2012 Seat Leon 5D suspension

224Wheels and tyres
–The tyre pressure should only be checked when the tyres are
cold. The slightly raised pressures of warm tyres must not be re-
duced.
– Adjust tyre pressure to the load being carried by the vehicle.
– In vehicles with a tyre pressure indicator, save the pressure of
modified tyres ⇒ page 175, ⇒  page 223.
– Avoid fast cornering and hard acceleration.
– Inspect the tyres for irregular wear from time to time.
The useful life of your tyres depends on the following factors:
Tyre pressure
Tyre pressure values are indicated on the inside of the fuel tank flap.
Insufficient or excessive pressure greatly reduces the useful life of the tyres
and adversely affects vehicle performance and ride. Correct inflation pres-
sures are very important, especially at high speeds.
If you want a more comfortable ride, you can inflate tyres to the pressure
corresponding to the normal vehicle load (up to 3 people) if the vehicle is
carrying a normal load. If the vehicle is going to carry the maximum load,
the tyre pressure should be increased to maximum value indicated.
The tyre pressure must be adjusted according to the load the vehicle is car-
rying. We recommend adhering to the tyre pressure specifications for a max-
imum load.
Do not forget the spare wheel when checking the tyre pressures: Keep the
spare wheel inflated to the highest pressure required for the road wheels.
In the case of a minimised temporary spare wheel (125/70 R16 or 125/70
R18) inflate to a pressure of 4.2 bar as indicated on the tyre pressure label
on the fuel tank flap. Driving style
Fast cornering, heavy acceleration and hard braking (squealing tyres) all in-
crease tyre wear.
Wheel balance
The wheels on new vehicles are balanced. However, certain circumstances
may lead to imbalance (run-out), which is detected as vibrations in the
steering wheel.
Unbalanced wheels should be rebalanced, as they otherwise cause exces-
sive wear on steering, suspension and tyres. A wheel must also be reba-
lanced when a new tyre is fitted or if a tyre is repaired.
Incorrect wheel alignment
Incorrect wheel alignment causes excessive tyre wear, impairing the safety
of the vehicle. If you notice excessive tyre wear, you should check wheel
alignment at a SEAT Official Service.
WARNING
● Always adapt the tyre pressure accordingly when the vehicle load
changes.
● A tyre with low air pressure has to flex a lot more when the vehicle is
heavily loaded or at high speeds, therefore causing overheating to occur.
Under these conditions, the tyre bead may be released or the tyre may
burst. Risk of accident!
For the sake of the environment
Under-inflated tyres will increase fuel consumption. 

226Wheels and tyres
To ensure that the wear is equal on all tyres the wheels should be changed
round from time to time according to the system ⇒ Fig. 116. The useful life
of all the tyres will then be about the same time. 
Replacing wheels and tyres
It is important to use the correct wheels and tyres when re-
placement is necessary.
– All four wheels must be fitted with tyres of the same type, size
(rolling circumference) and preferably the same tread pattern.
– Tyres should be replaced at least in pairs and not individually
(i.e. both front tyres or both rear tyres together).
– Do not use tyres whose effective size exceeds the dimensions
of the factory-approved makes of tyre.
– If you wish to fit the vehicle with rims or tyres that are different
to those installed in manufacture, it is advisable to consult a
SEAT Official Service before purchasing them.
The tyres and wheel rims are an essential part of the vehicle's design. The
tyres and rims approved by SEAT are specially matched to the characteris-
tics of the vehicle and make a major contribution to good roadholding and
safe handling ⇒ 
.
The sizes of the rims and tyres approved for your vehicle are listed in the
vehicle documentation (e.g. EC Certificate of Conformity or COC docu-
ment 1)
). The vehicle documentation varies depending on the country of resi-
dence. A knowledge of tyre designations makes it easier to choose the correct
tyres. The following wording can be read on the sides of the tyre:
205/55 R 16 91 V
This contains the following information:
205Tyre width in mm55Height/width ratio in %RTyre construction: Radial16Rim diameter in inches91Load rating codeWSpeed index
The manufacturing date is also indicated on the tyre sidewall (possibly only
on the inner side of the wheel): DOT ... 2212 ...
means that the tyre was produced in the 22nd week of 2012.
Please note that with some types of tyre, the actual tyre size can differ from
the nominal size marked on the tyre (for instance 205/55 R 16 91 W), and
there may be significant differences in the contours of the tyres, even
though the tyres are marked with the same nominal size designation.
When replacing the tyres, it is therefore important to make sure that the
actual size of the new tyres does not exceed the dimensions of the factory-
approved makes of tyre.
Failure to observe this requirement can affect the clearance needed for the
tyres. This could result in contact between the tyres and suspension com-
ponents or bodywork causing damage. The brake lines could also be dam-
aged and vehicle safety could be severely impaired ⇒ 
.
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: 