2005 Seat Leon 5D diagram

Driving
152
CautionIf the engine has been driven hard for a long period, the engine could over-
heat when it is switched off. Risk of engine damage. For this reason, you
should idle the engine for approx. 2 m inutes before you switch it off.Manual gearboxDriving a car with a manual gearbox
Selecting the reverse gear
– The vehicle should be stationary with the engine idling. Press the
clutch right down.
– Place the gear lever into neutral gate and push the lever all the way down.
– Slide the gearlever to the left, and then into the reverse position shown on the gear lever.The reverse gear can only be engaged when the vehicle is stationary. When
the engine is running, before engaging this gear wait about 6 seconds with
the clutch pressed in fully in order to protect the gearbox.
The reversing lights come on when the reverse gear is selected and the igni-
tion is on.
Fig. 113 Detail of the
centre console: Shift
diagram of a 5-speed
manual gearbox
Fig. 114 Detail of the
centre console: Shift
diagram of a 6-speed
manual gearbox
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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
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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
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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.
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Checking and refilling levels
206Brake fluidChecking the brake fluid level
The brake fluid is checked at the intervals given in the service
schedule.– Read off the fluid level at the transparent brake fluid reservoir. It
should always be between the “MIN” and “MAX” marks.The position of the brake fluid reservoir is shown in the corresponding engine
compartment diagram ⇒ page 252. The brake fluid reservoir has a black and
yellow cap.
The brake fluid level drops slightly when the vehicle is being used as the
brake pads are automatically adjusted as they wear. However, if the level goes down noticeab
ly in a short time, or drops below the
“MIN” mark, there may be a leak in the brake system. A display on the instru-
ment panel will warn you if the brake fluid level is too low ⇒page 71.
WARNING
Before opening the bonnet to check the brake fluid level, read and observe
the warnings ⇒page 193.Changing the brake fluid
The brake fluid must be renewed every two years.We recommend that you have the brake fluid changed by an Authorised
Service Centre.
Before opening the bonnet, please read and follow the warnings ⇒ in
“Safety instructions on working in the engine compartment” on page 193 in
“Working in the engine compartment”.
Brake fluid absorbs moisture. In the cour se of time, it will absorb water from
the ambient air. If the water content in the brake fluid is too high, the brake
system could corrode. This also consider ably reduces the boiling point of the
brake fluid. Heavy use of the brakes may then cause a vapour lock which
could impair the braking effect.
For this reason the brake fluid must be renewed every two years.
It is important that you use only use brake fluid compliant with the US
standard FMVSS 116 DOT 4. We recommend the use of Genuine SEAT brake
fluid.
WARNING
Brake fluid is poisonous. Old brake fluid impairs the braking effect.
Fig. 142 In the engine
compartment: Brake fluid
reservoir cover
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Checking and refilling levels
208charge. Never short the battery terminals. High-energy sparks can cause
injury.•
A highly explosive mixture of gases is released when the battery is
under charge. The batteries should be charged in a well-ventilated room
only.
•
Keep children away from acid and batteries.
•
Before working on the electrical system, you must switch off the
engine, the ignition and all consumers. The negative cable on the battery
must be disconnected. When a light bulb is changed, you need only switch
off the light.
•
Deactivate the anti-theft alarm by unlocking the vehicle before you
disconnect the battery! The alarm will otherwise be triggered.
•
When disconnecting the battery from the vehicle electrical system,
disconnect first the negative cable and then the positive cable.
•
Switch off all electrical consumers before reconnecting the battery.
Reconnect first the positive cable and then the negative cable. Never
reverse the polarity of the connections. This could cause an electrical fire.
•
Never charge a frozen battery, or one which has thawed. This could
result in explosions and chemical burns. Always replace a battery which
has frozen. A flat battery can freeze at temperatures around 0
°C.
•
Ensure that the vent hose is always connected to the battery.
•
Never use a defective battery. This may be fatally explosive. Replace a
damaged battery immediately.Caution
•
Never disconnect the battery if the ignition is switched on or if the engine
is running. This could damage the electrical system or electronic compo-
nents.
•
Do not expose the battery to direct sunlight over a long period of time, as
the intense ultraviolet radiation can damage the battery housing.
•
If the vehicle is left standing in cold conditions for a long period, protect
the battery from frost. If it “freezes” it will be damaged.
Checking the electrolyte level
The electrolyte level should be checked regularly in high-
mileage vehicles, in hot countries and in older batteries.– Open the bonnet and open the battery cover at the front ⇒ in
“Safety instructions on working in the engine compartment” on
page 193 ⇒ in “Warnings on handling the battery” on
page 207.
– Check the colour display in the “magic eye” on the top of the battery.
– If there are air bubbles in the window, tap the window gently until they disperse.The position of the battery is show n in the corresponding engine compart-
ment diagram ⇒page 252.
The round window (“magic eye”) on the top of the battery changes colour,
depending on the charge level and electrolyte level of the battery.
If the colour in the window is colourless or bright yellow, the electrolyte level
of the battery is too low. Have the battery checked by a qualified workshop.
The colours green and black are used by the workshops for diagnostic
purposes.
WARNING (continued)
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Technical Data
252Te c h n i c a l D a t aChecking fluid levelsFrom time to time, the different fluid levels in the vehicle must
be checked. Never fill with incorrect fluids, to do so may cause
serious damage to the engine.
Radiator expansion tank
Windscreen washer fluid reservoir
Engine oil filler cap
Engine oil dipstick
Brake fluid reservoir
Vehicle battery (underneath the cover)
The checking and replenishment of the service fluids are carried out on the
components mentioned above. These operations are described in the
⇒ page 193. Overview
Further explanations, instructions and restrictions on the technical data are
contained as of
⇒page 247.
Fig. 175 Diagram for the
location of the various
elements
A1A2A3A4A5A6
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