same direction when put back.
– When removed, the wheels or tyres should be stored in a cool,
dry and preferably dark place.
New tyres
New tyres do not give maximum grip straight away and should therefore be
“run in” by driving carefully and at moderate speeds for about the first 500
km (300 miles). This will also increase the useful life of the tyres. The tread depth of new tyres may
vary, according to the type and make of
tyre and the tread pattern.
Concealed damage
Damage to tyres and rims is often not readily visible. If you notice unusual
vibration or the car pulling to one side, this may indicate that one of the
tyres is damaged. Reduce speed immediately if there is any reason to sus-
pect that damage may have occurred. Inspect the tyres for damage. If no ex-
ternal damage is visible, drive slowly and carefully to the nearest special-
ised workshop and have the car inspected.
Tyres with directional tread pattern
An arrow on the tyre sidewall indicates the direction of rotation on single
drive tyres. Always note the direction of rotation indicated when mounting
the wheel. This guarantees optimum grip and helps to avoid aquaplaning,
excessive noise and wear.
Retrofitting Accessories
If you wish to change or fit wheels, rims or wheel trims, we recommend that
you consult with a SEAT Official Service centre for advice regarding current
techniques. 
Useful life of tyres
Correct inflation pressures and sensible driving habits will
increase the useful life of your tyres.
– Check tyre pressure at least once a month, and also prior to any
long trip. 
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266Wheels and tyres
–The tyre pressure should only be checked when the tyres are
cold. The slightly raised pressures of warm tyres must not be re-
duced.
– Adjust tyre pressure to the load being carried by the vehicle.
– In vehicles with a tyre pressure indicator, save the pressure of
modified tyres ⇒ page 214, ⇒  page 265.
– Avoid fast cornering and hard acceleration.
– Inspect the tyres for irregular wear from time to time.
The useful life of your tyres depends on the following factors:
Tyre pressure
Tyre pressure values are indicated on the inside of the fuel tank flap.
Insufficient or excessive pressure greatly reduces the useful life of the tyres
and adversely affects vehicle performance and ride. Correct inflation pres-
sures are very important, especially at high speeds.
If you want a more comfortable ride, you can inflate tyres to the pressure
corresponding to the normal vehicle load (up to 3 people) if the vehicle is
carrying a normal load. If the vehicle is going to carry the maximum load,
the tyre pressure should be increased to maximum value indicated.
The tyre pressure must be adjusted according to the load the vehicle is car-
rying. We recommend adhering to the tyre pressure specifications for a max-
imum load.
Do not forget the spare wheel when checking the tyre pressures: Keep the
spare wheel inflated to the highest pressure required for the road wheels.
In the case of a minimised temporary spare wheel (125/70 R16 or 125/70
R18) inflate to a pressure of 4.2 bar as indicated on the tyre pressure label
on the fuel tank flap. Driving style
Fast cornering, heavy acceleration and hard braking (squealing tyres) all in-
crease tyre wear.
Wheel balance
The wheels on new vehicles are balanced. However, certain circumstances
may lead to imbalance (run-out), which is detected as vibrations in the
steering wheel.
Unbalanced wheels should be rebalanced, as they otherwise cause exces-
sive wear on steering, suspension and tyres. A wheel must also be reba-
lanced when a new tyre is fitted or if a tyre is repaired.
Incorrect wheel alignment
Incorrect wheel alignment causes excessive tyre wear, impairing the safety
of the vehicle. If you notice excessive tyre wear, you should check wheel
alignment at a SEAT Official Service.
WARNING
● Always adapt the tyre pressure accordingly when the vehicle load
changes.
● A tyre with low air pressure has to flex a lot more when the vehicle is
heavily loaded or at high speeds, therefore causing overheating to occur.
Under these conditions, the tyre bead may be released or the tyre may
burst. Risk of accident!
For the sake of the environment
Under-inflated tyres will increase fuel consumption. 

267
Wheels and tyres
Indications of wear
Tread wear indicators indicate if a tyre is worn.
Fig. 161 Tyre tread:
tread wear indicators
The original tyres on your vehicle have 1.6 mm high “tread wear indicators”
running across the tread. Depending on the manufacturer, there will be 6 to
8 of them spaced at equal distances around the tyre. Markings on the tyre
sidewall (for instance the letters “TWI” or a triangle) indicate the positions
of the tread wear indicators.
The minimum tread depth required by law is 1.6 mm (measured in the tread
grooves next to the tread wear indicators). (Different figures may apply in
other countries.)
WARNING
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.
● Especially in difficult driving conditions such as wet or icy roads, it is
important that the tyres have sufficient tread depth. The tread depth
should same on the tyres of both the front and the rear axles.
● The decrease in driving safety due to insufficient tread depth is par-
ticularly evident in handling of the vehicle, when there is a risk of “aqua-
planing” over deep puddles and when driving around corners. Braking is
also adversely affected.
● The speed has to be adapted accordingly, otherwise there is a risk of
losing control over the vehicle.

Changing wheels
Fig. 162 Changing
wheels around 
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268Wheels and tyres
To ensure that the wear is equal on all tyres the wheels should be changed
round from time to time according to the system ⇒ Fig. 162. The useful life
of all the tyres will then be about the same time. 
Replacing wheels and tyres
It is important to use the correct wheels and tyres when re-
placement is necessary.
– All four wheels must be fitted with tyres of the same type, size
(rolling circumference) and preferably the same tread pattern.
– Tyres should be replaced at least in pairs and not individually
(i.e. both front tyres or both rear tyres together).
– Do not use tyres whose effective size exceeds the dimensions
of the factory-approved makes of tyre.
– If you wish to fit the vehicle with rims or tyres that are different
to those installed in manufacture, it is advisable to consult a
SEAT Official Service before purchasing them.
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 characteris-
tics of the vehicle and make a major contribution to good roadholding and
safe handling ⇒ 
.
The sizes of the rims and tyres approved for your vehicle are listed in the
vehicle documentation (e.g. EC Certificate of Conformity or COC docu-
ment 1)
). The vehicle documentation varies depending on the country of resi-
dence. A knowledge of tyre designations makes it easier to choose the correct
tyres. The following wording can be read on the sides of the tyre:
205/55 R16 91V
This contains the following information:
205Tyre width in mm55Height/width ratio in %RTyre construction: Radial16Rim diameter in inches91Load rating codeVSpeed index
The manufacturing date is also indicated on the tyre sidewall (possibly only
on the inner side of the wheel): DOT... 2212...
means that the tyre was produced in the 22nd week of 2012.
Please note that with some types of tyre, the actual tyre size can differ from
the nominal size marked on the tyre (for instance 205/55 R 16 91 W), and
there may be significant differences in the contours of the tyres, even
though the tyres are marked with the same nominal size designation.
When replacing the tyres, it is therefore important to make sure that the
actual size of the new tyres does not exceed the dimensions of the factory-
approved makes of tyre.
Failure to observe this requirement can affect the clearance needed for the
tyres. This could result in contact between the tyres and suspension com-
ponents or bodywork causing damage. The brake lines could also be dam-
aged and vehicle safety could be severely impaired ⇒ 
.
1)
COC = certificate of conformity