service Seat Leon 5D 2009 Owner's Guide

Cleaning and caring for your vehicle
200A good quality hard wax product is available from your Authorised Service
Centre.
Regular wax applications help to protects the paintwork from environmental
contaminants. ⇒page 197. It also protects against minor scratches.
Even if a wax solution is used regularly in the car washing tunnel, it is advis-
able to protect the paint with a hard wax coating at least twice a year.Polishing the paintwork
Polishing brings back gloss to the paintwork.Polishing is only necessary if the paint has lost its shine, and the gloss cannot
be brought back by applying wax. Polishing products can be purchased in
your Authorised Service Centre.
The car must be waxed after polishing if the polish used does not contain wax
compounds to seal the paint ⇒page 199, “Vehicle paint maintenance
requirements”.
Caution
To prevent damage to the paintwork:•Do not use polishes and hard wax on painted parts with a matte finish or
on plastic parts.•Do not polish your vehicle in a sandy or dusty environment.
Caring for plastic parts
Solvents damage plastic parts.If normal washing fails to clean plastic parts, clean them with approved
solvent-free plastic cleaning and care products.
Caution
•The use of liquid air freshener directly over the air vents of the vehicle may
damage the plastic parts if the liquid is accidentally spilled.•Cleaning products which contain solvents will damage the material.Cleaning windows and exterior mirrorsCleaning windows
– Moisten the windows with commercially available, alcohol based glass cleaner.
– Dry the windows with a clean chamois leather or a lint-free cloth.
Removing snow
– Use a small brush to remove sn ow from the windows and mirrors.
Removing ice
–Use a de-icer spray.Use a clean cloth or chamois leather to dry the windows. The chamois
leathers used on painted surfaces are not suitable to clean windows because
they are soiled with wax deposits which could smear the windows.
Leon_EN.book Seite 200 Dienstag, 8. September 2009 5:25 17

Cleaning and caring for your vehicle201
Safety First
Controls and equipment
Practical tips
Technical Data
If possible, use a de-icing spray to remove ice. If you use an ice scraper, push
it in one direction only without swinging it.
Use window cleaner or a silicone remover
to clean rubber, oil, grease and sili-
cone deposits off.
Wax deposits can be removed with a special cleaner available in your Author-
ised Service Centre. Wax deposits on the windscreen could cause the wiper
blades to judder. If a window cleanser, specifically for removing wax, is added
to the windscreen washer fluid prevents wiper blades from juddering. Wax
deposits are not removed.
Caution
•Never use warm or hot water to remove snow and ice from windows and
mirrors. This could cause the glass to crack!•The heating element for the rear window is located on the inner side of the
window. To prevent damage, do not put stickers on the heating elements
inside the window.Cleaning windscreen wiper bladesClean wiper blades are essent ial to provide clear vision.
1. Use a soft cloth to remove dust and dirt from the windscreen wiper blades.
2. Use window cleanser to clean the windscreen wiper blades. Use
a sponge or a cloth to remove stubborn stains.
Rubber seals maintenance
If rubber seals are well looked after, they will not freeze so
quickly.1. Use a soft cloth to remove dust and dirt from the rubber seals.
2. Apply a specialist care product to the rubber seals.The strips on the doors, windows, bonnet and rear lid will remain pliable and
last longer if they are treated with a suitable care product (for example sili-
cone spray).
Caring for rubber seals will also prevent premature ageing and leaks. The
doors will be easier to open. If rubber seals are well looked after, they will not
freeze so quickly in winter.Door lock cylinders
The door lock cylinders can freeze up in winter.To de-ice the lock cylinders you should only use spray with lubricating and
anti-corrosive properties.Cleaning chrome parts1. Clean chrome parts with a damp cloth.
2. Polish chrome parts with a soft, dry cloth.
Leon_EN.book Seite 201 Dienstag, 8. September 2009 5:25 17

