2012 Seat Leon 5D brake sensor

199
Care and cleaning
Washing the car by hand
When washing the car by hand, use plenty of water to soften the dirt first,
and rinse off as well as possible.
Then clean the vehicle with a soft sponge, glove or brush using only slight
pressure. You should start on the roof and work down. Special car shampoo
should only be used for very persistent dirt.
Rinse the sponge or glove thoroughly and often.
Wheels, sills and similar should be cleaned last. Use a second sponge for
this.
WARNING
● The vehicle should only be washed with the ignition switched off.
Failure to do so could result in an accident.
● Do not clean the underside of chassis, the inside of wheel arches or
wheel trims without protecting your hands and arms. You may cut your-
self on sharp-edged metal parts. Otherwise, there is a risk of sustaining
cuts.
● When washing the car during the winter season: water and ice in the
brake system can reduce braking effectiveness: risk of accident!
CAUTION
● Do not wash the vehicle in direct sunlight – otherwise the paint can be
damaged.
● Do not use sponges, abrasive household sponges or similar to clean in-
sect remains. This could damage the surface.
● Clean off stubborn dirt (insects, etc.) from the headlights at regular in-
tervals, for instance when filling the fuel tank. The headlights should only
be washed with water, do not wipe them with a dry cloth or sponge. It is
best to use soapy water. ●
Never wash tyres with a jet that sprays the water out in a direct stream.
This could damage the tyres even if the spray is kept at a distance and only
used for a very short time.
● Before washing the vehicle in an automatic car wash, please make sure
to retract the exterior mirrors to prevent them from being damaged. Electri-
cally retractable exterior mirrors must not be folded in or out by hand. Al-
ways use the electrical power control.
For the sake of the environment
The car should only be washed in special wash bays. This prevents oily wa-
ter from getting into the public drains. In some places, washing vehicles
anywhere else may be prohibited. 
Sensors and camera lenses
● Use a small brush to remove snow and a de-icer spray to remove ice.
● Clean the sensors with a solvent-free product and a soft, dry cloth.
● Moisten the camera lens using a standard alcohol-based glass cleaning
agent and clean the lens with a dry cloth. The area in front of the active
Lane Assist* lens area is normally cleaned with the windscreen washer.
CAUTION
● When you clean the vehicle with a pressure washer,
– stay a suitable distance from the sensors on the front and rear bump-
ers.
– Do not clean the camera lenses or surrounding area with the pressure
washer.
● Never use warm or hot water to remove snow and ice from the reverse
camera lens, as it could crack the lens.
● Never use abrasive cleaning agents on the lens. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

251
Fuses and bulbs
No.Electrical consumerAmpsF29Vacant-F30Vacant-F31Left lights40F32Parking aid control unit7,5F33Airbag5
F34Reverse switch, clima sensor, electrochromic
mirror7,5
F35Diagnosis, headlight control unit, headlight ad-
juster10
F36Front camera10F37Vacant-F38Vacant-F39Right door30F4012V socket20F41Steering column20F42Central locking40F43Interior light30F44Vacant-F45Vacant-F47Rear window wiper15F49Starter motor; clutch sensor5F51Vacant-F53Heated rear window30
The electric windows and electric seats* are protected by circuit breakers.
These switch on again automatically after a few seconds when the overload
(caused for example by frozen windows) has been corrected.
Note
Please note that the above list, while correct at the time of printing, is sub-
ject to alterations. 
