wheel alignment SKODA ROOMSTER 2013 1.G Owner's Manual

Wheels
Tyres and wheel rims
Introduction
This chapter contains information on the following subjects:
Service life of tyres
173
New tyres
174
Unidirectional tyres
175
Tyre pressure monitor
175
Spare wheel
176
Full wheel trim
177
Wheel bolts
177
Hubcaps
177
Wheel bolts
178WARNING■ The national legal regulations must be observed for the use of tyres.■Observe the national legal regulations relating to the use of snow chains
and the maximum vehicle speed with snow chains.WARNINGThe following instructions for the use of tyres must be observed.■For the first 500 km, new tyres do not yet provide optimum grip, and appro-
priate care should therefore be taken when driving – risk of accident!■
Only use radial tyres of the same type, size (rolling circumference) and tread
pattern on all four wheels.
■
For reasons of driving safety, do not replace tyres individually.
■
Never exceed the maximum permissible load bearing capacity for fitted
tyres – risk of accident!
■
Never exceed the maximum permissible speed for fitted tyres – risk of acci-
dent!
WARNING (Continued)■ Incorrect wheel alignment at the front or rear impairs handling – risk of acci-
dent!■
Unusual vibrations or pulling of the vehicle to one side could be a sign of
tyre damage. If there is any doubt that a wheel is damaged, immediately re-
duce your speed and stop! If no external damage is evident, drive slowly and
carefully to the nearest specialist garage to have the vehicle checked.
■
Only use tyres or wheel rims that have been approved by ŠKODA for your
model of vehicle. Failure to observe this instruction may impair the road safety
of your vehicle – risk of accident!
WARNINGObserve the following information regarding tyre damage and wear.■Never use tyres if you do not know anything about the condition and age.■
Never drive with damaged tyres – risk of accident!
■
Immediately replace damaged wheel rims or tyres.
■
You must have your tyres replaced with new ones at the latest when the
wear indicators have been worn down.
■
Worn tyres impair necessary adhesion to the road surface, particularly at
high speeds on wet roads. This could lead to “aquaplaning” (uncontrolled ve- hicle movement – “swimming” on a wet road surface).
WARNINGObserve the following information regarding the tyre inflation pressure.■The tyre control display does not absolve the driver of the responsibility to
ensure the correct tyre inflation pressure. Check the tyre inflation pressure at
regular intervals.■
Insufficient or excessive inflation pressure impairs handling – risk of acci-
dent!
■
If the inflation pressure is too low, the tyre will have to overcome a higher
rolling resistance. This will cause a significant increase in the temperature of
the tyre, especially at higher speeds. This can result in tread separation and a
tyre blowout. 
172General Maintenance

Always check the inflation pressure when the tyres are cold. Do not reduce the
higher pressure of warm tyres.
With greater additional load, adjust the tyre inflation pressure accordingly.
Driving style
Fast cornering, sharp acceleration and braking increase the wear of your tyres.
Balancing wheels
The wheels of a new vehicle are balanced. When driving, however, there are a
range of factors that may result in an imbalance. This may become apparent by
“vibration” in the steering.
Have the wheels rebalanced after replacing the tyres.
Wheel alignment errors
Incorrect wheel alignment at the front or rear leads to excess wear of the tyres.
Tyre damage
Drive over kerbs and other such obstacles slowly and at right angles wherever
possible in order to avoid damage to tyres and wheel trims.
We recommend checking your tyres and wheel rims for damage (punctures, cuts,
splits and bulges, etc.) on a regular basis. Remove foreign bodies (e.g. small
stones) from the tyre tread immediately.
Replacing wheels
If significantly greater wear is present on the front tyres, we recommend swap-
ping the front wheels with the rear wheels as shown in the diagram » Fig. 136.
You will then obtain approximately the same life for all the tyres.
We recommend that you swap the tyres every 10,000 km in order to achieve evenwear on all tyres and to ensure optimal service life for the tyres.
Storing tyres
Identify disassembled tyres so that the previous direction of rotation can be
maintained if the tyres are reassembled.
Always store wheels or tyres in a cool, dry place that is as dark as possible. Tyres
which are not fixed to a wheel trim should be stored upright.
Wear indicators
The base of the tread of the tyres has 1.6 mm high wear indicators installed.
These wear indicators are arranged evenly spaced around the circumference of the tyre a number of times depending on the make » Fig. 135 - 
. Markings on the
walls of the tyres through the letters “TWI”, triangular symbols or other symbols identify the position of the wear indicators.Tyre age
Tyres age and lose their original characteristics, even if they are not being used.
Therefore, we recommend not using summer or winter tyres older than 6 or 4 years old respectively.
New tyres
First read and observe the introductory information and safety warn-
ings
on page 172.
Only use radial tyres of the same type, size (rolling circumference) and tread pat-
tern on one axle on all four wheels.
The tyre/wheel combinations which are approved for your vehicle are indicated in
your vehicle documents.
Where possible, replace tyres by axle. Always fit the tyres with the deeper tread
depth to the front wheels.
Explanation of tyre markings
185/65 R 14 86 T
What this means is:
185Tyre width in mm » Fig. 135 on page 173 - 65Height/width ratio in % » Fig. 135 on page 173 - RCode letter for the tyre construction – Radial » Fig. 135 on page 173
- 14Diameter of wheel in inches » Fig. 135 on page 173 - 86Load index » TSpeed symbol »
The date of manufacture is stated on the tyre wall (possibly on the inside). e.g.
DOT ... 10 13...
means, for example, that the tyre was manufactured in the 10th week of 2013.
Load index
This indicates the maximum permissible load for each individual tyre. 487 kg
515 kg
530 kg 
838586174General Maintenance