gearbox Seat Leon 5D 2012 Owner's Guide

189
Intelligent technology
Information recorded in the control units
Your vehicle is fitted at the factory with a series of electronic control units
responsible for the engine and gearbox management. In addition, the con-
trol units supervise the correct performance of the exhaust gas system and
the airbag systems.
Therefore, while the vehicle is being driven, these electronic control units
are continuously analysing the vehicle data. In the event of faults or devia-
tions from the theoretical values, only this data is stored. Generally, the in-
strument panel warning lamps indicate whether there are any malfunctions.
This data can only be read and analysed using special equipment.
The storing of the data allows specialised workshops to detect and repair
faults. Stored data may include:
● Important data about the engine and gearbox
● Speed
● Direction of travel
● Braking force
● Seat belt check
The vehicle control units never record conversations held by passengers in
the vehicle.
If the control unit records an accident with airbag activation, the system
may automatically send a signal. This will depend on the network operator.
Normally, transmission is only possible in areas with sufficient coverage.
Event Data Recorder
The vehicle is not fitted with an event data recorder.
An event data recorder temporarily stores the vehicle information. There-
fore, in the event of accident, it is possible to obtain detailed information
about how the accident occurred. For example, in vehicles with airbag sys-
tems, data relating to speed of impact, seat belt status, seat positions and airbag activation times may be stored. The volume of data depends on the
manufacturer.
Event data recorders can only be mounted with authorisation from the vehi-
cle owner and, in some countries, they are governed by local legislation.
Reprogramming control units
On the whole, all the data required for the component management is stor-
ed in the control units. The programming of certain convenience functions,
such as the turn signal convenience mode, individual door opening and dis-
play indications can be modified using special equipment at the workshop.
If the convenience functions are reprogrammed, the Instruction Manual in-
formation and descriptions will not coincide with the modified functions.
Therefore, SEAT recommends that any changes are recorded in the “Other
workshop notes section” of the Service Plan.
You can find out about possible reprogramming at your SEAT Official Serv-
ice.
Event recorder
In the footwell on the driver side you will find the diagnostics connection
socket for reading the event recorder. The event recorder stores operating
data and data on the status of the electronic control units. The events re-
corder should only be read and deleted by a SEAT Official Service or special-
ised workshop.
WARNING
The diagnostics connection socket must not be used for private purpo-
ses. Improper use can cause malfunctions: risk of accident!

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191
Driving and the environment
Never drive until the tank is empty; an irregular supply of fuel can cause
faulty combustion. In these cases, unburned fuel reaches the exhaust sys-
tem, which can overheat and damage the catalytic converter.
Diesel particulate filter
Applies to vehicles with diesel engine: The diesel particulate filter can filter
out almost all soot particles contained in the exhaust gas. In normal driving
conditions the filter is self-cleaning. The Diesel particulate filter is cleaned
automatically without need for indication by the warning lamp . This may
be noticed because the engine idle speed increases and an odour may be
detected.
If automatic filter purification cannot be carried out (because only short
trips are taken, for example), soot will accumulate on the filter and the Die-
sel particulate filter warning lamp will  switch on.
Facilitate the automatic filter cleaning process by driving in the following
manner: Drive for approximately 15 minutes at a minimum speed of 60 km/
h (40 mph) in 4th or 5th gear (automatic gearbox: gear S). Maintain the en-
gine speed at approx. 2000 rpm. The rise in temperature causes the soot on
the filter to burn. On completion of the cleaning the warning lamp will
switch off. If the warning lamp does switch off, go immediately to a special-
ised workshop to rectify the problem.
WARNING
● Because of the high temperatures which can occur in the exhaust gas
control system (catalytic converter or diesel particulate filter), do not
park the vehicle where the exhaust can come into contact with flamma-
ble materials under the car (e.g. on grass or at the forest edge). Fire haz-
ard!
● Do not apply wax underneath the vehicle around the area of the ex-
haust system: Fire hazard!
 Economic and ecological driving
Fuel consumption, environmental pollution and wear to the engine, brakes
and tyres depends largely on driving style. Fuel consumption can be re-
duced by 10-15% with an economical driving style and proper anticipation
of traffic conditions. The following section gives you some tips on lessening
the impact on the environment and reducing your operating costs at the
same time.
Foresight when driving
Acceleration causes the vehicle to consume more fuel. If you think ahead
when driving, you will need to brake less and thus accelerate less. Wherever
possible, let the car roll slowly to a stop, with a
gear engaged (for instance
when you can see that the next traffic lights are red). This takes advantage
of the engine braking effect, reducing wear on the brakes and tyres. Emis-
sions and fuel consumption will drop to zero due to the overrun fuel cut-off.
Changing gear to save energy
An effective way of saving is to change in advance to a higher gear. Running
the engine at high rpm in the lower gears uses an unnecessary amount of
fuel.
Manual gearbox : shift up from first to second gear as soon as possible. In
any case, we recommend that you change to a higher gear upon reaching
2000 rpm or so. Choosing the right gear enables fuel savings. Select the
highest possible gear appropriate for the driving situation (the engine
should continue functioning with cyclical regularity).
Automatic gearbox : accelerate gradually and without reaching the “kick-
down” position.
Avoid driving at high speed
Avoid travelling at top speed, whenever possible. Fuel consumption, emis-
sion of harmful gases and noise pollution multiply disproportionately as
speed is increased. Driving at moderate speeds will help to save fuel. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

