2010 Seat Leon 5D heating

Driving and the environment
194change down into a lower gear or range (depending on the type of trans-
mission). This makes use of engine braking and relieves the brakes.•Never let the brakes “drag” by applying light pressure. Continuous
braking will cause the brakes to overheat and the braking distance will
increase. Apply and then release the brakes alternately.•Never let the vehicle run with the engine switched off. The braking
distance is increased considerably when the brake servo is not active.•If the brake fluid loses its viscosity and is subjected to heavy use,
vapour bubbles can form in the brake system. This reduces the efficiency of
the brakes.•Non-standard or damaged front spoilers could restrict the airflow to the
brakes and cause them to overheat. Before purchasing accessories please
observe the relevant instructions ⇒page 212, “Technical modifications”.•If a brake circuit fails, the braking distance will be increased consider-
ably. Contact a specialised workshop immediately and avoid unnecessary
journeys.
Exhaust gas purification systemCatalytic converter*To maintain the useful life of the catalytic converter
– Use only unleaded petrol with petrol engines, as lead damages the catalytic converter.
– Do not let the fuel get too low in the tank. – For engine oil changes, do not replenish with too much engine oil
⇒page 226, “Topping up engine oil E”.
– Never tow the vehicle to start it, use jump leads if necessary ⇒page 267.
If you notice misfiring, uneven running or loss of power when the vehicle is
moving, reduce speed immediately and have the vehicle inspected at the
nearest specialised workshop. In general, the exhaust gas warning lamp will
light up when any of the described symptoms occur ⇒page 77. If this
happens, unburnt fuel can enter the exhaust system and escape into the envi-
ronment. The catalytic converter can also be damaged by overheating.
WARNING
The catalytic converter reaches very high temperatures! There is a risk of
fire.•Never park where the catalytic converter could come into contact with
dry grass or flammable materials under the vehicle.•Do not apply additional underseal or anti-corrosion coatings to the
exhaust pipes, catalytic converter or the heat shields on the exhaust
system. These materials could catch fire when the vehicle is being driven.Caution
Never run the fuel tank completely dry because the irregularity of the fuel
supply may cause ignition problems. This allows unburnt fuel to enter the
exhaust system, which could cause overheating and damage the catalytic
converter.
For the sake of the environment
Even when the emission control system is working perfectly, there may be a
smell of sulphur from the exhaust gas under some conditions. This depends
WARNING (continued)
Leon_EN.book Seite 194 Mittwoch, 1. September 2010 6:16 18

Driving and the environment197
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Save electricity
The engine activates the alternator, which produces electricity. With the need
for electricity, fuel consumption is also increased. Because of this, always
turn off electrical components when you do not need them. Examples of
components that use a lot of electricity are: the fan at high speeds, the rear
window heating or the seat heaters*.
Note
•If you vehicle has
Start-Stop, it is not recommended to disconnect this
function.•It is recommended to close the windows when driving at more than 60
km/h•Do not drive with your foot resting on the clutch pedal, as the pressure can
make the plate spin, more fuel will be used and it can burn the clutch plate
lining, causing a serious fault.•Do not hold the vehicle on a hill with the clutch, use the foot brake or hand
brake, using the latter to start. The fuel consumption will be lower and you will
prevent the clutch plate from being damaged.•On descents, use the engine brake, changing to the gear that is more suit-
able for the slope. The fuel consumption will be lower and the brakes will not
suffer.Environmental friendlinessEnvironmental protection is a top priority in the design, choice of materials
and production of your new Seat.
Design measures for economical recycling•Joints and connections designed for easy dismantling•Modular construction to facilitate dismantling•Increased use of single-grade materials
•Plastic parts and elastomers are rated in accordance with ISO 1043, ISO
11469 and ISO 1629
Choice of materials•Nearly all materials used can be recycled•Similar types of plastics grouped together for easy recycling•Recycled materials used in manufacture•Reduction of volatile compounds in plastics•CFC-free refrigerant in air conditioner
Compliance with prohibited materials regulation : cadmium, lead, mercury,
chrome VI.
Manufacturing methods•Use of recycled material for manufacturing plastic parts•Solvent-free cavity sealing•Solvent-free wax for protecting the vehicles in transit•Solvent-free adhesives•No CFCs used in production•Surplus materials used extensively for energy conversion and building
materials•Overall water consumption reduced•Heat recovery systems•The use of water-soluble paints
Leon_EN.book Seite 197 Mittwoch, 1. September 2010 6:16 18

