2012 Seat Leon 5D bulb

Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Retrofitting a towing bracket* . . . . . . . . . . . . . . . 196
Care and cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 198
General information . . . . . . . . . . . . . . . . . . . . . . . 198
Care of vehicle exterior . . . . . . . . . . . . . . . . . . . . . 198
Care of the vehicle interior . . . . . . . . . . . . . . . . . . 202
Checking and refilling levels . . . . . . . . . . . . . . . 206
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Windscreen washer reservoir and wiper blades . 220
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Accessories and modifications to the vehicle 230
Accessories, replacement parts and repairs . . . . 230
Technical modifications . . . . . . . . . . . . . . . . . . . . 230
Radio transmitters and business equipment . . . 230
Emergencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
General information . . . . . . . . . . . . . . . . . . . . . . . 232
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Tyre repair kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . 235
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Jump starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Towing and tow-starting the vehicle . . . . . . . . . . 244
Fuses and bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Electrical fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Changing bulbs in headlight unit . . . . . . . . . . . . 254
Changing bulb for front fog light . . . . . . . . . . . . . 256
Changing tail light bulbs (on side panel) . . . . . . 257 Changing tail light bulbs (on rear lid) . . . . . . . . . 259
Changing number plate light bulbs . . . . . . . . . . . 261
Technical specifications . . . . . . . . . . . . 263
Technical specifications . . . . . . . . . . . . . . . . . . . . 263
Important . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Vehicle identification data . . . . . . . . . . . . . . . . . . 264
Information on fuel consumption . . . . . . . . . . . . 265
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Engine specifications . . . . . . . . . . . . . . . . . . . . . . 267
Dimensions and capacities . . . . . . . . . . . . . . . . . 276
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
4Table of Contents

106Lights and visibility
Lights and visibility
Lights Introduction
The legal requirements regarding the use of vehicle lights in each country
must be observed.
The driver is personally responsible for the correct use and adjustment of
the lights in all situations.
Additional information and warnings:
● Information system ⇒ page 73
● Changing bulbs ⇒ page 252
WARNING
If the headlights are regulated too high and the main beam is not used
correctly, there is a risk of dazzling or distracting other road users. This
could result in a serious accident.
● Always make sure that the headlights are correctly adjusted.
● Never use the main beam or headlight flasher when it can dazzle oth-
er drivers.
 Control lamps
lights upPossible causeSolution
Driving light totally or partially
faulty.
Replace the corresponding
bulb ⇒ page 252.
If all the bulbs are OK, the vehi-
cle should be taken to a speci-
alised workshop if necessary.
Rear fog light switched on.⇒ page 108.
Fog lights switched on
 
Left or right turn signal.
The control lamp flashes twice
as fast when a vehicle or trailer
turn signal is faulty.If necessary, check the vehicle
and trailer lighting.
Main beam on or flasher on.⇒ page 107.
Light Assist on.⇒ page 109.
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.


113
Lights and visibility
When a car that is manufactured in a country that drives on the right travels
to a country that drives on the left (or vice versa), it is normally necessary to
cover part of the headlight bulbs with stickers or to change the adjustment
of the headlights to avoid dazzling other drivers.
In such cases, the regulations specify certain light values that must be com-
plied with for designated points of the light distribution. This is known as
“Tourist light”.
The light distribution that the halogen and full-LED headlights of the SEAT
Leon range have, allows the specific “tourist light” values to be met without
the need for stickers or changes in the settings.
Note
“Tourist light” is only allowed temporarily. If you are planning a long stay in
a country that drives on the other side, you should take the vehicle to an
Authorised Technical Service to change the headlights. 
“Coming home” and “Leaving home” function (guidance
lights)*
The “Coming home” function should be switched on manually. However the
“Leaving home” function is automatically controlled by a photo sensor.
“Coming home”Necessary operations
To switch sys-
tem on:
– Switch off the ignition.
– Briefly flash the headlights for approximately one sec-
ond ⇒ page 107.
The “Coming home” lighting comes on when the driver
door is opened. The delay in switching off the headlights
is counted from when the last door or rear lid is closed.
The system
switches off:
– Automatically at the end of the delay period.
– Automatically, if 30 seconds after coming on, a vehicle
door or the rear lid remains open.
– If the light switch is turned to position .
– If the ignition is switched on.
“Leaving home”Necessary operationsTo switch sys-
tem on:– Unlock the vehicle when the light switch is in position
 and the photo sensor detects darkness.
The system
switches off:– Automatically, at the end of the delay period.
– When the vehicle is locked.
– When the light switch is turned to position .
– When the ignition is switched on.
Note
● In the Easy Connect system, the duration of the lighting can be adjus-
ted, and the function activated and deactivated ⇒ page 79 using the button 
and the function button Setup.
● When the “Coming home” function is activated, a tone can be heard
when the driver door is opened to warn that the light remains switched on. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

