2011 Seat Leon 5D sensor

184Intelligent technology
The ASR (TCS) is connected automatically when the engine starts. If neces-
sary, it may be turned on or off pushing the button on the centre console.
When the ASR (TCS) is disconnected, the warning lamp  OFF
lights up. The
TCS should normally be left on. Only in exceptional circumstances, when the
slipping of the wheels is required, should it be disconnected, for example
● With compact temporary spare wheel.
● When using the snow chains.
● When driving in deep snow or on soft terrain.
● When the vehicle is bogged-down, to free it by rocking.
The TCS should be switched on again as soon as possible.
WARNING
● Remember that the ASR (TCS) cannot defy the laws of physics. This
should be kept in mind, particularly on slippery and wet roads and when
towing a trailer.
● Always adapt your driving style to suit the condition of the roads and
the traffic situation. Do not let the extra safety afforded by ASR (TCS)
tempt you into taking any risks when driving.
CAUTION
● To ensure that the ASR (TCS) functions correctly, all four wheels must be
fitted with the same tyres. Any differences in the rolling radius of the tyres
can cause the system to reduce engine power when this is not desired.
● Modifications to the vehicle (e.g. to the engine, the brake system, run-
ning gear or any components affecting the wheels and tyres) could affect
the efficiency of the ABS and ASR (TCS). XDS*
Driveshaft differential
When taking a bend, the driveshaft differential mechanism allows the outer
wheel to turn at a higher speed than the inner wheel. In this way, the wheel
that is turning faster (outer wheel) receives less drive torque than the inner
wheel. This may mean that in certain situations the torque delivered to the
inner wheel is too high, causing the wheels to spin. On the other hand, the
outer wheel is receiving a lower drive torque than it could transmit. This
causes an overall loss of lateral grip on the front axle, resulting in under-
steer or “lengthening” of the trajectory.
By using the ESC (ESP) sensors and signals, the XDS system is able to de-
tect and correct this effect.
Through the ESC (ESP), the XDS brakes the inner wheel, thereby counteract-
ing the excess drive torque in this wheel. This means that the driver's de-
sired trajectory is much more precise,
The XDS system operates in combination with the ESC (ESP) and is always
active, even when the traction control ASR (TCS) is disconnected.

Electronic Stability Control ESC (ESP) *
General notes
The Electronic Stability Control increases the vehicle's stabil-
ity on the road. The Electronic Stability Control helps reduce the danger of skidding.
The Electronic Stability Control ESC (ESP) includes the ABS, EDL, ASR (TCS)
and Steering manoeuvre recommendations. 

185
Intelligent technology
Electronic Stability Control ESC (ESP)*
The ESC (ESP) reduces the danger of skidding by braking the wheels indi-
vidually.
The system uses the steering wheel angle and road speed to calculate the
changes of direction desired by the driver, and constantly compares them
with the actual behaviour of the vehicle. If the desired course is not being
maintained (for instance, if the vehicle is starting to skid), then the ESC
(ESP) compensates automatically by braking the appropriate wheel.
The forces acting on the braked wheel bring the vehicle back to a stable
condition. If the vehicle tends to oversteer, the system will act on the front
wheel on the outside of the turn.
Steering manoeuvre recommendations
This is a complementary safety function included in the ESC (ESP). This
function aids the driver to better stabilize the vehicle in a critical situation.
For example, in case of sudden braking surface with varied adherence, the
vehicle will tend to destabilise its trajectory to the right or to the left. In this
case the ESC (ESP) recognises the situation and helps the driver with a
counter steering manoeuvre from the power steering.
This function simply provides the driver with a recommended manoeuvre in
critical situations.
The vehicle does not steer itself with this function, the driver has full control
of the vehicle at all times.
WARNING
● Remember that ESC (ESP) cannot defy the laws of physics. This
should be kept in mind, particularly on slippery and wet roads and when
towing a trailer.
● Always adapt your driving style to suit the condition of the roads and
the traffic situation. Do not let the extra safety afforded by ESC (ESP)
tempt you into taking any risks when driving.
CAUTION
● To ensure that the ESC (ESP) functions correctly, all four wheels must be
fitted with the same tyres. Any differences in the rolling radius of the tyres
can cause the system to reduce engine power when this is not desired.
● Modifications to the vehicle (e.g. to the engine, the brake system, run-
ning gear or any components affecting the wheels and tyres) could affect
the efficiency of the ABS, EDL, ESC (ESP) and ASR (TCS). 
Anti-lock brake system (ABS)
The anti-lock brake system prevents the wheels locking during braking
⇒ page 183. 
Electronic differential lock (EDL)*
The electronic differential lock helps prevent the loss of trac-
tion caused if one of the driven wheels starts spinning.
EDL helps the vehicle to start moving, accelerate and climb a gradient in
slippery conditions where this may otherwise be difficult or even impossi-
ble.
The system will control the revolutions of the drive wheels using the ABS
sensors (in case of an EDL fault the warning lamp for ABS lights up)
⇒ page 84.
At speeds of up to approximately 80 km/h, it is able to balance out differen-
ces in the speed of the driven wheels of approximately 100 rpm caused by a
slippery road surface on one side of the vehicle. It does this by braking the
wheel which has lost traction and distributing more driving force to the oth-
er driven wheel via the differential. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

