2010 Seat Leon 5D bonnet

Checking and refilling levels231
Safety First
Operating Instructions
Practical Tips
Technical Specifications
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. 148 .
Fitting the wiper blade
– Insert the tab into the slot of the blade ⇒fig. 148 . – Move the blade towards the arm in the opposite direction of the
arrow ,until it clicks into position ⇒fig. 148 .
– Push the wiper arms back against the windscreen.
If the windscreen wipers smear , t h e y s h o u l d b e r e p la ce d i f t h e y a r e d a m a ge d ,
or cleaned if they are soiled.
If this does not produce the desired results, the setting angle of the wind-
screen wiper arms might be incorrect. They should be checked by a special-
ised workshop and corrected if necessary.
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
•Damaged or dirty windscreen wipers could scratch the windscreen.•Never use fuel, nail varnish remover, paint thinner or similar products to
clean the windows. This could damage the windscreen wiper blades.•Never move the windscreen wiper or windscreen wiper arm manually. This
could cause damage.•Do not pull the windscreen wipers forward unless they are in the service
position. Otherwise the bonnet could be damaged.Note
•The wiper arms can be moved to the service position only when the
bonnet is properly closed.
Fig. 148 Changing the
front wiper blades
AAA1
A2
A3
A1
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Checking and refilling levels233
Safety First
Operating Instructions
Practical Tips
Technical Specifications
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 illustration ⇒page 277. 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 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 77.
WARNING
Before opening the bonnet to check the brake fluid level, read and observe
the warnings ⇒page 221.Changing the brake fluid
The Maintenance Programme 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 221 in
section “Safety notes for 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 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. 151 In the engine
compartment: Brake fluid
reservoir cover
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Checking and refilling levels
234•Before opening the bonnet to check the brake fluid level, read and
observe the warnings ⇒page 221.•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
Programme. 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 effi-
ciency of the brakes and the safety of the vehicle. This may cause an acci-
dent.Caution
Brake fluid could damage the paintwork. Wipe off any brake fluid from the
paintwork immediately.
For the sake of the environment
The brake pads and fluid must be collected and disposed of according the
applicable regulations. The SEAT Technical Service network has the necessary
equipment and qualified personnel for collecting and disposing of this waste
material.
Vehicle 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. Neutralise 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, open flames and smoking are prohibited. When handling
cables and electrical equipment, av oid causing sparks and electrostatic
WARNING (continued)

Wear eye protection

Battery acid is very corrosive and caustic. Wear protective
gloves and eye protection!
Ž
Fires, sparks, open flames and smoking are prohibited!
Ÿ
A highly explosive mixture of gases is released when the bat-
tery is under charge.