Fuses on left side of engine compartment
No.Electrical consumerAmpsF1Vacant-F2ESC control unit40F3Engine control unit (diesel/petrol)15/30F4Engine sensors5/10F5Engine sensors7,5/10F6Brake light sensor5F7Engine power supply5/10F8Lambda probe10F9Engine5/10/20F10Fuel pump control unit15/20F11PTC40F12PTC40F13Automatic gearbox control unit15/30F15Horn15F16Fuel pump control unit20F17Engine control unit7,5F18Terminal 30 (positive reference)5F19Front windscreen washer30F20Alarm horn10F22Engine control unit5F23Starter motor30 
Safety FirstOperating instructionsPractical TipsTechnical specifications

Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 217
Brake servo . . . . . . . . . . . . . . . . . . . . . . . . . 185
New brake pads . . . . . . . . . . . . . . . . . . . . . 185
Braking Brake assist system . . . . . . . . . . . . . . . . . . 183
Moving off on a hill . . . . . . . . . . . . . . . . . . 148
C
Carbon components: Cleaning . . . . . . . . . . . . 200
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Care of vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 198
Care (paint care) . . . . . . . . . . . . . . . . . . . . . . . . 200
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 190
CD-ROM reader (navigation) . . . . . . . . . . . . . . 130
Central locking Anti-theft alarm . . . . . . . . . . . . . . . . . . . . . . 93
Central locking switch . . . . . . . . . . . . . . . . . 93
Electric windows . . . . . . . . . . . . . . . . . . . . . 101
Programming . . . . . . . . . . . . . . . . . . . . . . . . 92
Remote control key . . . . . . . . . . . . . . . . . . . . 91
Selective unlocking system . . . . . . . . . . . . . 91
Sliding/tilting sunroof . . . . . . . . . . . . . . . . 101
Central locking system . . . . . . . . . . . . . . . . . . . . 86 Manual locking in an emergency . . . . . . . . 97
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Cetane number (Diesel fuel) . . . . . . . . . . . . . . 207
Changing Windscreen and rear window wiper blades . .221
Changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 252 Bulb sizes . . . . . . . . . . . . . . . . . . . . . . . . . . 252 Changing gear
Engaging gears (manual gearbox) . . . . . . 152
Manual gearbox . . . . . . . . . . . . . . . . . . . . . 152
Changing main headlight main beam . . . . . . . . . . . . . . . . . . . . . . . . . 255
turn signal . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Changing main headlight bulbs daylight bulb . . . . . . . . . . . . . . . . . . . . . . . 254
Dipped beam . . . . . . . . . . . . . . . . . . . . . . . 254
Changing the battery of the vehicle key . . . . . . . . . . . . . . . . . . . . . 90
Chassis number . . . . . . . . . . . . . . . . . . . . . . . . 264
Child-proof lock Electric windows . . . . . . . . . . . . . . . . . . . . . 100
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Child seat Categorisation in groups . . . . . . . . . . . . . . . 49
Group 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Group 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Group 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Groups 0 and 0+ . . . . . . . . . . . . . . . . . . . . . . 49
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 47
Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . 54
on the front passenger seat . . . . . . . . . . . . . 31
Top Tether system . . . . . . . . . . . . . . . . . 54, 55
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Alcantara . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Carbon components . . . . . . . . . . . . . . . . . . 200
Display/Easy Connect control panel . . . . . 202
Exhaust pipe . . . . . . . . . . . . . . . . . . . . . . . . 201 Leather . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Plastic parts . . . . . . . . . . . . . . . . . . . . 200, 202
Radio display . . . . . . . . . . . . . . . . . . . . . . . 202
Rims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Trim parts . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Trims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Washing the vehicle . . . . . . . . . . . . . . . . . . 198
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Windscreen and rear window wiper blades . .221
Cleaning/De-icing the windows . . . . . . . . . . . 201
Cleaning the rims . . . . . . . . . . . . . . . . . . . . . . . 201
Cleaning the upholstery Natural leather . . . . . . . . . . . . . . . . . . . . . . 203
Closing Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Panoramic sliding sunroof . . . . . . . . . . . . . 103
Panoramic sunroof . . . . . . . . . . . . . . . . . . . 103
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Clutch (warning lamp) . . . . . . . . . . . . . . . . . . . 162
Coming Home . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Compartments . . . . . . . . . . . . . . . . . . . . . . . . . 129