234Wheels and tyres
2. The tyre pressures should only be checked when the tyres are
cold. The slightly raised pressures of warm tyres must not be re-
duced.
3. Adjust the tyre pressure to the load you are carrying.
Tyre pressure
The correct tyre pressure is especially important at high speeds. The pres-
sure 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 analy-
sing 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 con-
sole.
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
ESC (ESP) ⇒ page 184.
Note that tyre pressure also depends on tyre temperature. Tyre pressure in-
creases 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 ac-
cordingly. 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. 

252If and when
Fuses on left side of dash panel
Fuses
NumberConsumerAmps
1Diagnosis Switchboard/ Instrument lighting/
Headlight control switchboard/ Flow meter/ Heat-
ed wipers/ Engine management/ AFS Headlamps10
2
Engine control unit / ABS-ESC (ESP) control unit /
Automatic gearbox / Instrument panel / Trailer
control unit/ Light switch / Brake sensor / Power
steering / Right and left headlights
10
3Airbag5
4Heating / Reverse switch / ASR-ESC (ESP) switch/
Electrochrome mirror / Park Pilot / Oil level sen-
sor5
5Right xenon headlight106Left xenon headlight107Vacant 8Trailer hook pre-installation assistant59Vacant 10Vacant 11Vacant 12Central locking15
13Diagnosis/ Light switch/ Rain sensor/ Heated
rear window10
14Automatic gearbox / Heating/ Automatic gearbox
lever10
15Vacant 16Vacant 17Alarm518Kombi / levers with START STOP5
NumberConsumerAmps19Fog light aid2020Navigation/radio with START STOP1521Engine management1022Fan switch4023Electric windows (front)3024Body Control Unit2025Heated rear window2526Rear electric windows3027Engine (fuel control unit/pump relay)1528Convenience controls3029Vacant 30Vacant 31Vacuum pump2032Vacant 33Sunroof2534Comfort switchboard/Central locking system2535Vacant 36Headlight washer system2037Heated seats3038Engine management1039Telephone with START STOP1040Fan switch4041Rear wiper motor / Switchboard wiring204212 V socket/ Cigarette lighter2043Trailer bracket preinstallation1544Trailer bracket preinstallation2045Trailer bracket preinstallation1546Vacant 47Engine management10

