Audi A4 Cabriolet 2003 User Manual

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Repair Manual
Audi 100 1991 ➤ , Audi 80 1992 ➤ ,
Audi A1 2011 ➤ , Audi A2 2001 ➤ ,
Audi A3 1997 ➤ , Audi A3 2004 ➤ ,
Audi A4 1995 ➤ , Audi A4 2001 ➤ ,
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Audi Q5 2008 ➤ , Audi Q7 2007 ➤ ,
Audi R8 2007 ➤ , Audi TT 1999 ➤ ,
Audi TT 2007 ➤
Refrigerant R134a Servicing
Edition 01.2011
Service
Service Department. Technical Information

Audi A4 Cabriolet 2003 Specifications

General

Brand	Audi
Model	A4 Cabriolet 2003
Category	Air Conditioner
Language	English

Summary

00 – General, Technical Data

1 General Information

Foundational knowledge about A/C systems, refrigerants, and oils.

1.1.4 Handling Refrigerant

Crucial safety guidelines for handling refrigerant R134a.

1.1.7 Safety Precautions

General safety measures for A/C system maintenance.

1.2 Laws and Regulations

Legal and environmental regulations concerning refrigerants.

1.4 Refrigerant Circuit and Components

Details the refrigerant circuit, its parts, and necessary precautions.

1.4.1 Refrigerant Circuit Precautions

Safety and handling guidelines for the refrigerant circuit.

1.4.13 Refrigerant Circuit Flushing With Refrigerant R134a

Step-by-step guide for flushing the R134a refrigerant circuit.

2 Description and Operation

2.1 Refrigerant Circuit

Explains the function and components of the refrigerant circuit.

2.1.1 A/C Compressor

Describes the A/C compressor's role and types.

2.1.13 Refrigerant Circuit with Expansion Valve, Pressures and Temperatures

Detailed pressure and temperature data for expansion valve systems.

2.2 Switches and Sensors on Refrigerant Circuit and Connections

Identifies and explains the function of circuit switches and sensors.

2.2.4 A/C Pressure/Temperature Sensor -G395-

Information on the pressure/temperature sensor's function.

2.4 A/C Service Station

Operation and usage guidelines for A/C service stations.

2.4.3 Charging Refrigerant Circuit

Procedures for correctly charging the refrigerant circuit.

2.4.11 Evacuating Refrigerant Circuit

Steps for evacuating the refrigerant circuit to create a vacuum.

3 Specifications

3.2 Refrigerant R134a Capacities

Lists refrigerant capacities for various Audi models.

3.2.1 Capacities, Audi A1 (8X_) from MY 11

Specific refrigerant quantities for Audi A1 (8X_) from MY 11.

3.2.3 Capacities, Audi A3 (8L_) 1997 through MY 2004 and Audi TT (8N_), from MY 1999

Refrigerant capacities for Audi A3 (8L_) and TT (8N_) models.

3.2.9 Capacities, Audi A4 (8K_) from MY 2008, Audi A5 Coupe (8T_) from MY 2008, Audi Q5 (8R_) from MY 2008 and Audi A5 Cabriolet (8F_) from MY 2009

Refrigerant capacities for Audi A4, A5, Q5, and A5 Cabriolet models.

3.4 Refrigerant Oil Capacities

Required quantities of refrigerant oil for various models.

3.4.1 Capacities, Audi A1 (8X_) from MY 11

Specific refrigerant oil quantities for Audi A1 (8X_) from MY 11.

3.4.3 Capacities, Audi A3 (8L_) 1997 through MY 2004 and Audi TT (8N_), from MY 1999

Oil capacities for Audi A3 (8L_) and TT (8N_) models.

3.4.9 Capacities, Audi A4 (8K_) from MY 2008, Audi A5 Coupe (8T_) from MY 2008, Audi Q5 (8R_) from MY 2008 and Audi A5 Cabriolet (8F_) from MY 2009

Oil capacities for Audi A4, A5, Q5, and A5 Cabriolet models.

4 Diagnosis and Testing

4.1 Pressure Gauge, Tests and Measurements

Procedures for using pressure gauges in diagnostics.

4.2 Leak Detection

Methods for identifying leaks in the A/C system.

4.2.2 Refrigerant Circuit, Tracing Leaks Using Electronic Leak Detector V.A.G 1796

Using an electronic detector to locate refrigerant leaks.

4.4 Pressures, Checking

Steps to check refrigerant circuit pressures under various conditions.

4.4.1 Checking Pressure with Service Station

Performing pressure checks using an A/C service station.

4.4.2 Test Prerequisites

Essential checks before performing pressure tests.

4.4.4 Checking Pressures For Vehicles With Restrictor and Accumulator - Internally Regulated Compressor

Pressure checks for specific compressor types.

4.4.5 Specified Values For Vehicles With Restrictor and Accumulator - Internally Regulated Compressor

Reference pressure values for specific compressor types.

5 Removal and Installation

5.1 Leaking or Damaged Components Except A/C Compressor, Accumulator or Receiver - Circuit Empty of Refrigerant

Procedures for components with leaks in an empty circuit.

5.3 Compressor, Replacing Without Flushing Refrigerant Circuit

Replacing the compressor without circuit flushing.

5.4 Compressor, Replacing Due to Leakage Or Internal Damage

Replacing compressor due to external or internal damage.

6 Special Tools

6.1 Commercially Available Tools and Materials

List of tools and materials for A/C system service.

Leak Detector V.A.G 1796

Details on the V.A.G 1796 electronic leak detector.

Adapter Set For Refrigerant Circuit R134a V.A.G 1785/1-10

Adapter set for R134a circuit connections.

Leak detection system VAS 6201 comprising

Components of the VAS 6201 leak detection system.

Cautions & Warnings

Please read these WARNINGS and CAUTIONS before proceeding with maintenance and repair work. You must answer that you have read and you understand these WARNINGS and CAUTIONS before you will be allowed to view this information.

Mandatory safety warnings and cautions before starting work.