Audi Q5: A/C System, General Information
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The purpose of this repair manual is to provide service
advisors and technicians with the basic knowledge needed to
ensure professional and competent procedures.
Note
Only the careful study
Physical Principles
The four known states of water also apply to air
conditioning system refrigerants.
1 - Gaseous (invisible)
2 - Vapor
3 - Liquid
4 - Solid
Refrigerant R134a Physical Data
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as ref
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Applies to vehicles: with decorative wheel covers
The decorative wheel covers must be removed
first to access the wheel bolts.
Fig. 216 Changing a wheel: Removing the wheel cove
Removing
Insert the hook provided with the vehicle tool
kit in the hole in the hub.
Pull off the decorative wheel cov
Note
Cleaning the refrigerant circuit means flushing with
refrigerant R134a. Refer to
→ Chapter "Refrigerant Circuit, Cleaning (Flushing), with
Refrigerant R134a".
If a faulty A/C compressor is replaced with an A/C
compressor from another manufacturer check for the A/C
compres