209
Checking and refilling levels
Note
Diesel vehicles are fitted with a protective device that prevents the insertion
of the wrong fuel hose 1)
. It is only possible to refuel with Diesel nozzles.
● If the pump nozzle is worn, damaged, or if it is very small, it is possible
that it will not be able to open the protective device. Before trying to insert
the pump nozzle by turning it, try a different pump or request specialist
help.
● If you fill the tank from a reserve fuel canister, the protective device will
not open. One way to resolve this is to pour the fuel in very slowly. 
Bonnet
Working on components in the engine compartment
Extra caution is necessary when working on components in
the engine compartment. Always be aware of the danger of injury and scalding as well as the risk of
accident or even fire when working in the engine compartment (e.g. when
checking and refilling fluids). Always observe the warnings listed below
and follow all general safety precautions. The engine compartment of the
vehicle is a potentially hazardous area ⇒ 
.
WARNING
● Switch the ignition off.
● Remove the ignition key.
WARNING (Continued)
● Apply the handbrake.
● If the vehicle has a manual gearbox, place the lever in neutral; if it
has an automatic gearbox, place the selector lever in position P.
● Wait for the engine to cool down.
● Keep children away from the engine compartment.
● Never spill liquids used for vehicle operation on the engine compart-
ment, as these may catch fire (e.g. the antifreeze in coolant).
● Take care not to cause short circuits in the electrical system, especial-
ly when working on the battery.
● If working inside the engine compartment, remember that, even when
the ignition is switched off, the radiator fan may start up automatically,
and therefore there is a risk of injury.
● Do not unscrew the cap on the coolant expansion tank when the en-
gine is hot. The cooling system is under pressure.
● Protect face, hands and arms by covering the cap with a large, thick
rag to protect against escaping coolant and steam.
● If it is necessary to work in the engine compartment while the engine
is running, the rotating components (for example, poly-V belt, alternator,
radiator fan) and the high voltage ignition system are an additional haz-
ard.
● Observe the following additional warnings if work on the fuel system
or the electrical system is necessary:
–Always disconnect the battery from the on-board network.
– Do not smoke.
– Never work near naked flames.
– Always keep an approved fire extinguisher immediately available. 
1)
according to the country
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233
Emergencies
Tyre repair kit
What to do first
– Please observe the important safety notes ⇒ page 232.
– Apply the handbrake.
– Manual gearbox: Select first gear.
– Automatic gearbox: Move the selector lever to P.
– Check whether a repair is possible using the tyre repair kit
⇒ page 233. 
Using the tyre repair kit
Fig. 117 Tyre: irrepara-
ble damage The tyre repair kit is designed to repair your tyre provisionally only. The dam-
aged tyre should be replaced as soon as possible
⇒ 
.
If the tyre has been damaged by a nail, for example, remove the nail from
the tyre.
The tyre repair kit can be used at outside temperatures of up to -20 °C
(-4 °F).
The tyre repair kit must NOT be used:
● on cuts and punctures larger than 4 mm 1
⇒ Fig. 117
● If the wheel rim has been damaged 2
●
if you have been driving with very low pressure or a completely flat tyre
3.
If necessary, request assistance from specialised personnel.
WARNING
● Remember that the tyre repair kit cannot always be used, and that it
only serves to provide a provisional repair.
● Do not allow the sealing product to come into contact with your eyes,
skin or clothing.
● If you do come into contact with the sealing product immediately
rinse the eyes or skin affected with clean water.
● Do not inhale vapours.
● If any of the sealing product is accidentally ingested, immediately
rinse the mouth thoroughly and drink lots of water. Do not induce vomit-
ing. Seek medical advice immediately.
● Change clothing immediately if it becomes soiled with the sealing
product.
● If any allergic reactions should occur get medical help immediately.
● Keep the sealing product away from children. 
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235
Emergencies
Note
Do not use the compressor for longer than 6 minutes at a time, as it could
overheat. Once it has cooled down, the compressor may be used again. 
After changing a wheel
– Attach the "max. 80 km/h (50 mph)" adhesive label from the
tyre repair kit on the instrument panel, clearly within view of the
driver.
– Stop the vehicle after 10 minutes driving and check the tyre
pressure.
– If tyre pressure is less than 1.3 bar, the tyre is too badly dam-
aged. Do not carry on driving!
WARNING
After repairing a tyre please note the following points:
● Do not drive faster than 80 km/h (50 mph).
● Avoid heavy acceleration, hard braking and fast cornering.
● Vehicle handling could be impaired.
● If the tyre is very damaged, seek professional assistance.
For the sake of the environment
You can dispose of the used bottle of sealing compound at a SEAT Official
Service.
Note
After repairing a tyre, remember to purchase a new bottle of sealing com-
pound from a SEAT Official Service or a specialised workshop. 
Changing a wheel What to do first
Before changing the wheel, the following preliminary steps
are required. – Please observe the important safety notes ⇒ page 232.
– Apply the handbrake.
– Manual gearbox: Select first gear.
– Automatic gearbox: Move the selector lever to P.
– When towing a trailer: Unhitch the trailer from your vehicle.
– Have the vehicle tool kit ⇒ page 232 and the spare wheel ready
⇒ page 240.
WARNING
If you change the wheel on a slope, block the wheel on the opposite side
of the car with a stone or similar to prevent the vehicle from moving.

