2008 Seat Leon 5D engine

If and when
240
Fuse cover underneath the steering wheel
– Switch off the ignition and the component concerned.
– Identify the fuse corresponding to the damaged electric consumer ⇒page 242.
– 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 its failed electrical component.
– Prise off the fuse cover in the engine compartment by pressing the tabs towards the centre of the cover ⇒page 239, fig. 157 .
– Identify the fuse for the failed component ⇒page 242.
– 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 ov erload (caused for example by frozen
windows) has been corrected.
Fuses colour code
WARNING
Never “repair” damaged fuses and neve r replace them with fuses with a
higher rating. Failure to comply could result 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 qualifi ed workshop as soon as possible.
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
leon_ingles Seite 240 Montag, 26. Januar 2009 4:29 16

If and when
242Fuses on left side of dash panelFusesNumber
Consumer
Amperes
1
Diagnosis Switchboard/ Instrument lighting/
Headlight control switchboard/ Flowmeter/
Heated wipers/ Engine management/ AFS Head-
lamps
10
2
Engine control unit/ ABS-ESP switchboard/ Auto-
matic gearbox/ Instrument panel/ Trailer switch-
board/ Light switch / Brake sensor/ Power
steering/ Right an d left headlights
10
3
Airbag
5
4
Heating/ Reverse switch/ ASR-ESP switch/ Elec-
trochrome mirror/ Park Pilot/ Oil level sensor
5
5
Right xenon headlight
10
6
Left xenon headlight
10
7
Vacant
8
Vacant
9
Vacant
10
Vacant
11
Vacant
12
Central locking
15
13
Diagnosis/ Light switch/ Rain sensor/ Heated rear
window
10
14
Automatic gearbox / Heating/ Automatic gearbox
lever
10
15
Vacant
16
Va ca n t
17
Alarm
5
18
Va ca n t
19
Va ca n t
20
Va ca n t
21
Engine management
10
22
Fan switch
40
23
Electric windows (front)
30
24
BCM switchboard
20
25
Rear window heater
25
26
Rear electric windows
30
27
Engine (fuel control unit/pump relay)
15
28
Convenience controls
30
29
Va ca n t
30
Automatic gearbox
20
31
Vacuum pump
20
32
Va ca n t
33
Sunroof
25
34
Comfort switchboard/Central locking system
25
35
Va ca n t
36
Headlight washer system
20
37
Heated seats
30
38
Engine management
10
39
Va ca n t
Number
Consumer
Amperes
leon_ingles Seite 242 Montag, 26. Januar 2009 4:29 16

If and when243
Safety First
Operating instructions
Practical tips
Te c h n i c a l D a t a
Some of the electrical items listed in
the table are only fitted on certain
models or are optional extras.
Please note that the above list, while correct at the time of printing, is subject
to alterations. If discrepancies should occur, please refer to the sticker on the
inside of the fuse cover for the co rrect information for your model.
Fuses layout, engine compartment, left partFuses
40
Fan switch
40
41
Rear wiper motor / Switchboard wiring
20
42
12 V socket/ Cigarette lighter
20
43
Trailer bracket preinstallation
15
44
Trailer bracket preinstallation
20
45
Trailer bracket preinstallation
15
46
Vacant
47
Engine management
10
48
Engine management
10
49
Vacant
Number
Consumer
Amperes
1
Windscreen wipers
30
2
DQ200 gearbox
30
3
Cable control unit
5
Number
Consumer
Amperes
4
ABS
20
5
AQ gearbox
15
6
Instrument panel/Steering column
5
7
Ignition key
40
8
Radio
15
9
Te l e p ho n e/ To m To m N a vi ga to r
5
10
Engine management
5
Engine management
10
11
Va ca n t
12
Electronic control unit
5
13
Petrol injection module supply
15
Diesel injection module supply
30
14
Coil
20
15
Engine management
5
Pump relay
10
16
Right lighting
30
17
Horn
15
18
Va ca n t
19
Clean
30
20
Water pump
10
Pressure sensor pump for 1.8 engine
20
21a)
Lambda probe
15
22
Brake pedal, speed sensor
5
Number
Consumer
Amperes
leon_ingles Seite 243 Montag, 26. Januar 2009 4:29 16

