Audi A4: A/C System, General Information
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / A/C System, General Information
- Introduction
- A/C Technology Basic Principles
- Refrigerant R134a
- Refrigerant R134a Characteristics
- Refrigerant Oil
- A/C System Operation
- General Safety Precautions
- A/C System and Refrigerant R134a Safety Precautions
- Refrigerant Circuit, General Precautions
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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 careful study
A/C Technology Basic Principles
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
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
SEE MORE:
DSG Transmission Mechatronic -J743-
Overview - Mechatronic
1 - Transmission Fluid Pan
Removing and installing. Refer to
→ Chapter "Transmission Fluid Pan, Removing and Installing".
2 - Bolt
Tightening specification and sequence. Refer to
→ Fig. "Transmission Fluid Pan - Tightening Specificat
Selector Lever Handle, Removing and Installing
Note
Both the selector lever handle and the selector lever boot
are removed together.
Special tools and workshop equipment required
Trim Removal Wedge -3409-
Torque Wrench 1410 - VAG1410-
Removing
Ignition switched off.
- Remove the selector lever handle upper section
-1- upward
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