Keep children away from acid and batteries!
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Checking and refilling levels235
Safety First
Operating Instructions
Practical Tips
Technical Specifications
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 could cause an explosion. 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 freezing. 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 engine bonnet and the battery cover ⇒ in “Safety
instructions on working in the engine compartment” on
page 221 ⇒ in “Warnings on handling the battery” on
page 234.
– 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 277.
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 special-
ised workshop.
WARNING (continued)
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If and when261
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Turn signal bulbs– Raise the bonnet.
– Rotate the bulb holder ⇒fig. 164 to the left and pull.
– Remove the bulb by pressing on the bulb holder and rotating at the same time to the left.
– Installation is done in the reverse order.
Dipped beam headlights– Raise the bonnet
Fig. 164 Turn signal
AA
Fig. 165 Dipped beam
headlightsFig. 166 Dipped beam
headlights
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If and when
262
– Remove the loops ⇒page 261, fig. 165 in the direction of
the arrow and remove the cover.
– Remove the connector ⇒page 261, fig. 166 from the bulb.
– Unclip the retainer spring ⇒page 261, fig. 166 pressing
inwards to the right.
– Remove the bulb and fit the replacement so that the rim of the attachment plate is on the reflector cut-out.Main beam headlights
– Raise the bonnet
– Remove the cover ⇒fig. 167 by pulling on this.
– Remove the connector ⇒fig. 168 from the bulb.
–Press the spring ⇒fig. 168 inwards and to the right.
– Extract the bulb and fit the replacement so that it sits correctly into the cut-out on the reflector.
– Installation is done in the reverse order.
A1
A2A3
Fig. 167 Main beam
headlights
Fig. 168 Main beam
headlights
AC
A1
A2
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If and when263
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Side lights– Raise the bonnet.
– Remove the cover ⇒fig. 169 by pulling on this. – Extract the bulb holder
⇒fig. 170 outwards.
– Replace the bulb by pulling it out and inserting the replacement.
– Installation is done in the reverse order.
Ta i l l i g h t s•On the body
- Turn signal, side and brake light•On the tailgate
- Left side: side and fog lights.
- Right side: side and reverse.Turn signal, side and brake lights on the body
Fig. 169 Side lightsFig. 170 Side lights
AD
A1
Fig. 171 Turn signal, side
and brake lights on the
bodywork
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Index297
Index
AABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 84
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Acoustic signal . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Acoustic warning . . . . . . . . . . . . . . . . . . . . . . . . 162
Adaptive headlights . . . . . . . . . . . . . . . . . . . . . 121
Adjusting the seat belt height . . . . . . . . . . . . . . 27
AFS (cornering lights) . . . . . . . . . . . . . . . . . . . . 122
Air conditioner General notes . . . . . . . . . . . . . . . . . . . . . . . . 158
Air conditioner automatic mode 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . 156
Air conditioner* 2C-Climatronic* . . . . . . . . . . . . . . . . . . . . . . 154
Air conditioning* . . . . . . . . . . . . . . . . . . . . . . . . 150
Air recirculation mode 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . 158
Manual air conditioner . . . . . . . . . . . . . . . . 152
Airbag covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . 41
front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 31
Alarm system Switching off . . . . . . . . . . . . . . . . . . . . . . . . 108 All-wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Alternator
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 85
Anti-freeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Anti-lock brake system . . . . . . . . . . . . . . . . . . . 186 Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 84
Anti-theft alarm Switching off . . . . . . . . . . . . . . . . . . . . . . . . 108
Anti-theft alarm system . . . . . . . . . . . . . . . . . . . 108
Anti-theft wheel bolts . . . . . . . . . . . . . . . . . . . . 249
Aquaplaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Ashtray* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Aspects to take into account before starting the vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Automatic anti-dazzle interior mirror* Activating the anti-dazzle function . . . . . . 132
Deactivating anti-dazzle function . . . . . . . . 132
Automatic car wash tunnel . . . . . . . . . . . . . . . . 204
Automatic gearbox Kick-down feature . . . . . . . . . . . . . . . . . . . . 175
Automatic gearbox / DSG automatic gearbox . 171
Automatic lighting . . . . . . . . . . . . . . . . . . . . . . . 118
Automatic windscreen wiper/washer . . . . . . . . 127
Auxiliary audio connection: AUX-IN . . . . . . . . . 144
BBall coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Battery
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Winter conditions . . . . . . . . . . . . . . . . . . . . 234
Before starting the vehicle . . . . . . . . . . . . . . . . . . 8
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Biodiesel fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 66
Brake pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Brake pedal warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 89
Brake servo . . . . . . . . . . . . . . . . . . . . . . . 185, 193
Brake system . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 Brake servo . . . . . . . . . . . . . . . . . . . . . . . . . 190
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 86
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 Worn brake pads . . . . . . . . . . . . . . . . . . . . . . 85
Braking distance . . . . . . . . . . . . . . . . . . . . . . . . 193
Bulb changes General notes . . . . . . . . . . . . . . . . . . . . . . . 259
Bulb defect warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 87
Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124, 162
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