Volkswagen Golf Service & Repair Manual: Swellings in the tyre sidewall
| A swelling in the sidewall of the tyre indicates that the
substructure of the carcass has been damaged. |
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| Typical causes for such damage include, for example, driving
over kerbs at a sharp angle. |
| Pinching the tyre in this way can damage the carcass. |
| The substructure of the tyre is stretched so far that
individual fibres in the carcass may be broken. |
| The extent of the damage depends on the speed of impact, the
angle of impact, the tyre pressure, the axle load and the type
of obstacle. |
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| Pinch marks on tyre sidewall -arrows- |
 Note
| Driving over kerbs should be avoided. |
| If you cannot avoid driving over a kerb, you should do so
very slowly and as square-on as possible. |
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| Interior view of a tyre with a punctured carcass |
| Due to a severe impact, the carcass was pinched on the wheel
rim flange and is ruptured in the contact area. |
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| Damage inside tyre due to impact injury (double rupture) |
| Double rupture -arrows- caused
by pinching when a kerb was driven over. Often not detectable
from outside. |
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| Cut caused by a sharp-edged obstacle
-arrow- |
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This type of flat spots may be caused by hard braking on a
rough surface such as a tarmac road.
During this type of braking manoeuv ...
Driving over hard, pointed objects like nails, screws and
the like can pierce the tyre.
This always leads to tyre damage.
...
Other materials:
Removing and installing mirror adjustment unit
Special tools and workshop equipment
required
Torque wrench -V.A.G 1783-
Note
The removal and installat ...
Brake support systems
First read and observe the introductory information
and safety warnings The brake support systems ESC, ABS, BAS, TCS and EDL
only function when the engine is running. They make a considerable contribution
to active driving safety.
Electronic stability control (ESC)
The ESC helps to reduc ...
Locking and unlocking the vehicle from the outside
Fig. 27 Buttons on the vehicle key
Fig. 28 Vehicle key with alarm button
First read and observe the introductory information
and safety warnings
Function
Buttons to be used on the vehicle key or
Unlocking the vehicle.
Press the b ...
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Flat spots caused by hard braking
Damage caused by foreign bodies