Cleaning and caring for your vehicle203
Safety First
Controls and equipment
Practical tips
Technical Data
Underbody sealant
The vehicle underbody is coated to protect it from chemical
and mechanical damage.The protective coating can be damaged when driving. We recommend you to
check the protective coating under the body and on the running gear, and
reinstated if necessary, before and after the winter season.
We recommend you to go to your Authorised Service Centre to carry out repair
work and additional anti-corrosion work.
WARNING
Do not apply underseal or anti-corrosion coatings to the exhaust pipes,
catalytic converter or the heat shields on the exhaust system. The heat of
the exhaust system or the engine could cause them to ignite! Fire hazard.Cleaning the engine compartment
Take special care when cleaning the engine compartment.Anti-corrosion treatment
The engine compartment and the surface of the power unit are given anti-
corrosion treatment at the factory.
Good corrosion protection is particularly important in winter when the car is
frequently driven on salted roads. To prevent the salt corroding the vehicle,
the entire engine compartment should be thoroughly cleaned before and
after winter.
Yo u r A u t h o r i s e d S e r v i ce Ce n t re has got the necessary equipment to provide
the correct cleaning and preserving products. For this reason, we recommend
having this work performed by them. The anti-corrosion protection is usually removed if the engine compartment
is cleaned with grease removing solutions, or if you have the engine cleaned.
On commissioning this work, ensure that all surfaces, seams, joints and
components in the engine compartment are given anti-corrosion treatment.
WARNING
•When working in the engine compartment, always observe the safety
warnings ⇒page 215.•Before opening the bonnet, switch the engine off, apply the parking
brake firmly and always remove the key from the ignition.•Allow the engine to cool before you clean the engine compartment.•Do not clean the vehicle underbody, wheel arches without protecting
your hands and arms. You may cut yourself on sharp-edged metal parts.
Failure to comply could result in injury.•Moisture, ice and salt on the brakes may affect braking efficiency. Risk
of accident. Directly after washing, avoid sudden and sharp braking.•Never touch the radiator fan. It is temperature-controlled and could
start automatically, even when the key is removed from the ignition!For the sake of the environment
Fuel, grease and oil deposits could be removed when the engine is washed.
The polluted water must be cleaned in an oil separator. For this reason,
engine washing should be carried out only by a qualified workshop or a petrol
station.
Leon_EN.book Seite 203 Dienstag, 8. September 2009 5:25 17

Cleaning and caring for your vehicle
204Vehicle interior maintenancePlastic parts and dash panel cleaning– Use a clean, damp cloth to clean plastic parts and the dash
panel.
– If this does not provide satisfactory results, use a special solvent-free plastic cleaning product.
WARNING
Never clean the dash panel and the airbag module surface with cleansers
containing solvents. Solvents cause the surface to become porous. If the
airbag triggered, disintegrating plastic parts could cause substantial inju-
ries.
Caution
Cleaning products which contain solvents will damage the material.Wooden trim cleaning*– Clean the wooden trim with a water-moistened clean cloth.
– If this does not provide satisfactory results, use a gentle soap
solution.
CautionCleaning products which contain solvents will damage the material.
Cleaning the radio and climate controlsTo clean the radio and/or climate controls, use a soft damp cloth. For more
resistant dirt, a neutral soap solution may be used.Cloth seat covers and fabric trim cleaningCloth seat covers and fabric trim on the doors, headlining etc. can be cleaned
with a special interior cleanser or with dry foam and a soft brush.Leather cleaning*Normal cleaning
– Moisten a cotton or woollen cloth with water and wipe over the leather surfaces.
Cleaning stubborn stains
– More stubborn dirt can be removed using a mild soap solution (pure liquid soap; two tablespoons diluted in one litre of water)
and a cloth.
– Do not let the water soak through the leather or soak into the seams.
– Then wipe off with a soft, dry cloth.
Leather maintenance
– The leather should be treated twice a year with a special leather- care product, available in your Authorised Service Centre.
Leon_EN.book Seite 204 Dienstag, 8. September 2009 5:25 17

