service Seat Leon 5D 2012 Workshop Manual

228Wheels and tyres
–Also note that winter tyres are no longer effective when the
tread is worn down.
– After fitting the wheels you must always check the tyre pres-
sures. The correct tyre pressures are listed on the sticker on the
inside of the fuel tank flap ⇒ page 223.
In winter road conditions winter tyres will considerably improve vehicle han-
dling. The design of summer tyres (width, rubber compound, tread pattern)
gives less grip on ice and snow. This applies particularly to vehicles equip-
ped with wide section tyres or high speed tyres (code letters H, V or Y on
the sidewall).
Only use winter tyres of the correct type approved for your vehicle. The sizes
of the winter tyres approved for your vehicle are listed in the vehicle docu-
mentation (e.g. EC Certificate of Conformity or COC document 1)
). The vehi-
cle documentation varies depending on the country of residence. See also
⇒ page 226.
Winter tyres lose a great deal of their properties when the tread is worn
down to a depth of 4 mm.
The performance of winter tyres is also severely impaired by ageing, even if
the tread is still much deeper than 4 mm.
Winter tyres are subject to the following maximum speed limits according to
speed rating code letter: ⇒ 
Speed rating code
letter ⇒ page 226Maximum speed limit
Q160 km/h (140 mph)S180 km/h (140 mph)T190 km/h (140 mph)
Speed rating code
letter ⇒ page 226Maximum speed limit
H210 km/h (140 mph)V240 km/h (150 mph)
(note restrictions)
Vehicles capable of exceeding these speeds must have an appropriate
sticker attached so that it is visible to the driver. Suitable stickers are availa-
ble from the SEAT Official Service and specialised workshop. Please note
regulations to this effect in your country.
“All-weather” tyres can also be used instead of winter tyres.
Using winter tyres with V-rating
Please note that the generally applicable 240 km/h (150 mph) speed rating
for winter tyres with the letter V is subject to technical restrictions; the max-
imum permissible speed for your vehicle may be significantly lower . The
maximum speed limit for tyres with a V-rating depends directly on the maxi-
mum axle weights for your car and on the listed weight rating of the tyres
being used.
It is best to contact a SEAT Official Service to check the maximum speed
which is permissible for the V-rated tyres fitted on your car on the basis of
this information.
WARNING
Exceeding the maximum speed permitted for the winter tyres fitted on
your car can cause tyre failure, resulting in a loss of control of the vehicle
– risk of accident. 
1)
COC = certificate of conformity

230Accessories and modifications to the vehicle
Accessories and modifications to the vehicle
Accessories, replacement parts and repairs
Always ask your dealer or specialist retailer for advice be-
fore purchasing accessories and replacement parts.
Your vehicle is designed to offer a high standard of active and passive safe-
ty. For this reason, we recommend that you ask a SEAT Official Service for
advice before fitting accessories or replacement parts. Your SEAT Official
Service has the latest information from the manufacturer and can recom-
mend accessories and replacement parts which are suitable for your re-
quirements. They can also answer any questions you might have regarding
official regulations.
We recommend you to use only SEAT accessories and Genuine SEAT parts ®
.
SEAT has tested these parts and accessories for suitability, reliability and
safety. SEAT Official Services have the necessary experience and facilities to
ensure that the parts are installed correctly and professionally.
Any retro-fitted equipment which has a direct effect on the vehicle and/or
the way it is driven (e.g. cruise control system or electronically-controlled
suspension) must be approved for use in your vehicle and bear the e mark
(the European Union's authorisation symbol).
If any additional electrical components are fitted which do not serve to con-
trol the vehicle itself (for instance a refrigerator box, laptop or ventilator fan,
etc.), these must bear the  mark (manufacturer conformity declaration in
the European Union).
WARNING
Accessories, for example telephone holders or cup holders, should never
be fitted on the covers, or within the working range of the airbags. Other-
wise, there is a danger of injury if the airbag is triggered in an accident.
 Technical modifications
Modifications must always be carried out according to our
specifications.
Unauthorised modifications to the electronic components, software, wiring
or data transfer in the vehicle may cause malfunctioning. Due to the way the
electronic components are linked together in networks, other indirect sys-
tems may be affected by the faults. This can seriously impair safety, lead to
excessive wear of components, and also invalidate your vehicle registration
documents.
You will appreciate that your SEAT dealership cannot be held liable for any
damage caused by modifications and/or work performed incorrectly.
We recommend that all work should be performed by a SEAT Official Service
using Genuine SEAT parts
®
.
WARNING
Incorrectly performed modifications or other work on your vehicle can
lead to malfunctions and cause accidents.