Safety FirstOperating instructionsPractical TipsTechnical specifications

244Emergencies
Towing and tow-starting the vehicle
General information
Points to observe when tow-starting or towing away If you use a tow rope:
Notes for the driver of the towing vehicle
– The tow rope must be taut before you drive off.
– Release the clutch very carefully when starting the vehicle
(manual gearbox), or accelerate gently (automatic gearbox).
Notes for the driver of the towed vehicle
– The ignition should be switched on so that the turn signals,
horn, windscreen wipers and washers can be used. Please en-
sure that the steering wheel is unlocked when you switch on the
ignition, and that it moves freely.
– Put the gearbox lever in neutral (manual gearbox) or move the
selector lever to position N (automatic gearbox).
– The brake servo only works when the engine is running. Consid-
erably more effort is required on the brake pedal when the en-
gine is switched off.
– Remember that the brake servo only works when the ignition is
switched on and the vehicle is moving 1)
. Otherwise, considera-
bly more strength than usual will be required when steering. –
Ensure that the tow rope remains taut at all times.
Tow rope or tow bar
It is easier and safer to tow a vehicle with a tow bar. You should only use a
tow rope if you do not have a tow bar.
A tow rope should be slightly elastic to avoid damage to both vehicles. It is
advisable to use a tow rope made of synthetic fibre or similarly elastic mate-
rial.
Only attach the tow rope or the tow bar to the towing rings ⇒ page 245.
Driving style
Towing requires some experience, especially when using a tow rope. Both
drivers should be familiar with the technique required for towing. Inexper-
ienced drivers should not attempt to tow.
Do not pull too hard with the towing vehicle and take care to avoid jerking
the tow rope. When towing on an unpaved road, there is always a risk of
overloading and damaging the anchorage points.
WARNING
If the vehicle has no electrical power, the brake lights, turn signals and
all other lights will no longer function. Do not have the vehicle towed
away. Failure to do so could result in an accident.
CAUTION
If there is no oil in the gearbox or no lubricant in the automatic transmission
the car may only be towed with the driven wheels lifted clear of the road, or
transported on a special car transporter or trailer. 
1)
Important: the battery must be correctly charged.