Accessories, parts replacement and modifications
206Accessories, parts replacement and modificationsAccessories and partsAlways consult an Authorised Service Centre before
purchasing accessories and parts.Your vehicle is designed to offer a high standard of active and passive safety.
Before purchasing accessories and parts, and before making technical
changes to your car, we recommend you to consult your Authorised Service
Centre.
SEAT dealerships will be happy to provide you with the latest information
about the use, legal requirements and recommendations from the manufac-
turer regarding accessories and parts.
We recommend you use only SEAT Approved Accessories
® and SEAT
Approved Spare Parts
®. This way, SEAT can guarantee that the product in
question is suitable, reliable and safe. SEAT Authorised Service Centres have
the necessary experience and facilities to ensure that parts are correctly and
professionally installed.
Despite a continuous observation of the market, SEAT is not able to assess
the reliability, safety and suitability of those parts SEAT has not approved. For
this reason, SEAT cannot assume responsibility for any non-genuine parts
used, even if these parts have been approved by an official testing agency or
are covered by an official approval certificate.
Any equipment subsequently installed which has a direct effect on the
ve hi cle a nd/ or the way i t is d ri ve n ( e. g. cr u is e co ntrol s ys te m o r e lec tro ni ca lly-
controlled suspension) must be approved by SEAT and bear the e mark (the
European Union's authorisation symbol).
If any additional electrical components are fitted so that they do not serve to
control the vehicle itself (for instance a refrigerator box, laptop or ventilator fan, etc.), then they must bear the
CE mark (European Union manufacturer
conformity declaration).
WARNING
Accessories, for example telephone holders or drink holders, should never
be fitted on the covers of, or within the working range of the airbags. Other-
wise, there is a danger of injury if the airbag is triggered in an accident.Technical modificationsModifications must always be carried out according to our
specifications.Unauthorised modifications to the electronic components or software in the
vehicle may cause malfunctions. Due to the way the electronic components
are linked together in networks, other indirect systems may be affected by the
faults. This can seriously impair safety, lead to excessive wear of compo-
nents, and also invalidate your vehicle registration documents.
SEAT Authorised Service Centres cannot be held liable for any damage
caused by modifications and/or work incorrectly performed.
For this reason, we recommend you that all work should be performed by an
Authorised Service Centre using genuine and SEAT
® approved parts and
accessories .
Leon_EN.book Seite 206 Dienstag, 8. September 2009 5:25 17

Accessories, parts replacement and modifications207
Safety First
Controls and equipment
Practical tips
Technical Data
WARNING
Incorrectly performed modifications or other kind of work on your vehicle
can lead to malfunctions and cause accidents.Roof aerial*The vehicle may be fitted with a foldable* and anti-theft* aerial that may be
positioned parallel to the roof.
To f o l d d o w n
Unscrew the rod, position parallel to the roof and tighten once again.
To return to working position
Continue in the reverse order to the previous instruction.
Caution
If an automatic car wash tunnel is used, before entering the tunnel, put the
aerial down parallel to the roof and do not tighten to avoid damage.Mobile telephones and radiotelephonesFirst consult your Authorised Service Centre if you wish to use a mobile tele-
phone or a two-way radio with a transmitting power output in excess of
10 watts. Here you will receive information concerning the technical possibil-
ities for retrofitting this equipment.
Mobile telephones and two-way radios should be only fitted by a qualified
workshop, for example an Authorised Service Centre.
WARNING
•Always concentrate primarily on driving. If you are distracted while
driving you could have an accident.•Never attach the telephone mountings to the surfaces covering the
airbag units or within the range of the airbags. There is a high danger of
injury if the airbag is triggered.Note
Please observe the operating instructions of your mobile telephone / two-way
radio.
Leon_EN.book Seite 207 Dienstag, 8. September 2009 5:25 17