If and when
244Bulb changeGeneral notesBefore changing any bulb, first turn off the failed component.
Do not touch the bulb glass. Fingerprints vaporise in the heat, causing a
reduction in the bulb life and conden sation on the mirror surface, thus
reducing efficiency.
A bulb should only be replaced by one of the same type. The type is inscribed
on the bulb, either on the glass part or on the base. It is highly recommended to keep a box of spare bulbs in the vehicle. At the
very least, the following spare bulbs, which are essential for road safety,
should be kept in the vehicle.
Main headlights
Dipped beam - H7
Main beam - H1
Position - W5W
Indicator - PY21W
Xenon headlights
23) / self-adjusting*
Dipped and full beam - D1S
24)
Daylight - P21W SLL
Position - W5W
Indicators -PY21W
Fog lights
Fog lights - H3
Fixed rear light
Stop/Position - P21W
25)
Indicator - P21W
23a)
Engine management
5
Engine management
10
Engine management
15
24
AKF, gearbox valve
10
25a)
ABS pump
40
26
Left lighting
30
27a)
Engine management
40
Engine management
50
28
Vacant
29a)
Electric windows (front and back)
50
Electric windows (front)
30
30
Ignition key
50
a)Ampere rating according to motorisationNumber
Consumer
Amperes
23)On this type of headlight, the bulb changes must be made by the SEAT dealer, given
that complex elements must be removed from the vehicle and a reset must be made
on the automatic control system incorporated.24)The Xenon bulbs discharge 2.5 times the light flux and have an average lifespan of 5
times more than that of halogen bulbs, this means that, except due to unusual circum-
stances, there is no need to change the bulbs for the whole life of the vehicle.25)Electronically controlled single filament bulb for Stop/side bulbs. If the bulb blows it
will not work in either position or Stop.
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If and when253
Safety First
Operating instructions
Practical tips
Te c h n i c a l D a t a
Sunroof light– Carefully remove the lamp, using the flat side of the screwdriver,
as shown in the figure ⇒fig. 175. – Remove the bulb, moving it in
the direction of the arrow and
outwards ⇒fig. 175.
– Installation is in the reverse order.
Jump-startingJump leads
The jump lead must have a sufficient wire cross section.If the engine fails to start because of a discharged battery, the battery can be
connected to the battery of another vehicle to start the engine.
Jump leads
Jump leads must comply with the standard DIN 72553 (see manufacturer's
documentation). The wire cross section must be at least 25 mm
2 for petrol
engines and at least 35 mm
2 for diesel engines.
Note
•
The vehicles must not touch each othe r, otherwise electricity could flow as
soon as the positive terminals are connected.
•
The discharged battery must be properly connected to the vehicle elec-
trical system.
Fig. 174 Removing
sunroof lightFig. 175 Removing
sunroof light
leon_ingles Seite 253 Montag, 26. Januar 2009 4:29 16

