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
Left Side Vent Motor -V299-, Removing and Installing, on "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
components. Refe
General Description
The Engine Control Module -J623- tells the Fuel Pump Control
Module -J538- the demand needed for fuel volume and pressure and
activates the Transfer Fuel Pump -G6-. The Transfer Fuel Pump
-G6- transfers fuel to the rest of the fuel system, where it is
monitored by the Engine