249
Fuses and bulbs
Fuses and bulbs Electrical fuses
Changing fuses
A blown fuse can be identified by the blown metal strip.
Fig. 131 Steering col-
umn area: cover
Fig. 132 Engine com-
partment, left-hand side:
fuse cover
Fuses in the steering column area
– Switch off the ignition and component concerned.
– Look in the tables below for the right fuse for the component
⇒ page 250.
– Remove the cover ⇒ Fig. 131.
– Remove the plastic clips from the fuse cover.
– Use the plastic clip to pull out the fuse and replace the blown
fuse with a fuse of the same rating.
Fuses in engine compartment
– Switch off the ignition and component concerned.
– Look in the tables below for the right fuse for the component
⇒ page 251. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

250Fuses and bulbs
–Unlock the fuse cover ⇒ Fig. 132.
– Remove the clips from the fuse cover.
– Use the plastic clip to pull out the fuse and replace the blown
fuse with a fuse of the same rating.
The individual electrical circuits are protected by fuses. Fuses are located
under a cover below the steering wheel on the left side of the engine com-
partment.
WARNING
Do not repair fuses, and never replace a blown fuse with a higher amper-
age fuse. The electrical system could be damaged, with risk of fire.
CAUTION
● Multiple fuse values on the same line (for example, 5/10/20) in the fol-
lowing tables indicate equipment-related differences. Replace the blown
fuse with a fuse of the same amperage.
● If a newly replaced fuse blows again after a short time, the electrical sys-
tem must be checked by a specialised workshop as soon as possible.
Note
● Positions are not occupied by a fuse do not appear in the following ta-
bles.
● Some of the equipment listed in the tables below pertain only to certain
versions of the model or are an optional extra. Fuses in the vehicle interior
No.Electrical consumerAmpsF2Vacant-F4Alarm10F5Gateway5F6Anti-theft alarm system5
F7Air conditioner/heating control panel, selector
lever (automatic gearbox), relay coil, rear win-
dow heating, additional heating10
F8Diagnosis, handbrake switch, light switch, re-
verse light, interior lighting10
F9Vacant-F10Radio display10F11Vacant-F12Radio20F13Vacant-F14Air conditioner fan40F15Vacant-F16Vacant-F17Instrument panel5F18Vacant-F19Vacant-F20Vacant-F23Right lights40F24Sunroof30F25Left door30F26Heated seats30F27Vacant-F28Vacant-


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

252Fuses and bulbs
No.Electrical consumerAmpsF24PTC40F31Vacant-F32Vacant-F37Vacant-
Note
Please note that the above list, while correct at the time of printing, is sub-
ject to alterations. 
Bulbs
Changing a bulb
Changing bulbs requires a certain degree of practical skill. If you choose to change engine compartment lamps yourself, remember
that it is a dangerous area ⇒ 
in Working on components in the engine
compartment on page 209.
Always use identical bulbs with the same designation. The name can be
found on the base of the bulb holder.
Depending on how equipped the vehicle is, there are different sets of head-
lights and tail lights:
● Halogen headlights
● Full-LED main headlights*
● Rear bulb light
● LED rear light* Full-LED headlight system*
Full-LED headlights handle all light functions (daylight, side light, turn sig-
nal, dipped beam and route light) with light emitting diodes (LEDs) as a
light source.
Full-LED headlights are designed to last the lifetime of the car and light
bulbs cannot be replaced. In case of headlight failure, go to an authorised
workshop to have it replaced.
Bulbs (12 V)
Halogen headlightsTypeDaytime driving light/side lightP21W SLLDipped beam headlightsH7 LLMain beam headlightsH7 LLTurn signalPY21W LL
Full-LED main headlightsTypeNo bulbs may be replaced. All functions are
with LEDs
Front fog lightTypeFog light/cornering*H8
Rear bulb lightTypeBrake lights/tail lightsP21W LLSide lights2x W5W LLTurn signalPY21W LLRear fog lightH21WReverse lightsP21W LL
LED rear lightTypeTurn signalPY21W LLRear fog lightH21W


253
Fuses and bulbs
LED rear lightTypeReverse lightsP21W LLThe remaining functions work with LEDs
WARNING
● Take particular care when working on components in the engine com-
partment if the engine is warm. Risk of burns.
● Bulbs are highly sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
● When changing bulbs, please take care not to injure yourself on sharp
edges, in particular on the headlight housing.
CAUTION
● Remove the ignition key before working on the electric system. Other-
wise, a short circuit could occur.
● Switch off the lights or parking lights before you change a bulb.
● Take good care to avoid damaging any components.
For the sake of the environment
Please ask your specialist retailer how to dispose of used bulbs in the prop-
er manner.
Note
● Please check at regular intervals that all lighting (especially the exterior
lighting) on your vehicle is functioning properly. This is not only in the inter-
est of your own safety, but also that of all other road users.
● Before changing a bulb, make sure you have the correct new bulb.
● Do not touch the glass part of the bulb with your bare hands, use a cloth
or paper towel instead. Otherwise, the fingerprints left on the glass will va-
porise as a result of the heat generated by the bulb, they will be deposited
on the reflector and will impair its surface. 
Safety FirstOperating instructionsPractical TipsTechnical specifications