Consumption (fuel) . . . . . . . . . . . . . . . . . . . . . 264
Control lamp Airbag system . . . . . . . . . . . . . . . . . . . . . . . . 33
Cruise control . . . . . . . . . . . . . . . . . . . . . . . 164
Tyre monitor indicator warning lamp . . . . 175
Tyre monitoring systems . . . . . . . . . . . . . . 175
Windscreen wiper fluid level . . . . . . . . . . . 117
Control lamps Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Control of function Rain sensor . . . . . . . . . . . . . . . . . . . . . . . . . 120
278 Index

Outside temperature . . . . . . . . . . . . . . . . . . . . . 64
Outside temperature display . . . . . . . . . . . . . . . 73
OverviewTurn signal and main beam lever . . . . . . . 107
Overview (controls and displays) . . . . . . . . . . . 59
P Paint code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Paint damage . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Panoramic sliding sunroof . . . . . . . . . . . . . . . . 103 Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Convenience closing . . . . . . . . . . . . . . . . . 104
Convenience opening . . . . . . . . . . . . . . . . 104
Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Roll-back function . . . . . . . . . . . . . . . . . . . 104
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Parking aid Adjusting the display/audible warnings . 181
Environment warning . . . . . . . . . . . . . . . . . 179
Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Plus parking aid . . . . . . . . . . . . . . . . . . . . . 179
Rear parking aid . . . . . . . . . . . . . . . . . . . . . 179
Sensors/Camera: cleaning . . . . . . . . . . . . 199
Towing bracket . . . . . . . . . . . . . . . . . . . . . . 182
Parking aid system see Parking aid . . . . . . . . . . . . . . . . . . . . . . 179
Parking light . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Parking (automatic gearbox) . . . . . . . . . . 156, 157
Particulate filter (Diesel) . . . . . . . . . . . . . . . . . 190 Passenger
see Correct sitting position . . . . . . . 11, 12, 13
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Physical principles of a frontal collision . . . . . . 21
Plastic parts: Cleaning . . . . . . . . . . . . . . . 200, 202
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Power Management . . . . . . . . . . . . . . . . . . . . . 187
Power socket . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Preheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Pressure (tyres) . . . . . . . . . . . . . . . . . . . . . . . . . 223
R Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Radio display: cleaning . . . . . . . . . . . . . . . . . . 202
Radio transmitters . . . . . . . . . . . . . . . . . . . . . . 230
Rain sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Control of function . . . . . . . . . . . . . . . . . . . 120
Rear lid automatic locking . . . . . . . . . . . . . . . . . . . . . 99
Central locking system . . . . . . . . . . . . . . . . . 98
Manual release in an emergency . . . . . . . . 99
Rear lights Changing a bulb . . . . . . . . . . . . . . . . . . . . . 252
Rear vision mirror . . . . . . . . . . . . . . . . . . . . . . . 122
Rear vision mirrors Adjusting the exterior mirrors . . . . . . . . . . 122
see also Rear vision mirrors . . . . . . . . . . . . 123
Reflective vests . . . . . . . . . . . . . . . . . . . . . . . . . 232
Remote control See "Keys" . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Remote control key
Unlocking/Locking . . . . . . . . . . . . . . . . . . . . 91
Remove the wheel cover . . . . . . . . . . . . . . . . . 236
Removing the head restraint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Replacement parts . . . . . . . . . . . . . . . . . . . . . . 230
Reservoir capacity Windscreen washer water reservoir . . . . . 122
Reset button (trip recorder) . . . . . . . . . . . . . . . . 67
Reset the trip recorder to zero . . . . . . . . . . . . . . 67
Retrofitting a towing bracket . . . . . . . . . . . . . . 196
Rev counter . . . . . . . . . . . . . . . . . . . . . . . . . . 61, 66
Reverse gear (automatic gearbox) . . . . . . . . . 154
Rims Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
RME (fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Roll-back function Panoramic sliding sunroof . . . . . . . . . . . . . 104
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Roof carrier (roof load) . . . . . . . . . . . . . . . . . . . 131
Running in New brake pads . . . . . . . . . . . . . . . . . . . . . 185
New engine . . . . . . . . . . . . . . . . . . . . . . . . . 190
New tyres . . . . . . . . . . . . . . . . . . . . . . . . . . 223
S Safe driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safelock see Anti-theft security system . . . . . . . . . . . 86
283
Index