Radio transmitters and business equipment
Radio transmitters (fixed installation)
Any retrofit installations of radio transmitters in the vehicle require prior ap-
proval. SEAT generally authorises in-vehicle installations of approved types
of radio transmitters provided that: 

231
Accessories and modifications to the vehicle
● the aerial is installed correctly.
● the aerial is installed on the exterior of the vehicle (and shielded cables
are used together with non-reflective aerial trimming).
● the effective transmitting power does not exceed 10 Watts at the aerial
base.
A SEAT Official Service and specialised workshop will be able to inform you
about options for installing and operating radio transmitters with a higher
transmitting power.
Mobile radio transmitters
Commercial mobile telephones or radio equipment might interfere with the
electronics of your vehicle and cause malfunctions. This may be due to:
● no external aerial
● external aerial incorrectly installed
● transmitting power more than 10 W
You must, therefore, do not operate portable mobile telephones or radio
equipment inside the vehicle without a properly installed external aerial
⇒ 
.
Please note also that the maximum range of the equipment can only be ach-
ieved with an external aerial.
Business equipment
Retrofit installation of business or private equipment in the vehicle is per-
mitted, provided the equipment cannot interfere with the driver's immedi-
ate control of the vehicle and that any such equipment carries the  mark.
Any retrofit equipment that could influence the driver's control of the vehi-
cle must have a type approval for your vehicle and must carry the e mark.
WARNING
Mobile telephones or radio equipment which is operated inside the vehi-
cle without a properly installed external aerial can create excessive mag-
netic fields that could cause a health hazard.
Note
● The posterior fitting of electric and electronic equipment in this vehicle
affects its licence type and could lead to the withdrawal of the vehicle regis-
tration document under certain circumstances.
● Please use the mobile telephone/radio operating instructions. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

234Emergencies
Note
● If sealing product should leak out, leave it to dry. This way you can pull it
off like a piece of foil.
● Observe the expiry date stated on the sealing compound can. Have the
sealing compound changed by a specialised workshop or SEAT Service.
● Please observe legal requirements when doing so. 
Repairing tyres
Fig. 118 Tyre: top up
Important: have the tyre repair kit ready ⇒ 
page 232.
Filling the tyre
– Before filling the tyre, shake the bottle of sealing product thor-
oughly.
– Screw the enclosed filling hose onto the sealant can as far as it
will go. This will pierce the foil sealing on the can. –
Take the valve cap off the tyre valve and use a screwdriver
⇒ Fig. 118 to unscrew the valve insert.
– Place the valve insert onto a clean surface.
– Remove the sealing plug from the filling hose and insert the
hose into the tyre valve.
– Hold the bottle upside down and insert the contents in the tyre
until the bottle is empty.
– Then disconnect the hose and screw the valve insert back onto
the tyre valve.
Inflating the tyre
– Screw the compressor filling hose (tyre repair kit) onto the tyre
valve and plug the connector into the 12V connection.
– Pump the tyre up to 2.0 to 2.5 bar and monitor the pressure
shown on the pressure gauge.
– If the tyre does not reach this pressure, move the car forwards
or backwards 10 metres to allow the sealing compound to
spread all around the tyre.WARNING
● Please observe the manufacturer's safety notes on the compressor
and the instructions supplied with the tyre sealant can.
● If, after six minutes of trying to inflate the tyre, it is not possible get
up to a pressure of 2.0 bar, this indicates that the tyre is too severely
damaged for repair with the kit. Do not carry on driving!
● If the tyre cannot be repaired with the sealing compound, seek pro-
fessional assistance. 

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

237
Emergencies
Anti-theft wheel bolts
Fig. 121 Anti-theft
wheel bolt with cap and
adapter
A special adapter (vehicle tools) is required to remove the anti-
theft wheel bolts.
– Remove the wheel cover* or the cap*.
– Insert the adapter onto the anti-theft wheel bolt and push it on
as far as it will go.
– Insert the wheel brace (vehicle tools) onto the adapter as far as
it will go.
– Remove the wheel bolt ⇒ page 237.
Note
Make a note of the code number of the anti-theft wheel bolt and keep it in a
safe place, but not in your vehicle. If you need a new adapter, you can ob-
tain it from the SEAT Official Service, indicating the code number. 
Loosening the wheel bolts
Fig. 122 Wheel: loosen
the wheel bolts
– Insert the wheel brace (vehicle tools) onto the wheel bolt as far
as it will go 1)
.
– Turn the wheel bolt approximately one turn to the left ⇒ 
Fig. 122
-arrow-. To apply the required torque, hold the wheel brace at
the end. If it is not possible to loosen a wheel bolt, carefully ap-
ply pressure with one foot on the end of the wheel brace. Hold
on to the car for support and take care not to slip. 
1)
An adapter is required to unscrew or tighten the anti-theft wheel bolts ⇒ page 237.
Safety FirstOperating instructionsPractical TipsTechnical specifications

