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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General Information
Indicators on pressure gauge
1 - Temperature scale for refrigerant R134a CF3-CH2F or
CH2F-CF3.
2 - Pressure scale
Note
Pressure is measured in different units: 1 MPa (145 psi)
corresponds to 10 bar (145 psi) positive pressure. 1 bar (14.5
psi) absol
Applies to vehicles: with Audi adaptive cruise control
Fig. 122 Selector lever: changing the speed
To increase or reduce the speed in increments,
tap the lever up or down.
To increase or reduce the speed quickly, hold
the lever up or down until the red LED A reaches
the desired speed > fig
