2005 Seat Leon 5D maintenance

Checking and refilling levels
192containing 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 190.RME fuel*
Only those vehicles fitted with special equipment (number PR
2G0 for biodiesel use) may use biodiesel corresponding to
the standard DIN EN 14214.The biodiesel fuel must comply with the DIN EN 14.214 (FAME) Standard.•
Biodiesel is a methylester obtained from rapeseed oil.
• DIN is a German abbrev iation for “Deuts che
s In s
titut für Normug e.V .”, the
German standards institute.
•
EN means E uropean Norm.
• FAME is the English abbrev iation “Fatty Acid
Methy l Este r” If the date sticker of the vehicle includes the number PR 2G0 optional equip-
ment) this means that that vehicle has been prepared for biodiesel use.
Your Authorised Service Centre or automobile association will be able to
advise on where you can obtain RME biodiesel fuel.
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 maybe slightly higher.
•
RME fuel can be used in winter at
temperatures down to approx. -10°C.
•
At outside temperatures below -10°C, we recommend using winter diesel
fuel.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 me et 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 fuel is changed to biodiesel. For
this reason, we recommend that, about every 300 or 400 km, following a fuel
change, also change the fuel filter. Also. note the instructions in the inspec-
tion and maintenance plan.
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Checking and refilling levels193
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•
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.
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 paraffin separation.
For this reason, “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 cond itions the diesel fuel sold generally
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 195.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 that you have service fluids and consumables
replaced by an Authorised Service Centre. Please observe the relevant
instructions ⇒page 186. The engine compartment of any motor vehicle is a
hazardous area ⇒ .
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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 qualified
workshop.Opening the bonnet
The bonnet is released from inside the vehicle.
Before opening the bonnet ensure that the windscreen wipers are in
rest position.
– To release the bonnet, pull the lever under the dashboard ⇒fig. 133 in the direction indicated (arrow). The bonnet will be
released by a spring action ⇒.
– Lift the bonnet using the rele ase 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.
Fig. 133 Detail of the
footwell: The release lever
for the bonnet is located
in the driver side footwell
Fig. 134 Arrester hook
for bonnet.
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Checking and refilling levels197
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Oil properties
Viscosity
The viscosity class of the oil is selected according to the diagram.
When the ambient temperature falls outside the limits of the scale for a short
period, an oil change is not required.
Petrol engines
Diesel engines
Fig. 135 Types of oil
according to temperature
Denomination SpecificationComments
A - synthetic oils VW 502 00/ VW 500 00Dated before 1-97
B - mineral oils VW 501 01 Dated before 1-97
A/B - multigrade oils ACEA B2 or B3 or even API SH/SJDated before 1-97
Denomination SpecificationComments
A - synthetic oils VW 505 01
a)
a)Diesel engines with a system of pump-injector type injection should use onlyoil with the specification VW 505 01. Avoid using any other type of oil for this type of engine other than
the VW 505 01 specification; This could lead to engine damage!
Dated before 1-97
B - mineral oils VW 505 00 Dated before 1-97
A/B - multigrade oils ACEA B2 or B3 or even API CD/CFDated before 1-97
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– Pull the dipstick out again and check the oil level ⇒ page 198,
fig. 136.
– Replace the dipstick, pushing it in as far as it will go.The position of the dipstick is shown in the corresponding engine compart-
ment diagram ⇒page 252.
If the oil level is in area ⇒page 198, fig. 136 , do not top up with oil.
If the oil level is in area , you may top up with oil (approx. 0.5 l).
If the oil level is in area , you mu st top up with oil (approx. 1.0 l).
It is normal for the engine to consume a certain amount of oil. Consumption
can be up to 1.0 litres per 1,000 km. For this reason the engine oil level must
be checked at regular intervals, prefer ably when filling the tank and before a
journey.
When the engine is working hard, for instance during sustained high-speed
motorway cruising in summer, when towi ng a trailer or climbing on mountain
passes, the oil level should preferably be kept within area and not above
this.
WARNING
Any work carried out in the engine compartment or on the engine must be
carried out cautiously.•
When working in the engine compartment, always observe the safety
warnings ⇒ page 193.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 an Authorised
Service Centre.
Topping up engine oil

