VW Golf manuals

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.
   
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.
 

Swellings in the tyre sidewall

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.
 

Swellings in the tyre sidewall

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.
 

Swellings in the tyre sidewall

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.
 

Swellings in the tyre sidewall

Cuts
Cut caused by a sharp-edged obstacle -arrow-
 

Cuts

Flat spots caused by hard braking
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Damage caused by foreign bodies
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Other materials:

Safety precautions when using testing and measuring instruments during a road test
Please note the following points if test and measuring equipment has to be used while test driving the vehicle:   WARNING Risk of accidents due to distraction and inadequate securing of test and ...

Frequently asked questions
If you suspect that there is a fault in the vehicle or if your vehicle has been damaged, read and observe the following information before contacting a Volkswagen dealership or qualified workshop. You may also find useful information in the index under the headings Things to note or Checklist. ...

Assembly overview - D-pillar trim
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