Audi A6 Typ 4G: A/C System, General Information
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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
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Wheel Bearing Housing Bonded Rubber Bushing, Replacing, FWD Vehicles
Special tools and workshop equipment
required
Press Plate -VW401-
Press Plate -VW402-
Press Piece - Rod -VW408A-
Press Piece - Rod -VW411-
Shop Press -VAG1290A-
Bearing Installer - Wheel Bearing Bushing -T40184-
Removing
-
Note
On vehicles with a high-voltage system but without a heat
pump (for example on Audi A3 e-tron, Audi Q5 hybrid, Audi A6
hybrid and Audi A8 hybrid) no check valves are installed in the
refrigerant circuit. On these vehicles valves are installed in
the refrigerant circuit which regulat
