VW Touran manuals

Volkswagen Touran Service Manual: Tread Depth, Measuring

  Note
When measuring tread depth, take measurements in the main grooves.
Do not take measurements at the tread wear indicator.
   
Tread depth of a tire must be measured in the main grooves at the points showing the most wear. The positions of the tread wear indicators are marked along the tire shoulder -item 2- → Item.
In place of "TWI", there may also be a "Δ" or "VW emblem".
The TWI protrusions are 1.6 mm tall. This is the minimum tread depth legally prescribed in Germany.
Different values may apply in other countries.
  Tread Depth, Measuring
Tread Wear Indicators (TWI) must not be included in the measurement. The deepest point of the groove must be used for the measurement.
A -  Tread Wear Indicators in main grooves
B -  Main grooves with Tread Wear Indicators -arrows-
  Tread Depth, Measuring
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