247
Emergencies
Tow-starting
As a general rule, tow-starting is not recommended.
– Engage 2nd or 3rd gear before moving off.
– Press the clutch and hold the pedal down.
– Switch the ignition on.
– Once both vehicles are moving, release the clutch.
– As soon as the engine starts: press the clutch and put the gear
lever in neutral.
If the engine will not start, it is best to try starting it using the battery of an-
other vehicle ⇒ page 241 before attempting to tow start. You should only try
to tow-start the engine if jump starting is not successful. Tow-starting is an
attempt to start the engine via the movement of the wheels.
When tow-starting a vehicle with a petrol engine, do not tow it more than a
short distance, otherwise sunburnt fuel can enter the catalytic converter and
cause damage.
WARNING
The risk of accidents is high when tow-starting, as the towed vehicle can
easily be driven into the towing vehicle.
CAUTION
Do not tow vehicles for more than 50 m. Risk of damage to the catalytic con-
verter. Towing vehicles with a manual gearbox
Towing is relatively straightforward.
Please observe the relevant instructions ⇒ page 244.
The vehicle can be towed using a tow bar or tow rope in the normal way,
with all four wheels on the road; it can also be towed with either the front or
rear wheels lifted off the road. The maximum towing speed is 50 km/h (30
mph). 
Towing a vehicle equipped with automatic gearbox
Certain restrictions must be observed when towing your ve-
hicle. Please observe the relevant instructions ⇒ page 244.
The vehicle can be towed with a tow bar or tow rope in the normal way, with
all four wheels on the ground. When doing so, please note the following
points:
● Make sure the selector lever is in the N position.
● The vehicle must not be towed faster than 50 km/h (30 mph).
● The vehicle must not be towed further than 50 km (30 miles). Reason:
when the engine is not running, the gearbox oil pump does not work and
the gearbox is not adequately lubricated for higher speeds or longer distan-
ces.
If the vehicle has to be towed with a breakdown truck, it must only be sus-
pended at the front wheels. Reason: the drive shafts are located on the front
wheels. If the car is towed with the rear wheels lifted off the road (I.e. travel-
ling backwards), the drive shafts also turn backwards. The planetary gears
in the automatic gearbox then turn at such high speeds that the gearbox
will be severely damaged in a short time. 
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

264Technical specifications
Vehicle identification data
Fig. 151 Vehicle data
sticker (luggage compart-
ment)
Chassis number in the Easy Connect
– Select: Function button CAR
> control button
(Car)* Systems >
Service & Control > Chassis number .
Chassis number
The chassis number is located in the Easy Connect, on the vehicle data
sticker and under the windscreen, on the driver side. Additionally, the chas-
sis number is located in the engine compartment, on the right-hand side.
The number is engraved on the top side rail, and is partially covered.
Type plate
The type plate is located on the right side door pillar. Vehicles for certain
export countries do not have a type plate. Vehicle data sticker
The vehicle data sticker is under the carpet trim in the luggage compart-
ment, in the spare wheel well. A sticker with the vehicle data is attached to
the inside cover of the Maintenance Programme.
The following information is provided on the vehicle data sticker:
⇒ Fig. 151
Production control number
Vehicle identification number (chassis number)
Model code number
Model designation/engine power output
Engine and gearbox code letters
Paintwork number/interior trim code
Optional equipment codes
Consumption values
CO 2 emissions values
At the end of the data sticker, in points 8
and 9, you can see the con-
sumption and emission information.
Identifying letters
The identifying letters of the engine can be viewed on the instrument panel.
Important: The engine must be off and the ignition on.
● Hold down the 0.0/SET

4 ⇒ Fig. 36 button for more than 15 seconds.
Information on consumption and emissions Urban consumption (l/100 km)
Urban CO 2 emissions (g/km)
Extra-urban consumption (l/100 km)
Extra-urban CO 2 emissions (g/km)
Combined consumption (l/100 km)
Combined CO 2 emissions (g/km)

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A
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