check engine Seat Leon 5D 2009 Owner's Guide

Checking and refilling levels
224•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 avoids 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.
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 fluid 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 th e 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 (continued)
Fig. 148 In the engine
compartment: Cap of
windscreen washer fluid
reservoir.
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Checking and refilling levels225
Safety First
Controls and equipment
Practical tips
Technical Data
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 215.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 fluids or soap solutions, the tiny holes
in the fan-shaped nozzles could become blocked.
Changing the front windscreen wiper blades
If the windscreen wiper blades are in perfect condition, you
will benefit from an improved visibility. Damaged wiper
blades should be replaced immediately.Changing wiper blades can be done in both the rest and horizontal
positions. Ensure that the wiper blades are not frozen.
Changing the windscreen wiper blades
– Lift the wiper arm away from the windscreen.
– Press on the side tabs and release the blade moving it in the direction of the arrow ⇒fig. 149 .
Fitting the wiper blade
– Insert the tab into the slot of the blade ⇒fig. 149 .
Fig. 149 Changing the
front wiper blades
AAA1
A2
A3
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Checking and refilling levels227
Safety First
Controls and equipment
Practical tips
Technical Data
Removing the wiper blade
– Lift the wiper arm away from the glass ⇒ fig. 150.
– Slide the blade adapter in the di rection of the arrow and remove
the blade ⇒ fig. 150.
Fitting the wiper blade
– With one hand, hold the top end of the wiper arm.
– Place the blade as shown in the ⇒fig. 151 and slide the adapter
along until it fits into place.Check the condition of the wiper blad e regularly. Change as required.
If the windscreen wiper scrapes, i t s h o u l d b e r e p la ce d i f d a m a ge d , o r c l ea n e d
if soiled.
If this is not sufficient, refer to a qualified workshop.
WARNING
Do not drive unless you have good visibility through all windows!•Clean the windscreen wiper blades and all windows regularly.•The wiper blades should be changed once or twice a year.Caution
•A damaged or dirty window wiper could scratch the rear window.•Never use fuel, nail varnish remover, paint thinner or similar products to
clean the window.•Never move the windscreen wiper by hand. This could cause damage.
Brake 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 273. 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.
Fig. 152 In the engine
compartment: Brake fluid
reservoir cover
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Checking and refilling levels
228However, if the level goes down noticeably 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 75.
WARNING
Before opening the bonnet to check the brake fluid level, read and observe
the warnings ⇒page 215.Changing the brake fluid
The Maintenance Program indicates the brake fluid change
intervals.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 215 in
“Working in the engine compartment”.
Brake fluid absorbs moisture. In the course 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 considerably 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.
It is important that you use only 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.
•Before opening the bonnet to check the brake fluid level, read and
observe the warnings ⇒page 215.•Brake fluid should be stored in the closed original container in a safe
place out of reach of children. There is a toxic risk.•Complete the brake fluid change according to the Maintenance
Program. Heavy use of the brakes may cause a vapour lock if the brake fluid
is left in the system for too long. This would seriously affect the efficiency
of the brakes and the safety of the vehicle. This may cause an accident.Caution
Brake fluid could damage the paintwork. Wipe off any brake fluid from the
paintwork immediately.
For the sake of the environment
Brake fluid must be drained and disposed of in the proper manner observing
environmental regulations.
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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Checking and refilling levels
230•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 215 ⇒ in “Warnings on handling the battery” on
page 229.
– 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 shown in the corresponding engine compart-
ment diagram ⇒page 273.
The “magic eye” indicator, located on the top of the battery changes colour,
depending on the charge state and electrolyte level of the battery.
There are two different colours:•Black: correct charge status.•Transparent/clear yellow: the battery must be replaced. Contact a
specialist workshop.
Charging and changing the vehicle battery
The battery is maintenance-free and is checked during the
inspection service. All work on the vehicle battery requires
specialist knowledge.If you often drive short distances or if the vehicle is not driven for long
periods, the battery should be checked by a qualified workshop between the
scheduled services.
If the battery has discharged and you have problems starting the vehicle, the
battery might be damaged. If this happens, we recommend you have the
vehicle battery checked by an Authorised Service Centre where it will be re-
charged or replaced.
Charging the battery
The vehicle battery should be charged by a qualified workshop only, as
batteries using special technology have been installed and they must be
charged in a controlled environment.
Replacing a vehicle battery
The battery has been developed to suit the conditions of its location and has
special safety features.
Genuine SEAT batteries fulfil the maintenance, performance and safety spec-
ifications of your vehicle.
WARNING
•We recommend you use only maintenance-free or cycle free leak-proof
batteries which comply with the standards T 825 06 and VW 7 50 73. This
standard applies as of 2001.•Before starting any work on the batteries, you must read and observe
the warnings ⇒ in “Warnings on handling the battery” on page 229.
