Volkswagen Touran Owners Manual. Sealing and inflating tyres
First read and observe the introductory information
and safety warnings Sealing a tyre
Unscrew the cap from the tyre valve.
Use the valve insert extractor   to screw the valve insert out of the tyre
valve. Place the insert on a clean surface.
Shake the tyre filler bottle †...
Volkswagen Touran Service Manual. Discharge Refrigerant Circuit with A/C Service Station
Caution
If it is suspected that chemicals were added to the
refrigerant circuit to seal leaks, do not connect the
A/C service station and do not extract the refrigerant.
...