If and when
254How to jump start: description⇒ fig. 176 shows the flat battery and the charged battery.
Jump lead terminal connections
– Switch off the ignition on both vehicles ⇒.
1. Connect one end of the red jump lead to the positive ⇒fig. 176
terminal of the vehicle with the flat battery ⇒.
2. Connect the other end of the red jump lead to the positive terminal in the vehicle providing assistance.
3. Connect one end of the black jump lead to the negative terminal on the battery of the vehicle providing assistance. 4. Connect the other end of the black jump lead to a solid metal
component which is bolted on to the engine block, or onto the
engine block itself of the vehicle with the flat battery. Do not
connect it to a point near the battery ⇒.
5. Position the leads in such a way that they cannot come into contact with any moving parts in the engine compartment.
Starting
6. Start the engine of the vehicle with the boosting battery and let it run at idling speed.
7. Start the engine of the car with the flat battery and wait one or two minutes until the engine is “running”.
Removing the jump leads
8. Before you remove the jump leads, switch off the headlights (if they are switched on).
9. Turn on the heater blower and rear window heater in the vehicle with the flat battery. This helps minimise voltage peaks which are
generated when the leads are disconnected.
10. When the engine is running, disconnect the leads in reverse order to the deta ils given above.
Connect the battery clamps so they have good metal-to-metal contact with
the battery terminals.
If the engine fails to start, switch off the starter after about 10 seconds and
try again after about half a minute.
Fig. 176 How to connect
the jump leads
AA
AB
A+
A+
A-
AX
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If and when255
Safety First
Operating instructions
Practical tips
Te c h n i c a l D a t a
WARNING
•
Please note the safety warnings referring to working in the engine
compartment ⇒page 205, “Working in the engine compartment”.
•
The battery providing assistance must have the same voltage as the flat
battery (12V) and approximately the same capacity (see imprint on
battery). Failure to comply could result in an explosion.
•
Never use jump leads when one of the batteries is frozen. Danger of
explosion! Even after the battery has thawed, battery acid could leak and
cause chemical burns. If a battery freezes, it should be replaced.
•
Keep sparks, flames and lighted cigarettes away from batteries, danger
of explosion. Failure to comply could result in an explosion.
•
Observe the instructions provided by the manufacturer of the jump
leads.
•
Do not connect the negative cable from the other vehicle directly to the
negative terminal of the flat battery. The gas emitted from the battery could
be ignited by sparks. Danger of explosion.
•
Do not attach the negative cable from the other vehicle to parts of the
fuel system or to the brake line.
•
The non-insulated parts of the battery clamps must not be allowed to
touch. The jump lead attached to the positive battery terminal must not
touch metal parts of the vehicle, this can cause a short circuit.
•
Position the leads in such a way that they cannot come into contact
with any moving parts in the engine compartment.
•
Do not bend over the batteries. This could result in chemical burns.Note
The vehicles must not touch each other, otherwise electricity could flow as
soon as the positive terminals are connected.
leon_ingles Seite 255 Montag, 26. Januar 2009 4:29 16

If and when
256To w i n g a n d t o w - s t a r t i n gTo w - s t a r t i n g
The use of jump leads is preferable to tow-starting.We recommend that you do not t o w - s t a r t yo u r v e h i c l e . J u m p - s ta r t i n g
is preferable ⇒page 253.
However, if your vehicle has to be tow-started:
– Engage the 2
nd or the 3
rd gear.
– Keep the clutch pressed down.
– Switch the ignition on.
– Once both vehicles are moving, release the clutch.
– As soon as the engine starts, press the clutch and move the gear lever into neutral. This helps to prevent driving into the towing
vehicle.
WARNING
The risk of accidents is high when tow-starting. The vehicle being towed
can easily collide with the towing vehicle.
Caution
When tow-starting, fuel could enter the catalytic converter and damage it.
CommentsPlease observe the following points if you use a tow-rope:
Notes for the driver of the towing vehicle
– Drive slowly at first until the tow-rope is taut. Then accelerate gradually.
– Begin and change gears cautiously. If you are driving an auto- matic vehicle, accelerate gently.
– Remember that the brake servo and power steering are not working in the vehicle you are towing. Brake earlier than you
would normally, but with a more gentle pressure on the brake.
Notes for the driver of the towed vehicle
– Ensure that the tow-rope remains taut at all times when towing.Tow-rope or tow-bar
It is easier and safer to tow a vehicle with a tow-bar. You should only use a
tow-rope if you do not have a tow-bar.
A tow-rope should be slightly elastic to reduce the loading on both vehicles.
It is advisable to use a tow-rope made of synthetic fibre or similarly elastic
material.
Attach the tow-rope or the tow-bar only to the towing eyes provided or a
towing bracket.
Driving style
Towing requires some experience, espec ially when using a tow-rope. Both
drivers should be familiar with the te chnique required for towing. Inexperi-
enced drivers should not attempt to tow-start or tow away another vehicle.
leon_ingles Seite 256 Montag, 26. Januar 2009 4:29 16