Trailer towing
200•Find out whether special regulations apply to towing a trailer in your
country.Ball coupling of towing bracket*Depending on the model version, the spherical head on the trailer hook may
be found in the tool box.
The ball coupling is provided with instructions on fitting and removing the
ball coupling of the towing bracket.
WARNING
The towing bracket ball coupling must be stored securely in the luggage
compartment to prevent them being flung through the vehicle and causing
injury.
Note
•By law, the ball coupling must be re moved if a trailer is not being towed
and it obscures the number plate.Driving tipsDriving with a trailer always requires extra care.Weight distribution
The weight distribution of a loaded trailer with an unladen vehicle is very
unfavourable. However, if this cannot be avoided, drive extra slowly to allow
for the unbalanced weight distribution. Speed
The stability of the vehicle and trailer is reduced with increasing speed. For
this reason, it is advisable not to drive at the maximum permissible speed in
an unfavourable road, weather or wind conditions. This applies especially
when driving downhill.
You should always reduce speed immediately if the trailer shows the slightest
sign of
snaking . Never try to stop the “snaking” by increasing speed.
Always brake in due course. If the trailer has an overrun brake, apply the
brakes gently at first and then, firmly. This will prevent the jerking that can be
caused by the trailer wheels locking. Select a low gear in due course before
going down a steep downhill. This enables you to use the engine braking to
slow down the vehicle.
Reheating
At very high temperatures and during prolonged slopes, driving in a low gear
and high engine speed, always monitor the coolant temperature gauge
⇒ page 55.
Electronic Stability Programme*
The ESP* system helps to stabilise the trailer in case of skidding or rocking.
Leon_EN.book Seite 200 Mittwoch, 1. September 2010 6:16 18

Vehicle maintenance and cleaning207
Safety First
Operating Instructions
Practical Tips
Technical Specifications
screen washer fluid prevents wiper blades from juddering, but wax deposits
are not removed.
Caution
•Never use warm or hot water to remove snow and ice from windows and
mirrors. This could cause the glass to crack!•The heating element for the rear window is located on the inner side of the
window. To prevent damage, do not put stickers on the heating elements
inside the window.Cleaning windscreen wiper bladesClean wiper blades improve visibility.
1. Use a soft cloth to remove dust and dirt from the windscreen wiper blades.
2. Use window cleaner to clean the windscreen wiper blades. Use a sponge or a cloth to remove stubborn dirt.Rubber seals maintenance
If rubber seals are well looked after, they will not freeze so
quickly.1. Use a soft cloth to remove dust and dirt from the rubber seals.
2. Apply a specialist care product to the rubber seals.
The rubber strips on the doors, windows, bonnet and tailgate will remain
pliable and last longer if they are treated with a suitable care product (for
example silicone spray).
Caring for rubber seals will also prevent premature ageing and leaks. The
doors will be easier to open. If rubber seals are well looked after, they will not
freeze so quickly in winter.Door lock cylinders
The door lock cylinders can freeze up in winter.To de-ice the lock cylinders you should only use spray with lubricating and
anti-corrosive properties.Cleaning chrome parts1. Clean chrome parts with a damp cloth.
2. Polish chrome parts with a soft, dry cloth.If this does not provide satisfying results, use a specialist chrome cleaning
product . Chrome cleaning products will remove stains from the surface.
Caution
To prevent scratching chrome surfaces:•Never use an abrasive cleaning product on chrome.•Do not clean or polish chrome parts in a sandy or dusty environment.
Leon_EN.book Seite 207 Mittwoch, 1. September 2010 6:16 18

