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Removing and installing metal valve body > < Wheel electronics - exploded view

A4 Mk2

Changing a tyre
Changing a tyre
The nickel-plated valve core must always be replaced when changing a tyre.
The metal valve and the wheel electronics can be reused.
–  Release air from tyre by unscrewing nickel-plated valve core.
–  Remove tyre → Fig.
–  Perform visual inspection to check for loose or damaged components. Renew complete valve assembly if attachment points are loosened/detached.
Always renew wheel electronics if damaged.
–  Fit tyre → Fig..
–  Screw in new nickel-plated valve core.
–  Inflate tyre and screw plastic cap back on.
–  Balance tyre.
   
Removing tyre
Roll off or unseat tyre.
When using an unseating tool, first press off the tyre on the side opposite the valve.
Unseating tools must not be used in hatched area -a-.
–  Position head of installing tool close to valve so that tyre iron can be applied approx. 30° -b- away from valve.
–  Then pull off the tyre in the valve area first.
  A44-0087
Fitting tyre
Unseating tools must not be used in valve area.
–  Position wheel electronics approx. 180° opposite head of installing tool.
–  Press tyre into well base approx. 90° in front of installing tool -arrow-.
–  Fit tyre.
  A44-0088

Removing and installing metal valve body > < Wheel electronics - exploded view