volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Tyre pressure > < Damage caused by foreign bodies
Loss of air from tyre
Loss of air from tyre
If the customer complains of a loss of air from a tyre, it is essential that you check for embedded foreign bodies.
  Note
No repair should be attempted on a steel belted tyre of which the structure has been punctured by a foreign body.
Corrosion can develop on the steel wires. This will always lead to the separation of the rubber from the steel belt.
Generally, one cannot determine when the foreign body was embedded. The tyre structure may already have been damaged as a result of driving with insufficient tyre pressure.
Damaged belt wires will sooner or later lead to separation of the rubber from the steel belt. As a result, the tyre can fail completely at some point long after the tyre was first damaged.
Tyre damage caused by foreign bodies is not covered by the warranty.
   

Tyre pressure > < Damage caused by foreign bodies