Audi A4 Owners & Service Manuals

Audi A4: 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 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

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 Transmission, Removing

Special tools and workshop equipment required Hose Clamps - Up To 25 mm -3094- Torque Wrench 1332 Insert - Ring Wrench - 16mm -VAG1332/14- Engine and Gearbox Jack -VAS6931- Torque Wrench Adapter -VAS6948- Gearbox Support -T40173- Wrench - 21mm -T40263- Adapter -T40314- Tensioning Strap -T10

 Balance Shaft

Overview - Balance Shaft 1 - Cylinder Block 2 - Bolt Tightening specifications. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.13; Balance Shaft; Overview - Balance Shaft. 3 - Intake Side Balance Shaft Removing and installing. Re

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