Wheels and tyres
238
2. The tyre pressures should only be checked when the tyres are cold. The slightly raised pressu res of warm tyres must not be
reduced.
3. Adjust the tyre pressure to the load you are carrying.Tyre pressure
The correct tyre pressure is especially important at high speeds. The pressure
should therefore be checked at least once a month and before starting a
journey.
The sticker with the tyre pressure values can be found on the inside of the
tank flap. The tyre pressure values given are for cold tyres. Do not reduce the
slightly raised pressures of warm tyres ⇒.
WARNING
•Check the tyre pressure at least once per month. Checking the tyre
pressure is very important. If the tyre pressure is too high or too low, there
is an increased danger of accidents - particularly at high speeds.•A tyre can easily burst if the pressure is too low, causing an accident!•At continuously high speeds, a tyre with insufficient pressure flexes
more. In this way it becomes too hot, and this can cause tread separation
and tyre blow-out. Always observe the recommended tyre pressures.•If the tyre pressure is too low or too high, the tyres will wear prema-
turely and the vehicle will not handle well. Risk of accident!For the sake of the environment
Under-inflated tyres will increase fuel consumption.
Tyre pressure monitoring
The tyre pressure monitoring system constantly checks the
pressure of the tyres.The system uses the speed sensors of the ABS wheels. It operates by
analysing the speed and frequency spectrum of each wheel.
For optimum performance, use genuine SEAT tyres. In addition, check and
adjust tyre pressures regularly.
Whenever the tyre pressures are changed or one or more tyres are changed,
the system should be Reset by pressing the SET switch on the centre console.
The system warns the driver in the event of a loss of pressure by means of
symbols and messages in the instrument panel display. The system uses ESP
⇒ page 187.
Note that tyre pressure also depends on tyre temperature. Tyre pressure
increases about 0.1 bar for each 10 °C in tyre temperature increase. The tyre
heats up while the vehicle is being driven and the tyre pressure will rise
accordingly. For this reason, you should only adjust the tyre pressures when
they are cold (i.e. approximately at ambient temperature).
To ensure that the tyre pressure monitoring system works reliably, you should
check and, if necessary, adjust the tyre pressures at regular intervals and
store the correct pressures (reference values) in the system.
A tyre pressure information label is attached to the inside of the fuel tank flap.
WARNING
•Never adjust tyre pressure when the tyres are hot. This may damage or
even burst the tyres. Risk of accident!•An insufficiently inflated tyre flexes a lot more at high speeds and
causes significant heating of the tyre. Under these conditions, the tyre
bead may be released or the tyre may burst. Risk of accident!
Leon_EN.book Seite 238 Mittwoch, 1. September 2010 6:16 18

Wheels and tyres241
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Driving with run-flat tyres (emergency running)
– Leave the ESP/TCS (Electronic Stability Programme) switched on,
or switch on ⇒page 186.
– Continue driving carefully and slowly (80 km/h maximum).
– Avoid sudden manoeuvres and sharp turns.
– Avoid driving over obstacles (for example kerbs) or potholes.
– Look out for the ESP/TCS intervening often, smoke coming from the tyres or the smell of rubber, the vehicle vibrating or a clat-
tering noise. If any of these occur, stop the vehicle.The run-flat tyres have a tag on the side of the tyre, with the description:
“DSST”, “Eufonia”, “RFT”, “ROF”, “RSC”, “SSR” or “ZP”.
The sides of this type of tyre are reinforced. When the tyres lose air they are
supported on the sides (emergency driving).
The loss of pressure in the tyre is shown on the instrument panel. You can
then drive a maximum of 80 km and if the circumstances are favourable (for
example, low load), even more.
The damaged tyre should be changed as soon as possible. The rim should be
checked in a specialised workshop to detect possible damage and replace it
if necessary. We recommend you contact Technical Service. If more than one
tyre is being used under emergency conditions, this reduces the distance
which can be travelled.
Starting driving in emergency conditions
When loss in tyre pressure is displayed on the instrument panel, this means
that at least one tyre is being driven in emergency conditions ⇒.
End of emergency operation
Do not drive on if:
•smoke is coming from one of the tyres,•there is a smell of rubber,•the vehicle vibrates,•there is a rattling noise.
When is it no longer possible to continue driving even using run-flat tyres?•If one of the tyres has been severely damaged in an accident, etc. If a tyre
has been badly damaged there is a risk that parts of the tread can be thrown
off and cause damage to the fuel lines, brake pipes or fuel filler.•It is also advisable to stop driving if severe vibrations occur, or if the wheel
starts overheating and gives off smoke.WARNING
When driving in emergency conditions, the driving quality of the vehicle is
considerably impaired.•The maximum permitted speed of 80 km/h is subject to road and
weather conditions. Please observe legal requirements when doing so.•Avoid sharp turns and rapid manoeuvres, and brake earlier than usual.•Avoid driving over obstacles (for example kerbs) or potholes.•If one or more tyres are being driven in emergency conditions, the
driving quality of the vehicle is impaired and there is a risk of accident.Note
•The run-flat tyres do not “deflate” on losing pressure because they are
supported on the reinforced sides. Therefore defects in the tyre cannot be
detected with a visual inspection.•Snow chains must not be used on front tyres used in emergency
conditions.
Leon_EN.book Seite 241 Mittwoch, 1. September 2010 6:16 18

