Audi A7 Sportback 2011 User Manual

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

Audi A7 Sportback 2011 Specifications

General

Brand	Audi
Model	A7 Sportback 2011
Category	Automobile
Language	English

Summary

00 – General, Technical Data

1 General Information

Covers general aspects of A/C systems, including refrigerant R134a and its properties.

1.2 Laws and Regulations

Details legal and environmental regulations for refrigerants and A/C system servicing.

1.3 A/C System Principles

Explains the physical principles of air conditioning, heat transfer, and pressure-temperature relationships.

1.4 Refrigerant Circuit and Components

Describes the refrigerant circuit, its components, and necessary precautions.

2 Description and Operation

2.1 Refrigerant Circuit

Details the refrigerant circuit, including its components and operational flow.

2.2 Switches and Sensors on Refrigerant Circuit and Connections

Covers the function and connection of switches and sensors in the A/C refrigerant circuit.

2.3 Electrical Components Not on Refrigerant Circuit

Discusses electrical components relevant to the A/C system but outside the refrigerant circuit.

2.4 A/C Service Station

Provides instructions for operating and using A/C service stations for maintenance.

3 Specifications

3.1 Charging Refrigerant

Specifies procedures and guidelines for charging refrigerant into the A/C system.

3.2 Refrigerant R134a Capacities

Lists the correct refrigerant R134a capacities for various Audi models and production years.

3.3 Refrigerant Oils

Discusses the properties and types of refrigerant oils used in A/C systems.

3.4 Refrigerant Oil Capacities

Details the specific quantities of refrigerant oil required for different Audi models.

4 Diagnosis and Testing

4.1 Pressure Gauge, Tests and Measurements

Explains the use of pressure gauges for A/C system testing and measurements.

4.2 Leak Detection

Covers methods for identifying and locating leaks within the refrigerant circuit.

4.3 Refrigerant Circuit Concerns

Addresses common issues and troubleshooting steps for the refrigerant circuit.

4.4 Pressures, Checking

Provides guidance on checking refrigerant pressures and interpreting diagnostic values.

5 Removal and Installation

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

Procedure for replacing components with leaks when the circuit is empty.

5.2 Leaking or Damaged Components Except A/C Compressor, Accumulator or Receiver - Circuit Contains Refrigerant

Details procedures for replacing components with leaks when the refrigerant circuit contains refrigerant.

5.3 Compressor, Replacing Without Flushing Refrigerant Circuit

Explains how to replace the A/C compressor without flushing the refrigerant circuit.

5.4 Compressor, Replacing Due to Leakage Or Internal Damage

Outlines the process for replacing the compressor due to leaks or internal damage.

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

Replacing receiver, accumulator, and restrictor after circuit cleaning.

5.6 Receiver or Accumulator, Replacing Without Flushing Refrigerant Circuit

Procedure for replacing receiver or accumulator without flushing.

5.7 Dryer Cartridge and Dryer Bag, Replacing Without Flushing Refrigerant Circuit

Covers replacing the dryer cartridge or dryer bag without flushing the refrigerant circuit.

6 Special Tools

6.1 Commercially Available Tools and Materials

Details standard tools and materials for A/C system service.

6.2 Improvised Tools

Presents alternative or improvised tools for A/C system service.