Volkswagen Golf Service & Repair Manual: Damage caused by foreign bodies
| Driving over hard, pointed objects like nails, screws and
the like can pierce the tyre. |
| This always leads to tyre damage. |
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| Damage due to embedded foreign body |
| Often, the object -marking- is
so securely embedded in the tyre that it will not free itself
even at higher speeds. Consequently, it can act as a plug and
seal the tyre relatively well. This results in a gradual loss of
pressure, which the driver will not notice immediately, but
which can lead to sudden and complete tyre failure. |
 Note
| No repair should be attempted on a steel-belted tyre of
which the structure has been punctured by a foreign body. |
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A swelling in the sidewall of the tyre indicates that the
substructure of the carcass has been damaged.
Typic ...
Tyres with stripped profile
Such damage usually develops over a longer period of time.
If an already damaged tyre is exposed to high stress, the
...
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Swellings in the tyre sidewall
Stripped profile