If and when257
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Fuses on left side of dash panelFusesNumber
Consumer
Amps
1
Diagnosis Switchboard/ Instrument lighting/
Headlight control switchboard/ Flow meter/
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 and 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
Vaca n t
8
Trailer hook pre-installation assistant
5
9
Vaca n t
10
Vaca n t
11
Vaca n t
12
Central locking
15
13
Diagnosis/ Light switch/ Rain sensor/ Heated rear
window
10
14
Automatic gearbox / Heating/ Automatic gearbox
lever
10
15
Vaca n t
16
Vaca n t
17
Alarm
5
18
Kombi / levers with START STOP
5
19
Fog light aid
20
20
Navigation/radio with START STOP
15
21
Engine management
10
22
Fan switch
40
23
Electric windows (front)
30
24
Body Control Unit
20
25
Heated rear window
25
26
Rear electric windows
30
27
Engine (fuel control unit/pump relay)
15
28
Convenience controls
30
29
Vaca n t
30
Vaca n t
31
Vacu um pu m p
20
32
Vaca n t
33
Sunroof
25
34
Comfort switchboard/Central locking system
25
35
Vaca n t
36
Headlight washer system
20
37
Heated seats
30
38
Engine management
10
39
Telephone with START STOP
10
Number
Consumer
Amps
Leon_EN.book Seite 257 Mittwoch, 1. September 2010 6:16 18

Index301
Headlights
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . 198
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Headlight washer system* . . . . . . . . . . . . . 131
Heated front seats . . . . . . . . . . . . . . . . . . . . . . . 139
Heated rear window 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . 155
Heating element wires . . . . . . . . . . . . . . . . 207
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
High pressure cleaners . . . . . . . . . . . . . . . . . . . 205
Hill-start aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
How to jump start description . . . . . . . . . . . . . 268
Hydraulic Brake Assist . . . . . . . . . . . . . . . . . . . . 185IIdentification number . . . . . . . . . . . . . . . . . . . . 274
Identification plate . . . . . . . . . . . . . . . . . . . . . . 274
Ignition key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Information in the multifunction display Memory displays . . . . . . . . . . . . . . . . . . . . . . 64
Information messages in the display . . . . . . . . . 66
Instrument and switch lighting . . . . . . . . . . . . . 121
Instrument lighting . . . . . . . . . . . . . . . . . . . . . . . 55
Instrument panel menus Configuration menu . . . . . . . . . . . . . . . . . . . . 74
Example of menu use . . . . . . . . . . . . . . . . . . 68
Lights and visibility menu . . . . . . . . . . . . . . . 76 Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Vehicle status menu . . . . . . . . . . . . . . . . . . . 73
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Interior lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Interior mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
JJump leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . 267KKeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105LLeather cleaning . . . . . . . . . . . . . . . . . . . . . . . . 210
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Load compartment in the luggage compartment See Loading the luggage compartment . . . . 16
Loading the luggage compartment . . . . . . . . . . 16
Locker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
LPG . . . . . . . . . . . . . . . . . . . . . . . . . . . 60, 166, 216
LPG system Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Filler neck adapter . . . . . . . . . . . . . . . . . . . . 218
Level indicator . . . . . . . . . . . . . . . . . . . . . . . . 60
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Luggage compartment . . . . . . . . . . . . . . . . . . . 146
See also Loading the luggage compartment 16
MMain beam . . . . . . . . . . . . . . . . . . . . . . . . 117, 124
Main beam headlights
Indicator lamp . . . . . . . . . . . . . . . . . . . . . . . . 84
Main headlight bulbs . . . . . . . . . . . . . . . . . . . . 260
Maintenance Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Maintenance and cleaning . . . . . . . . . . . . . . . . 203
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . 170
Manual mode 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . 157
MEDIA-IN connector . . . . . . . . . . . . . . . . . . . . . . 145
MFI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Mirrors Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 132
Interior mirror . . . . . . . . . . . . . . . . . . . . . . . . 131
Vanity mirrors . . . . . . . . . . . . . . . . . . . . . . . 127
Mobile phones and two-way radios . . . . . . . . . 213
Multifunction display . . . . . . . . . . . . . . . . . . . . . 63NNumber of seats . . . . . . . . . . . . . . . . . . . . . . . . . 19OObservations . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Leon_EN.book Seite 301 Mittwoch, 1. September 2010 6:16 18