Introduction
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 c
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
Note
Depending on vehicle equipment, there are different versions
of the A/C system for the Audi Q7. Make sure to use the correct
version and pay attention to the allocation of different
components. Refer to
→ Chapter "A/C System Versions" and Parts Catalog.
Perform only on vehicl
Special tools and workshop equipment
required
Torque Wrench 1332 40-200Nm -VAG1332-
Wheel Lock Set -T10101-
Wheel Lock Set -T10101A-
Wheel Lock Set -T40004-
Wheel Lock Set -T40073-
Wax Spray -D 322 000 A2-
Optimol TA Paste -G 052 109 A2-
Note
The wrench size of the included wheel b