2009 Seat Leon 5D ignition

Checking and refilling levels215
Safety First
Controls and equipment
Practical tips
Technical Data
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 wax separation.
Therefore, “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 conditions the diesel fuel generally sold
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 217.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 you to have service fluids and consumables
replaced by an Authorised Service Centre. Please observe the relevant
instructions ⇒page 206. The engine compartment of any motor vehicle is a
hazardous area ⇒.
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Checking and refilling levels
216
WARNING
All work on the engine or in the engine compartment, e.g. checking and
refilling fluids, involves the danger of injury and scalding as well as the risk
of accident or fire.•Never open the bonnet if you see steam, smoke or coolant escaping
from the engine compartment. Otherwise, there is a risk of sustaining
burns. Wait until no more steam or coolant is emitted, then allow the
engine to cool before carefully opening the bonnet.•Switch off the engine and remove the key from the ignition.•Apply the handbrake and move the gear stick to neutral or selector
lever to position P.•Keep children away from the vehicle.•Never touch hot engine parts. There is a risk of burns.•Never spill liquids on a hot engine or on a hot exhaust gas system. This
is a fire hazard.•Avoid causing short-circuits in the electrical system, particularly at the
points where the jump leads are attached ⇒page 264. The battery could
explode.•Never touch the radiator fan. It is temperature controlled and could
start automatically, even when the engine has been switched off and the
key removed from the ignition!•Do not unscrew the cap on the expansion tank when the engine is hot.
If the coolant is hot, the cooling system will be pressurised!•Protect face, hands and arms by covering the cap with a large, thick
cloth to protect against escaping coolant and steam.•Al wa ys m ake s u re yo u ha ve n o t l e f t a ny o bj e c t s , s u ch as cl e an i n g cl o t h s
and tools, in the engine compartment.•If you have to work underneath the vehicle, you must use suitable
stands additionally to support the vehicle, there is a risk of accident!. A
hydraulic jack is insufficient for securing the vehicle and there is a risk of
injury.
•If any work has to be performed when the engine is started or with the
engine running, there is an additional, potentially fatal, safety risk from the
rotating parts, such as the drive belts, alternator, radiator fan, etc., and
from the high-voltage ignition system. You should also observe the
following points:
−Never touch the electrical wiring of the ignition system.
− Ensure that jewellery, loose clothing and long hair do not get
trapped in rotating engine parts. Danger of death. Before starting any
work remove jewellery, tie back and cover hair, and wear tight-fitting
clothes.
− Always think carefully about pressing the accelerator if a gear is
engaged in either an automatic or manual gearbox. The vehicle could
move, even if the handbrake is applied. Danger of death.•If work has to be carried out on the fuel system or on electrical compo-
nents, you must observe the following safety notes in addition to the above
warnings:
−Always disconnect the battery. The vehicle must be unlocked when
this is done, otherwise the alarm will be triggered.
− Do not smoke.
− Never work near naked flames.
− Always have a fire extinguisher on hand.Caution
When changing or topping up service fluids, make absolutely certain that you
fill the fluids into the correct reservoirs. Failure to observe this point will result
in serious malfunctions and engine damage!
WARNING (continued)
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Checking and refilling levels229
Safety First
Controls and equipment
Practical tips
Technical Data
BatteryWarnings on handling the battery
WARNING
Always be aware of the danger of injury and chemical burns as well as the
risk of accident or fire when working on the battery and the electrical
system:•Wear eye protection. Protect your eyes, skin and clothing from acid and
particles containing lead.•Battery acid is very corrosive and caustic. Wear protective gloves and
eye protection. Do not tilt the batteries. This could spill acid through the
vents. Rinse battery acid from eyes immediately for several minutes with
clear water. Then seek medical care immediately. Neutralize any acid
splashes on the skin or clothing with a soapy solution, and rinse off with
plenty of water. If acid is swallowed by mistake, consult a doctor immedi-
ately.•Fires, sparks, naked lights and smoking are prohibited. When handling
cables and electrical equipment, avoid causing sparks and electrostatic charge. 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.

Wear eye protection

Battery acid is very corrosive and caustic. Wear protective
gloves and eye protection!

Fires, sparks, naked lights and smoking are prohibited!

A highly explosive mixture of gases is released when the bat-
tery is under charge.

Keep children away from acid and batteries!
WARNING (continued)
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If and when
250
Fuse cover underneath the steering wheel
– Switch off the ignition and the component concerned.
– Identify the fuse corresponding to the damaged electric consumer ⇒page 252.
– 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 249, fig. 163 .
– Identify the fuse for the failed component ⇒page 252.
– 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 protected 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.
Fuses colour code
WARNING
Never “repair” damaged fuses and never 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 qualified workshop as soon as possible.
Colour
Amperes
light brown
5
Red
10
Blue
15
Ye ll ow
20
Natural (white)
25
Green
30
orange
40
Red
50
white
80
Blue
100
grey
150
violet
200
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If and when253
Safety First
Controls and equipment
Practical tips
Technical Data
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 correct 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
Vaca n t
47
Engine management
10
48
Engine management
10
49
Vaca n t
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
Telephone/TomTom Navigator
5
10
Engine management
5
Engine management
10
11
Vaca 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
Vaca 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
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If and when
254Bulb 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 condensation 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
24)/ self-adjusting*
Dipped and full beam - D1S
25)
Daylight - P21W SLL
Position - W5W
Indicators -PY21W
Fog lights
Fog lights - H3
Fixed rear light
Stop/Position - P21W
26)
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
24)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.25)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.26)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 when
264How to jump start: description⇒ fig. 182 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. 182
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 lead s, 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 details 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. 182 How to connect
the jump leads
AA
AB
A+
A+
A-
AX
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If and when
266Towing and tow-startingTo 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 tow-start your vehicle. Jump-starting
is preferable ⇒ page 263.
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, especially when using a tow-rope. Both
drivers should be familiar with the technique required for towing. Inexperi-
enced drivers should not attempt to tow-start or tow away another vehicle.
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