2005 Seat Leon 5D engine

Checking and refilling levels
196•
Wait until no more steam, smoke or coolant is emitted from the bonnet,
then carefully open the bonnet.
•
When working in the engine compartment, always observe the safety
warnings ⇒ page 193.
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.
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 oilEngine oil specifications
The engine oil used must conform to exact specifications.Specifications
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 high quality oil is essential for the correct operation of the
engine and its long useful life, when topping up or replacement is necessary
use only those oils that conform to the requirements of the VW standards.
If it is not possible to find oil conforming to the VW standards then oil
conforming to the ACEA or API standards with an appropriate viscosity at
atmospheric temperature should be used in stead. The use of this type of oil
may have some repercussions on the performance of the engine for example,
long starting time, increased consumption and a higher emission level.
If a top up is required then different oils may be mixed as long as they all
conform to the VW standards.
The specifications (VW standards) set out in the following page should
appear on the container of the service oil; the container will display together
the different standards for petrol and diesel engines, the oil can be used for
both types of engines.
WARNING (continued)
leon_ingles Seite 196 Donnerstag, 20. Oktober 2005 12:14 12

Checking and refilling levels197
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
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
leon_ingles Seite 197 Donnerstag, 20. Oktober 2005 12:14 12

Checking and refilling levels
198Mono-grade oil
Single grade oils are generally not suitable for all year round use, due to
ranges of viscosity
18).
These oils are only useful in a climate that is constantly very cold or very
warm.
Engine oil additives
No type of additive should be mixed with the engine oil. The deterioration
caused by these additives is not covered by the warranty.
Note
Before a long trip, we recommend findin g an engine oil that conforms to the
corresponding VW specifications and keeping it in the vehicle. This way, the
correct engine oil will always be available for a top-up if needed.
Checking the engine oil level
The engine oil dipstick indicates the level of the oil.Before opening the bonnet, read and observe the warnings ⇒ in
“Safety instructions on working in the engine compartment” on
page 193.
– Park the vehicle on an even surface.
– After stopping the engine, wait a few minutes for the oil to drain back into the sump.
–Raise the bonnet ⇒ page 195.
– Pull out the dipstick.
– Wipe the dipstick with a cloth and insert it again, pushing it in as far as it will go.
18)Viscosity: Ability to flow
Fig. 136 Engine oil
dipstick.
leon_ingles Seite 198 Donnerstag, 20. Oktober 2005 12:14 12

Checking and refilling levels199
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
– 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
leon_ingles Seite 199 Donnerstag, 20. Oktober 2005 12:14 12

Checking and refilling levels
200Engine oil specification ⇒page 196.
WARNING
Oil is highly inflammable! Ensure tha t no oil comes into contact with hot
engine components when topping up.
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 a qualified work-
shop.
For the sake of the environment
The oil level must never be above area . Otherwise oil can be drawn in
through the crankcase breather and escape into the atmosphere via the
exhaust system.Changing engine oil
The engine oil must be changed at the intervals given in the
service schedule.We recommend that you have the engine oil changed by an Authorised
Service Centre.
The two different oil change intervals are shown in the ⇒Booklet “Service
schedule”.
WARNING
Only change the oil yourself if you have the specialist knowledge required!
•
Before opening the bonnet, read and observe the warnings
⇒ page 193, “Safety instructions on wo rking in the engine
compartment”

.
•
Wait for the engine to cool down. Hot oil may cause burn injuries.
•
Wear eye protection to avoid injuries caused by splashes of oil.
•
When removing the oil drain plug with your fingers, keep your arm hori-
zontal to help prevent oil from running down your arm.
•
Wash your skin thoroughly if it comes into contact with engine oil.
•
Engine oil is poisonous! Used oil must be stored in a safe place out of
the reach of children until it is disposed of.Caution
No additives should be used with engine oil. This could result in engine
damage. Any damage caused by the use of such additives would not be
covered by the factory warranty.
For the sake of the environment
•
Because of the disposal problems, the necessary special tools and
specialist knowledge required, we recommend that you have the engine oil
and filter changed by an Authorised Service Centre.
•
Never pour oil down drains or into the ground.
•
Use a suitable container when draining the used oil. It has to be large
enough to hold all the engine oil
AA
AA
WARNING (continued)
leon_ingles Seite 200 Donnerstag, 20. Oktober 2005 12:14 12

Checking and refilling levels201
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
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
leon_ingles Seite 201 Donnerstag, 20. Oktober 2005 12:14 12

Checking and refilling levels
202
Opening the coolant expansion tank
– Switch off the engine and allow it to cool.
– To prevent scalding, cover the cap on the expansion tank with a thick cloth and carefully unscrew the cap ⇒ .
Checking coolant level
– Look into the open coolant ex pansion tank and read off the
coolant level.
– If the level is underneath the “MIN” mark, top up with coolant.
Topping up coolant
–Only use new coolant.
– Do not fill above the “MAX” mark.
Closing the coolant expansion tank
– Screw the cap on again tightly.The position of the coolant expansion tank is shown in the corresponding
engine compartment diagram ⇒page 252.
Make sure that the coolant meets the required specifications ⇒page 201.
Do not use a different type of additive if coolant additive G 12+ is not avail-
able. In this case use only water and bring the coolant concentration back up
to the correct level as soon as possible by putting in the specified additive
⇒ page 201.
Always top up with new coolant.
Do not fill above the “MAX” mark. Otherwise the excess coolant will be forced
out of the cooling system when the engine is hot. The coolant additive G 12+ (dyed purple
) may be mixed with G 12 (dyed red)
and also with G 11.
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.
•
When the engine is warm or hot, the cooling system is pressurised! Do
not unscrew the cap on the expansion tank when the engine is hot. This is
a burn injury risk.Caution
•
When mixed with other additives the colour of G 12 will change to brown.
If this occurs you should have the coolant changed immediately. Failure to do
so will result in engine damage!
•
If a lot of coolant has been lost, wait for the engine to cool down before
putting in cold coolant. This avoi ds damaging the engine. Large coolant
losses are an indication of leaks in the cooling system. See a specialised
workshop immediately and have the cooling system checked. Otherwise,
there is a risk of engine damage.
leon_ingles Seite 202 Donnerstag, 20. Oktober 2005 12:14 12

Checking and refilling levels203
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
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.
leon_ingles Seite 203 Donnerstag, 20. Oktober 2005 12:14 12