2005 Seat Leon 5D engine

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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If and when215
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Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
If and whenTools*, tyre repair kit* and spare wheel*Veh icle To ols*
The tools and jack* are stored under the floor panel in the
luggage compartment.– Lift the cover of the luggage compartment, by pulling it up with a
finger in the fitting.
– Remove the tools or jack*.The tool kit includes:•
Hook for removing wheel covers* or hub caps*
•
Box spanner for wheel bolts
•
Reversible screwdriver with handle (i ncluding hexagonal interior) for the
wheel bolts. The screwdriver is a combination tool.
•
Towing ring*
•
Adapter for the anti-theft wheel bolts*
Before replacing the jack in the storage area, wind the arm of the jack down
as far as it will go.
Some of the items listed are only provided on certain model years, or are
optional extras.
WARNING
•
Do not use the hexagonal socket in the screwdriver handle to tighten
the wheel bolts. It is impossible to tighten the bolts with the torque
required, risk of accident.
•
The jack supplied by the factory is only designed for changing wheels
on this model. On no account attempt to use it for lifting heavier vehicles
or other loads, risk of injury.
•
Use the jack only on firm, level ground.
•
Never start the engine when the vehicle is on the jack, risk of accident.
•
I f w o r k is t o b e ca r r i e d o ut un d e r n ea t h t h e v e h i cle , t h is m u st b e s e c ure d
by suitable stands. Otherwise, there is a risk of injury.
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Te c h n i c a l D a t a
Note
•
Seek professional assistance if the repair of a tyre puncture is not
possible with the sealing compound.
Wheel changePreparation work
What you must do before changing a wheel.– If you have a flat tyre or puncture, park the vehicle as far away from the flow of traffic as possible. Choose a location that is as
level as possible.
– All passengers should leave the vehicle. They should wait in a safe area (for instance behind the roadside crash barrier).
– Switch off the engine. Switch on the hazard warning lights.
–Apply the handbrake firmly.
–Engage the first gear, or put the selector lever to position P for
those vehicles with an automatic gearbox.
– If you are towing a trailer, unhitch it from your vehicle.
–Take the vehicle tools and the spare wheel out of the luggage
compartment.
WARNING
Put the hazard warning lights on and place the warning triangle in position.
This is for your own safety and also warns other road users.
Caution
If you have to change the wheel on a gradient, block the wheel opposite the
wheel being changed by placing a stone or similar object under it to prevent
the vehicle from rolling away.
Note
Please observe legal requirements when doing so.Changing a wheelChange the wheel as described below
– Remove the wheel cover. See ⇒page 218, fig. 146 .
–Slacken the wheel bolts.
– Raise the car wi th the jack in the corresponding zone.
– Take off the wheel and then put on the spare wheel.
– Lower the vehicle.
– Tighten the wheel bolts firmly i n d i a go na l s e q u e n ce wi t h t h e b ox
spanner.
–Replace the cover.
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If and when
224
Inflating the tyre.
– Remove the air compressor and hose from the container.
– Screw the retaining nut onto the valve.
– Plug the compressor cable into a 12 volt socket.
– Turn on compressor and monitor the pressure shown on the pres-sure gauge.
Completing the repair
– Remove the compressor hose from the valve.
–Fit the valve cap.
– Unplug the compressor from the socket.
– Return all tools to their proper storing location.
NoteThe compressor should never be allowed to run for longer than 6 minutes.
FusesChanging a fuse
If a fuse has blown it must be replaced
F ig. 15 2 Le f t sid e o f dash
panel: Fuse box coverFig. 153 Fuse box cover
in engine compartment
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Operating instructions
Tips and Maintenance
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Fuse cover underneath the steering wheel
– Switch off the ignition and the component concerned.
– Identify the fuse for the failed component ⇒page 226.
– Take the plastic clip from inside the fuse cover, fit it onto the blown fuse and pull the fuse out.
– Replace the blown fuse (which will have a melted metal strip) with a new fuse of the same ampere rating.
Fuse cover in engine compartment
– Switch off the ignition and the component concerned.
– Prise off the fuse cover in the engine compartment by pressing the tabs towards the centre of the cover ⇒page 224, fig. 153 .
– Identify the fuse for the failed component ⇒page 226.
– Take the plastic clip from inside the fuse cover (at left-hand end of the dash panel), fit it onto the blown fuse and pull the fuse out.
– Replace the blown fuse (which will have a melted metal strip) with a new fuse of the same ampere rating.
– Carefully fit the fuse cover back on to ensure no water can enter the fuse box.The individual electrical circuits are pr otected by fuses. The fuses are located
behind a cover at the left-hand end of the dash panel and on the left-hand
side of the engine compartment.
The electric windows are protected by circuit breakers. These reset automat-
ically after a few seconds when the overload (caused for example by frozen
windows) has been corrected. Colour coding of fuses
WARNING
Never “repair” damaged fuses and never replace them with fuses with a
higher rating. Failure to comply could re
sult in fire. This could also cause
damage to other parts of the electrical system.
Note
•
If a newly replaced fuse blows again after a short time, the electrical
system must be checked by a qualified workshop as soon as possible.
•
If you replace a fuse with a stronger fuse, you could cause damage to
another location in the electrical system.
•
Always keep some spare fuses in the vehicle. These are available from
official Service. Colour
Amperes
light brown 5
red 10
blue 15
yellow 20
natural (white) 25
green 30
orange 40
red 50
white 80
blue 100
grey 150
violet 200
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If and when
226Fuses on left side of dash panelFuses
Number Electrical equipment Amperes
1 Diesel and petrol engine control unit 10
2 ABS/ESP control unit 5
3 Airbag control unit 5
4 Heating controls, pressure sensor, heated seats, ESP switch, reverse gear 5
5 Left and right headlamp motor, dimmer, GDL control unit 5
6 Gateway, Automatic gearbox lever 5
7 Windscreen relay, heated mirrors, VDA telephone 5
8 Trailer control unit 5
9 Vacant
10 Vacant
11 Vacant
12 Door control unit (autolock K3) 10
13 Diagnosis, light switch, brake 10
14 Automatic gearbox 5
15 Cable control unit 7,5
16 Heating controls / Air and air conditioning 10
17 Rain sensor 5
18 Automatic gearbox selector lever, parking aid control unit 5
19 Vacant
20 ESP control unit 5
21 D2L engine (20 147 kW) 10
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22
Heater 40
23 Door control unit 30
24 Cigarette lighter 25
25 Cable control unit 25
26 12 V power sockets 30
27 FSI capacity gauge control unit, fuel relay, EKP 1.6 relay 15
28 Comfort system control unit (without autolock 4F8) 25
29 Flowmeter, engine 10
30 Prewired 20
31 Vacuum pump 20
32 Door control unit 30
33 Sunroof 30
34 Comfort system control unit (autolock 4 K3) 25
35 Alarm sensor, horn 5
36 Headlight washer system 20
37 Seats 30
38 Engine 10
39 Automatic gearbox 20
40 Heater 40
41 Tailgate, power 15
42 Cable control unit 15
43 Trailer control unit 15
44 Trailer control unit 20
45 Trailer control unit 15
Number
Electrical equipment Amperes
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