Audi A5 Cabriolet 2009 User Manual

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Repair Manual
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Refrigerant R134a Servicing
Edition 01.2011
Service
Service Department. Technical Information

Audi A5 Cabriolet 2009 Specifications

General

Brand	Audi
Model	A5 Cabriolet 2009
Category	Air Conditioner
Language	English

Summary

1 General Information

1.1 A/C System

Overview of the air conditioning system components and function.

1.1.4 Handling Refrigerant

Safe handling procedures for refrigerant vessels.

1.1.7 Safety Precautions

General safety guidelines for working with refrigerant systems.

1.2 Laws and Regulations

Applicable laws and regulations for refrigerant handling and A/C system maintenance.

1.3 A/C System Principles

Basic physical principles governing refrigerants in A/C systems.

1.4 Refrigerant Circuit and Components

Details on the refrigerant circuit and its various components.

2 Description and Operation

2.1 Refrigerant Circuit

Detailed description of the refrigerant circuit and its components.

2.2 Switches and Sensors on Refrigerant Circuit and Connections

Overview of switches and sensors in the refrigerant circuit.

2.4 A/C Service Station

Information and procedures for using A/C service stations.

2.3 Electrical Components Not on Refrigerant Circuit

Electrical components external to the refrigerant circuit.

3 Specifications

3.1 Charging Refrigerant

Guidelines and considerations for charging refrigerant.

3.2 Refrigerant R134a Capacities

Specific refrigerant capacities for various Audi models.

3.3 Refrigerant Oils

Information on types and handling of refrigerant oils.

3.4 Refrigerant Oil Capacities

Specific refrigerant oil quantities for various Audi models.

4 Diagnosis and Testing

4.1 Pressure Gauge, Tests and Measurements

Using pressure gauges for A/C system diagnostics.

4.2 Leak Detection

Methods for detecting leaks in the refrigerant circuit.

4.3 Refrigerant Circuit Concerns

Common problems and troubleshooting steps for refrigerant circuits.

4.4 Pressures, Checking

Procedures for checking refrigerant circuit pressures.

5 Removal and Installation

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

Procedures for removing components when the circuit is empty.

5.3 Compressor, Replacing Without Flushing Refrigerant Circuit

Steps for replacing the compressor without flushing the circuit.

5.4 Compressor, Replacing Due to Leakage Or Internal Damage

Replacing a compressor due to leaks or internal damage.

5.5 Receiver or Accumulator and Restrictor, Replacing After Cleaning Refrigerant Circuit

Replacing receiver/accumulator/restrictor after circuit cleaning.

6 Special Tools

6.1 Commercially Available Tools and Materials

Listing of commercially available tools and materials for A/C service.

6.2 Improvised Tools

Information on improvised tools for A/C system servicing.