First read and observe the introductory
information and safety warnings
Introduction
ChecklistVolkswagen Touran Service Manual. Tires, Dismounting
Remove the valve insert.
Note
If equipped handle the glued-on wheel trim carefully.
Surface slightly scratched.
Replace the damaged rim wheel trim.
...
Volkswagen Touran Service Manual. Refrigerant Oil
Refrigerant oil mixes with the refrigerant (about 20 - 40%,
depending on compressor type and amount of refrigerant) and
circulates constantly in the system, lubricating the moving
parts.
Special synthetic refrigerant oils, for example,
...