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Wheels and tyres
234
For the sake of the environmentUnder-inflated tyres lead to increased fuel consumption and tyre wear.Significant tyre pressure lossThe tyre symbol
 is displayed and indicates that the tyre pressure for a least
one tyre is insufficient.
– Stop the vehicle.
– Switch the engine off.
– Check the tyre(s).
– Change the wheel if necessary.
Tyre ser vice life
The service life of tyres is dependent on tyre pressure, driving
style and fitting.
Fig. 153 Tyre tread wear
indicatorsFig. 154 Diagram for
changing wheels
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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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Technical Data273
Safety First
Controls and equipment
Practical tips
Technical Data
Te c h n i c a l D a t aChecking fluid levelsFrom time to time, the levels of the different fluids in the
vehicle must be checked. Never fill with incorrect fluids,
otherwise serious damage to the engine may be caused.
Coolant expansion tank
Windscreen washer fluid reservoir
Engine oil filler cap
Engine oil dipstick
Brake fluid reservoir
Vehicle battery (underneath the cover)
The checking and refilling of service fluids are carried out on the components
mentioned above. These operations are described in the ⇒page 215. Overview
Further explanations, instructions and restrictions on the technical data as of
⇒
page 269 are given.
Fig. 186 Diagram for the
location of the various
elements
A1A2A3A4A5A6
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Index
294Braking distance . . . . . . . . . . . . . . . . . . . . . . . . 188
Bulb changes
general notes . . . . . . . . . . . . . . . . . . . . . . . 254
Bulb defect warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 82
Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118, 157CCar care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 189
Central locking . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Automatic locking system for involuntary unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Automatic speed dependent locking and un- locking system* . . . . . . . . . . . . . . . . . . . . . 95
Emergency unlocking system . . . . . . . . . . . . 95
Selective unlocking system* . . . . . . . . . . . . 94
Unlocking system* . . . . . . . . . . . . . . . . . . . . 95
Central locking button Central locking . . . . . . . . . . . . . . . . . . . . . . . 96
unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Centre console with drinks holder . . . . . . . . . . 135
Cetane number . . . . . . . . . . . . . . . . . . . . . . . . . 214
Changing gear See Manual gearbox . . . . . . . . . . . . . . . . . . 165
Changing gear with the Tiptronic gear system 169
Changing the lamps Main headlight lamps . . . . . . . . . . . . . . . . . 255
rear lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Changing the main headlight lamps
dipped beam lights . . . . . . . . . . . . . . . . . . . 256
main beam lights . . . . . . . . . . . . . . . . . . . . 257
Side lights . . . . . . . . . . . . . . . . . . . . . . . . . . 258
turn signal lamps . . . . . . . . . . . . . . . . . . . . 256
Changing the rear light lamps Position light, fog light and rear light on the tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Changing the rear lights Indicator, side and brake lights on the bodywork . . . . . . . . . . . . . . . . . . . . . . . . . 259
luggage compartment lights . . . . . . . . . . . 261
Chassis number . . . . . . . . . . . . . . . . . . . . . . . . 270
Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Checking battery electrolyte level . . . . . . . . . . 230
Checking engine oil level . . . . . . . . . . . . . . . . . 219
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Categorisation in groups . . . . . . . . . . . . . . . 46
Group 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Group 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Group 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Groups 0 and 0+ . . . . . . . . . . . . . . . . . . . . . . 46
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . 49
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Child seats on the front passenger seat . . . . . . . . . . . . . 30
Cigarette lighter* . . . . . . . . . . . . . . . . . . . . . . . . 137
Cleaning alloy wheel rims . . . . . . . . . . . . . . . . 202
Cleaning and caring for your vehicle . . . . . . . . 197 Cleaning chrome . . . . . . . . . . . . . . . . . . . . . . . . 201
Cleaning engine compartment . . . . . . . . . . . . . 203
Cleaning steel wheel rims . . . . . . . . . . . . . . . . 202
Cleaning windows . . . . . . . . . . . . . . . . . . . . . . . 200
Climatic* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Climatronic
General notes . . . . . . . . . . . . . . . . . . . . . . . 153
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Cloth seat covers cleaning . . . . . . . . . . . . . . . . 204
Clothes hook . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Coming/leaving home function . . . . . . . . . . . . 114
Control lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Control lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Controls Electric windows . . . . . . . . . . . . . . . . . . . . . 106
Light switches . . . . . . . . . . . . . . . . . . . . . . . 111
Convenience closing Sliding/tilting roof . . . . . . . . . . . . . . . . . . . 109
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Convenience opening Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . 222, 223 Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Coolant Level . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Coolant level warning light . . . . . . . . . . . . . . . . . . . . . . . . . 77
Coolant Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
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