253
If and when
NumberConsumerAmps48Engine management1049Vacant
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 sub-
ject 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 part
Fuses
NumberConsumerAmps1Windscreen wipers302DQ200 gearbox303Cable control unit54ABS205AQ gearbox156Instrument panel/Steering column57Ignition key408Radio159Telephone/TomTom Navigator5
10Engine management5Engine management1011Vacant 12Electronic control unit5
13Petrol injection module supply15Diesel injection module supply30
NumberConsumerAmps14Coil20
15Engine management5Pump relay1016Right lighting3017Horn1518Vacant 19Clean30
20Water pump10Pressure sensor pump for 1.8 engine2021 a)Lambda probe1522Brake pedal, speed sensor5
23a)Engine management5Engine management10Engine management1524AKF, gearbox valve1025a)ABS pump4026Left lighting30
27a)Engine management40Engine management5028Vacant
29a)Electric windows (front and back)50Electric windows (front)3030Ignition key50a)
Ampere rating according to motorisation 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

Oil properties . . . . . . . . . . . . . . . . . . . . . . . . . . 221
One-touch opening and closingElectric windows . . . . . . . . . . . . . . . . . . . . . 111
Opening and locking . . . . . . . . . . . . . . . . . . . . 108
Outside temperature display . . . . . . . . . . . . 65, 73
Overview Control lamps . . . . . . . . . . . . . . . . . . . . . . . . 77
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Indicator lamps . . . . . . . . . . . . . . . . . . . . . . 79
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . 57
Warning lamps . . . . . . . . . . . . . . . . . . . . 77, 79
P Paintwork Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Parking lights . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Parking system . . . . . . . . . . . . . . . . . . . . . . . . . 175
Parking system plus . . . . . . . . . . . . . . . . . . . . . 176
Passenger see Correct sitting position . . . . . . . 10, 11, 12
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Driving abroad . . . . . . . . . . . . . . . . . . . . . . 194
Petrol additives . . . . . . . . . . . . . . . . . . . . . . . . 216
Physical principles of a frontal collision . . . . . . 21
Plastic parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Plastic parts cleaning . . . . . . . . . . . . . . . . . . . . 205
Pollen filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Pollution filter . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Power steering . . . . . . . . . . . . . . . . . . . . . . . . . 187 Products for vehicle maintenance . . . . . . . . . . 199
R Radio frequency remote control . . . . . . . . . . . 104 Changing the battery . . . . . . . . . . . . . . . . . 105
Radio navigation steering wheel controls Audio version . . . . . . . . . . . . . . . . . . . . . . . . 95
Audio + telephone version . . . . . . . . . . . . . . 95
Rain sensor* . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Rear fog light Indicator lamp . . . . . . . . . . . . . . . . . . . . . . . 82
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . 115
Rear interior lights . . . . . . . . . . . . . . . . . . . . . . 124
Rear reading lights . . . . . . . . . . . . . . . . . . . . . . 124
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Rear shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Rear window automatic wiper/washer . . . . . . 128
Rear window wiper . . . . . . . . . . . . . . . . . . . . . . 128
Recommended gear display . . . . . . . . . . . . . . . 62
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Registration light . . . . . . . . . . . . . . . . . . . . . . . 262
Remote control key Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Synchronising . . . . . . . . . . . . . . . . . . . . . . . 105
Removing and fitting the wheel . . . . . . . . . . . 247
Repairs Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Replacement keys . . . . . . . . . . . . . . . . . . . . . . 103
Replacement of parts . . . . . . . . . . . . . . . . . . . . 208
Rev counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Reverse gear
Manual gearbox . . . . . . . . . . . . . . . . . . . . . 167
Roll-back function Sliding/tilting sunroof . . . . . . . . . . . . . . . . 114
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Roof aerial* . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Roof rack* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Rubber seals . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Run-flat tyres . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Running in Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
S Safe driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Safety equipment . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety instructions Coolant temperature . . . . . . . . . . . . . . . . . . 82
Safety notes Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . 42
Deactivating front passenger airbag . . . . . . 45
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . 37
Seat belt tensioners . . . . . . . . . . . . . . . . . . . 29
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . 40
Using child seats . . . . . . . . . . . . . . . . . . . . . 46
Using seat belts . . . . . . . . . . . . . . . . . . . . . . 23
Safety system - Safe . . . . . . . . . . . . . . . . . . . . . . 98
Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Seat adjustment . . . . . . . . . . . . . . . . . . . . 132, 135
Seat belt cleaning . . . . . . . . . . . . . . . . . . . . . . 207
296 Index