Top up gradually with small quantities of oil.Before opening the bonnet, read and observe the warnings ⇒ in
“Safety instructions on working in the engine compartment” on
page 193 .
– Unscrew cap from oil filler opening ⇒fig. 137.
– Top-up oil in small amounts, using the correct oil.
– 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 openi ng is shown in the corresponding engine
compartment diagram ⇒page 252.
AA
ABAC
AA
AA
Fig. 137 In the engine
compartment: Engine oil
filler cap
AB
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CoolantCoolant specifications
Coolant is a mixture of water and at least 40% coolant addi-
tive.The cooling system must be filled with a mixture of water and at least 40 % of
our coolant additive G 12+ or an additive with the specification TT-VW 774 F
(it is dyed purple). This mixture gives the necessary frost protection down to
-25
°C and protects the alloy parts of the cooling system against corrosion. It
also prevents scaling and raises the boiling point of the coolant.
The concentration of coolant must always be at least 40% - even if frost
protection is not required.
If greater frost protection is required in very cold climates, the proportion of
the antifreeze additive G 12+ can be increased. However, the percentage of
coolant additives should not exceed 60%, as this would reduce the frost
protection. It would also reduce the cooling effect. A mixture with 60%
coolant additive will give frost protection to approx. -40
°C.
WARNING
•
The coolant additive is toxic. This represents a toxic danger. Always
keep the coolant additive in the original container which should be stored
out of the reach of children. The same applies to coolant which you have
drained off.
•
The coolant additive G 12+ must be added in sufficient quantities to
provide anti-freeze protection at the coldest ambient temperatures that
can be expected. At extremely cold ambient temperatures, the coolant
could freeze, causing the vehicle to br eakdown. As the heater would also
not work in this situation, there is a risk of suffering exposure!
Caution
•
Other additives may give considerably inferior corrosion protection. The
resulting corrosion in the cooling system can lead to a loss of coolant,
causing serious damage to the engine.
•
The coolant additive G 12+ (purple) can be mixed with the additive G 12
(red) or G 11. Never mix G 12 (red colour) with G 11.
Checking the coolant level and topping up

The correct coolant level is important for fault-free func-
tioning of the engine cooling system.Before opening the bonnet, read and observe the warnings ⇒ in
“Safety instructions on working in the engine compartment” on
page 193 .
Fig. 138 In the engine
compartment: Coolant
expansion tank cap
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Washer fluid and windscreen wiper bladesTopping up washer fluid

The water for cleaning the windscreen should always be
mixed with washer fluid.The windscreen washer and the headlight washing system are supplied with
fluid from the windscreen washer flui d container in the engine compartment.
The reservoir is located on the right-hand side of the engine compartment.
Plain water is not enough to clean the windscreen and headlights. We recom-
mend that you always add a product to the windscreen washer fluid.
Approved windscreen cleaning products exist on the market with high deter-
gent and anti-freeze properties, these may be added all-year-round. Please
follow the dilution instructions on the packaging.
WARNING
Any work carried out in the engine compartment or on the engine must be
carried out cautiously.•
When working in the engine compartm ent, always observe the safety
warnings ⇒page 193.Caution
•
Never put radiator anti-freeze or other additives into the windscreen
washer fluid.
•
Always use approved windscreen cleansing products diluted as per
instructions. If you use other washer fl uids or soap solutions, the tiny holes
in the fan-shaped nozzles could become blocked.
Fig. 139 In the engine
compartment: Cap of
windscreen washer fluid
reservoir.
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Checking and refilling levels205
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Operating instructions
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Changing the rear wiper blade
A good rear wiper blade is essential for clear rear vision.
Damaged wiper blades should be replaced immediately.Removing the wiper blade
– Lift the wiper arm away from the glass ⇒ fig. 141.
– Unclip the wiper blade and pull ⇒fig. 141.
Fitting the wiper blade
– With one hand, hold the top end of the wiper arm.
– With the other hand, press the wiper blade into the retainer.Check the condition of the wiper blade regularly. Change as required.
If the windscre en wiper smear, they should be replaced if they are damaged
or cleaned if they are soiled. If this is not sufficient, refer to a qualified workshop.
WARNING
Do not drive unless you have good visibility through all windows!•
Clean the windscreen wiper blades and all windows regularly.
•
The wiper blades should be changed once or twice a year.Caution
•
A damaged or dirty window wiper could scratch the rear window.
•
Never use fuel, nail varnish remover,
paint thinner or similar products to
clean the window.
•
Never move the windscreen wiper by hand. This could cause damage.
Fig. 141 Changing the
rear window wiper blade
A1
A2
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