240Emergencies
To benefit from the advantages of tyres with this type of tread pattern, the
defective tyre should be replaced as soon as possible so that all tyres again
rotate in the correct direction. 
After changing a wheel
– On alloy wheels: replace the wheel bolt caps.
– On plate wheels: replace the wheel hubcap ⇒ page 236.
– Put the tools and jack back in the luggage compartment.
– If the replaced wheel does not fit in the spare wheel housing,
store it safely in the luggage compartment ⇒ page 17.
– Check the tyre pressure of the newly mounted tyre as soon as
possible.
– In vehicles fitted with a tyre pressure indicator, adjust the pres-
sure and store the reading in the radio/Easy Connect system*
⇒ page 175.
– The wheel bolts should be tightened to 120 Nm. Check the tor-
que as soon as possible with a torque wrench. Meanwhile, drive
carefully.
– Have the flat tyre replaced as quickly as possible. Spare wheel
General information
Fig. 125 Compact tem-
porary spare wheel:
raised floor panel
The temporary spare wheel has been designed to be used for short
periods of time. Have the tyres checked, and if necessary, replaced
as soon as possible at a SEAT Official Service or at a specialised
workshop.
Please note the following restrictions when using the compact tem-
porary spare wheel. The compact temporary spare wheel is de-
signed specifically for this model. For this reason, do not use a
temporary spare wheel from a different type of vehicle.
Removing the temporary spare wheel
– Lift and hold up the floor panel to remove the temporary spare
wheel ⇒ Fig. 125.
– Turn the thumb wheel anti-clockwise. 

256Fuses and bulbs
Changing bulb for front fog light
Front fog light bulb
Fig. 140 Front fog light
Fig. 141 Front fog light –
Remove the bolt ⇒ Fig. 140 A
from the fog light grille with a
screwdriver.
– Remove the bolts (3x) ⇒ Fig. 141 B
to remove the fog light.
– Remove the fog light.
Note
Due to the difficulty of accessing fog light bulbs, have them replaced at a
Technical Service or specialised workshop. 
Fog light, FR version
Due to the difficulty of accessing fog light bulbs, have them replaced at a
Technical Service or specialised workshop. 

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)

1
23456789
A
B
C

266Technical specifications
Drawbar loads
The maximum permitted drawbar load on the ball joint of the towing bracket
must not exceed 80 kg.
In the interest of road safety, we recommend that you always tow approach-
ing the maximum drawbar load. The response of the trailer on the road will
be poor if the drawbar load is too small.
If the maximum permissible drawbar load cannot be met (e.g. with small,
empty and light-weight single axle trailers or tandem axle trailers with a
wheelbase of less than 1 metre), a minimum of 4% of the actual trailer
weight is legally required for the drawbar load.
WARNING
● For safety reasons, do not exceed the 80 km/h (50 mph) limit. This is
also valid in countries where higher speeds are permitted.
● Never exceed the maximum trailer weights or the drawbar load. If the
permissible axle load or the permissible total weight is exceeded, the
driving characteristics of the vehicle may change, leading to accidents,
injuries and damage to the vehicle.

Wheels
Tyre pressure, snow chains, wheel bolts
Tyre pressures
The sticker with the tyre pressure values can be found on the inside of the
fuel tank flap. The tyre pressure values given there are for cold tyres. The
slightly raised pressures of warm tyres must not be reduced. ⇒ 
Snow chains
Snow chains may be fitted only to the front wheels, and only for the follow-
ing tyres:
175/70R14
185/60R15Chains with links not exceeding 15 mm (including the chain
closure)
215/45R16Chains with links not exceeding 9 mm (including the chain
closure)
215/40R17Chains with links not exceeding 7 mm (including the chain
closure)
Wheel bolts
After the wheels have been changed, the tightening torque of the wheel
bolts should be checked as soon as possible with a torque wrench ⇒ 
.
The tightening torque for steel and alloy wheels is 120 Nm.
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.
● If the tightening torque of the wheel bolts is too low, they could loos-
en while the vehicle is in motion. Risk of accident! If the tightening tor-
que is too high, the wheel bolts and threads can be damaged.
Note
We recommend that you ask your Technical Service for information about
appropriate wheel, tyre and snow chain size. 