TrailerTrailer towing . . . . . . . . . . . . . . . . . . . . . . . 195
Trailer turn signals Warning lamp . . . . . . . . . . . . . . . . . . . . . . . 122
Trailer weights . . . . . . . . . . . . . . . . . . . . . . . . . 271
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Indicator lamp . . . . . . . . . . . . . . . . . . . . . . . 83
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . 122
Tyre Mobility-System (Tyre repair kit) . . . . . . . 242
Tyre Mobility System (Tyre repair kit) . . . . . . . 248
Tyre pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 233 Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Tyre pressure monitoring . . . . . . . . . . . . . . . . . 234
Tyre pressures . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Tyre pressure warning lamp . . . . . . . . . . . . . . . . 85
Tyre repair kit . . . . . . . . . . . . . . . . . . . . . . 242, 248
Tyres and wheels Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 238
Tyres service life . . . . . . . . . . . . . . . . . . . . . . . . 235
Tyres tread depth . . . . . . . . . . . . . . . . . . . . . . . 236
Tyres with directional tread pattern . . . . . . . . 233
U Underbody protection . . . . . . . . . . . . . . . . . . . 204
Unlocking and locking Personalisation . . . . . . . . . . . . . . . . . . . . . 100
V Vehicle battery . . . . . . . . . . . . . . . . . . . . . . . . . 230
Vehicle data . . . . . . . . . . . . . . . . . . . . . . . . . . . 270 Vehicle identification data . . . . . . . . . . . . . . . . 270
Vehicle identification number . . . . . . . . . . . . . 270
Vehicle modifications . . . . . . . . . . . . . . . . . . . 208
Vehicle paintwork
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 202
Products for vehicle maintenance . . . . . . . 199
Vehicle tools Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Vehicle washing . . . . . . . . . . . . . . . . . . . . . . . . 200
Ventilation slits . . . . . . . . . . . . . . . . . . . . . . . . . 17
Volumetric sensor* Activation . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Deactivation . . . . . . . . . . . . . . . . . . . . . . . . 106
W Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Warning lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Warning messages in the display . . . . . . . . . . . 66
Warning reports Red . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66, 80
Yellow . . . . . . . . . . . . . . . . . . . . . . . . . . . 66, 80
Warning symbols . . . . . . . . . . . . . . . . . . . . . . . . 80
Warning triangle . . . . . . . . . . . . . . . . . . . . . . . . 142
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Washing by hand . . . . . . . . . . . . . . . . . . . . . . . 200
Washing the vehicle . . . . . . . . . . . . . . . . . . . . . 200
Washing with high pressure cleaners . . . . . . . 201
Water Warning message . . . . . . . . . . . . . . . . . . . . . 67
Water in the windscreen washer tank . . . . . . . 226
Wear indicators . . . . . . . . . . . . . . . . . . . . . . . . 236 Wearing suitable shoes . . . . . . . . . . . . . . . . . . . 16
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . 245, 272
Tightening torque . . . . . . . . . . . . . . . . . . . . 239
Wheel change . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 233, 272
Wheel trims . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Why assume the correct sitting position? . . . . . 30
Why should head restraints be correctly adjus- ted? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Why wear seat belts? . . . . . . . . . . . . . . . 19, 21, 30
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Windscreen washer fluid Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 84
Windscreen wiper blades Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Windscreen wipers . . . . . . . . . . . . . . . . . . . . . . 125 Changing the front blades . . . . . . . . . . . . . 227
Changing the rear wiper blade . . . . . . . . . 228
Winter driving Diesel engine . . . . . . . . . . . . . . . . . . . . . . . 216
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Wooden trim cleaning . . . . . . . . . . . . . . . . . . . 206
Working in the engine compartment . . . . . . . 217
298 Index