Checking and refilling levels213
Safety First
Controls and equipment
Practical tips
Technical Data
The safety of the LPG system guarantees operation without risk. The following
safety measures have been adopted:
•The LPG tank has a solenoid valve which closes automatically when the
engine is switched off (ignition off) or when running on petrol.•A solenoid type main valve disconnects the supply of gas to the engine
compartment when the engine is switched off or running on petrol.•A safety valve in the LPG tank with pipes to the outside prevents the gas
from entering the vehicle compartment.•All anchorage points and materials have been designed to ensure the
maximum possible levels of safety.
The condition of the LPG system should be checked regularly to guarantee
safe driving conditions ⇒ . These checks are included in the Maintenance
Programme.WARNING
•If there is a smell of gas or a suspected leak, stop the vehicle immedi-
ately and switch off the ignition. Open the doors to ventilate the vehicle. Do
not carry on driving! Take the vehicle to a qualified workshop and have the
fault repaired.•Immediately extinguish any cigarettes and remove from the vehicle any
objects which might produce a spark or cause a fire, and switch off imme-
diately if gas is smelt or a leak is detected.•LGP tanks are subject to pressure and must be checked regularly. The
owner of the vehicle must check that these services are performed
correctly.•When parking the vehicle in a closed area (for example in a garage),
make sure that there is adequate ventilation, either natural or mechanical,
to neutralise the LPG in the event of a leak.
PetrolPetrol types
The recommended fuel types are listed on a sticker inside the
fuel tank flap.Only unleaded petrol, corresponding to the standard DIN EN 228, may be
used for vehicles with catalytic converters (EN = “European Standard”).
Fuel types are differentiated by the octane rating, e.g: 91, 95, 98 RON (RON
= “Regulation Octane Number, unit for determining the knock resistance of
petrol”). You may use petrol with a higher octane number than the one recom-
mended for your engine. However, this has no advantage in terms of fuel
consumption and engine power.
The correct fuel type for your vehicle is given in the technical table for the
engine. Section “Technical Data”
Caution
•Petrol that follows EN 228 may be mixed with small quantities of ethanol.
However, the so-called “bioethanol fuels” available at commercial establish-
ments with reference E50 or E85, which contain a high percentage of ethanol,
may not be used, as they will damage the fuel system.•Even one tankful of leaded fuel would permanently impair the efficiency
of the catalytic converter.•High engine speed and full throttle can damage the engine when using
petrol with an octane rating lower than the correct grade for the engine.For the sake of the environment
Just one full tank of leaded fuel would seriously impair the efficiency of the
catalytic converter.
Leon_EN.book Seite 213 Dienstag, 8. September 2009 5:25 17

Checking and refilling levels
214Petrol additives
Petrol additives improve the quality of the petrol.The quality of the petrol influences running behaviour, performance and
service life of the engine. For this reason, you should use good quality petrol
containing additives. These additives will help to prevent corrosion, keep the
fuel system clean and prevent deposits from building up in the engine.
If good quality petrol with additives is not available or engine problems occur,
the required additives must be added during refuelling.DieselDiesel*Diesel fuel must correspond to DIN EN 590 (EN = “European standard”). It
must have a cetane number (CN) of at least 51. The cetane number indicates
the ignition quality of the diesel fuel.
Notes on filling with fuel ⇒page 208.Biodiesel*The biodiesel fuel must comply with the DIN EN 14.214 (FAME) Standard.•Biodiesel is a methyl ester obtained from rapeseed oil.•DIN is the German abbreviation for “ Deutsches Institut für N ormung e.V.”,
the German standards institute.•EN means European Norm.•FAME is the English abbreviation for “ Fatty Acid Methyl Ester”. Your Authorised Service Centre can also be consulted to know if the vehicle
has been prepared for biodiesel use.
Things to note about RME fuel (biodiesel)
•The performance of a vehicle using biodiesel maybe somewhat reduced.•Fuel consumption of a vehicle using biodiesel may be slightly higher.•RME fuel is resistant to the cold down to approx. -10°C.•At temperatures below -10°C, we recommend using winter diesel fuel.•Your vehicle is designed to be refuelled with up to a maximum of 7%
blended biodiesel in accordance with standard DIN 51628.Caution
•RME fuel can damage the fuel system in vehicles which are not suitably
adjusted.•If you decide to use biodiesel in your vehicle, please use only RME fuel
which is DIN E 14,214 compliant.•If you use biodiesel that does not meet the required standard, the fuel
filter could become clogged.Note
•In case of low exterior temperatures and a fuel biodiesel percentage of
higher than 50%, an increase in gas emission may occur during operation of
the independent heating.•The fuel filter may become clogged when fu el is changed to biodiesel. For
this reason, we recommend you that, when having run 300 or 400 km after a
fuel change, the fuel filter change must also be done. Also note the instruc-
tions in the Inspection and Maintenance plan.•If the vehicle is to remain parked for more than about two weeks, we
recommend filling the fuel tank with biodiesel and driving about 50 km in
order to avoid damage to the injection system.
Leon_EN.book Seite 214 Dienstag, 8. September 2009 5:25 17

