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
General Description
Using the signal from the Camshaft Position Sensor -G40-,
the precise position of the camshaft relative to the crankshaft
is determined very quickly when the engine is started. Used in
combination with the signal from the Engine Speed Sensor -G28-,
the signal from the Camshaf
Component Location Overview - Front Heater and A/C Unit Components,
"Low" or "Mid" A/C System
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
compone