Checking and refilling levels215
Safety First
Controls and equipment
Practical tips
Technical Data
Winter driving
Diesel can thicken in winter.Winter-grade diesel
When using “summer-grade diesel fuel”, difficulties may be experienced at
sub-zero temperatures because the fuel thickens due to wax separation.
Therefore, “winter-grade diesel fuel” is available in some countries during
the cold months. It can be used at temperatures as low as -22°C.
In countries with different climatic conditions the diesel fuel generally sold
has different temperature characteristics. Check with an Authorised Service
Centre or filling stations in the country concerned regarding the type of diesel
fuels available.
Filter pre-heater
Your vehicle is fitted with a fuel filter pre-heater, making it well equipped for
operation in winter. This ensures that the fuel system remains operational to
approx. -24°C, provided you use winter-grade diesel which is safe to -15°C.
However, if the fuel has waxed to such an extent that the engine will not start
at temperatures of under -24°C, simply place the vehicle in a warm place for
a while.
Caution
Do not mix fuel additives (“thinners”, or similar additives) with diesel fuel.
Working in the engine compartmentSafety instructions on working in the engine compartment
Any work carried out in the engine compartment or on the
engine must be carried out cautiously.Before starting any work on the engine or in the engine compart-
ment:
1. Switch off the engine and remove the key from the ignition.
2. Apply the handbrake.
3. Move the gear stick to neutral or the selector lever to position P.
4. Wait for the engine to cool down.
5. Keep children away from the vehicle.
6. Raise the bonnet ⇒page 217.You should not do any work in the engine compartment unless you know
exactly how to carry out the jobs and have the correct tools! Have the work
carried out by a qualified workshop if you are uncertain.
All service fluids and consumables, e.g. coolant, engine oil, spark plugs and
batteries, are being constantly developed. SEAT provides a constant flow of
information to the Authorised Service Centres concerning modifications. For
this reason, we recommend you to have service fluids and consumables
replaced by an Authorised Service Centre. Please observe the relevant
instructions ⇒page 206. The engine compartment of any motor vehicle is a
hazardous area ⇒.
Leon_EN.book Seite 215 Dienstag, 8. September 2009 5:25 17

Checking and refilling levels
216
WARNING
All work on the engine or in the engine compartment, e.g. checking and
refilling fluids, involves the danger of injury and scalding as well as the risk
of accident or fire.•Never open the bonnet if you see steam, smoke or coolant escaping
from the engine compartment. Otherwise, there is a risk of sustaining
burns. Wait until no more steam or coolant is emitted, then allow the
engine to cool before carefully opening the bonnet.•Switch off the engine and remove the key from the ignition.•Apply the handbrake and move the gear stick to neutral or selector
lever to position P.•Keep children away from the vehicle.•Never touch hot engine parts. There is a risk of burns.•Never spill liquids on a hot engine or on a hot exhaust gas system. This
is a fire hazard.•Avoid causing short-circuits in the electrical system, particularly at the
points where the jump leads are attached ⇒page 264. The battery could
explode.•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.•Al wa ys m ake s u re yo u ha ve n o t l e f t a ny o bj e c t s , s u ch as cl e an i n g cl o t h s
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
trapped in rotating engine parts. Danger of death. Before starting any
work remove jewellery, tie back and cover hair, and wear tight-fitting
clothes.
− Always think carefully about pressing the accelerator if a gear is
engaged in either an automatic or manual gearbox. The vehicle could
move, even if the handbrake is applied. Danger of death.•If work has to be carried out on the fuel system or on electrical compo-
nents, 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.
− Never work near naked flames.
− Always have a fire extinguisher on hand.Caution
When changing or topping up service fluids, make absolutely certain that you
fill the fluids into the correct reservoirs. Failure to observe this point will result
in serious malfunctions and engine damage!
WARNING (continued)
Leon_EN.book Seite 216 Dienstag, 8. September 2009 5:25 17