Volkswagen Caddy 2004 User Manual

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Workshop Manual
Amarok 2011 ➤ , Beetle 2012 ➤ ,
Bora 1999 ➤ , CC 2010 ➤ , CC 2012 ➤ ,
Caddy 1997 ➤ , Caddy 2004 ➤ ,
Caddy 2011 ➤ ,
Caddy Kasten/Kombi 1996 ➤ ,
Caddy Pickup 1997 ➤ ,
California 2004 ➤ , California 2010 ➤ ,
Caravelle 2004 ➤ , Caravelle 2010 ➤ ,
Crafter 2006 ➤ , Eos 2006 ➤ ,
Fox 2005 ➤ , Golf 1992 ➤ , Golf 1998 ➤ ,
Golf 2004 ➤ , Golf 2009 ➤ ,
Golf 2013 ➤ , Golf Cabriolet 2012 ➤ ,
Golf Plus 2005 ➤ , Golf Plus 2009 ➤ ,
Golf Sportsvan 2015 ➤ ,
Golf Variant 1998 ➤ ,
Golf Variant 2007 ➤ ,
Golf Variant 2010 ➤ ,
Golf Variant 2014 ➤ , Jetta 2005 ➤ ,
Jetta 2011 ➤ , LT 1997 ➤ ,
Lupo 1999 ➤ , Lupo 3L 1999 ➤ ,
Multivan 2004 ➤ , Multivan 2010 ➤ ,
New Beetle 1999 ➤ ,
New Beetle Cabrio 2003 ➤ ,
Passat 1994 ➤ , Passat 1997 ➤ ,
Passat 2006 ➤ , Passat 2011 ➤ ,
Passat 2015 ➤ ,
Passat (NMS - US) 2012 ➤ ,
Passat CC 2009 ➤ ,
Passat Variant 1997 ➤ ,
Passat Variant 2011 ➤ ,
Service
Service Department. Technical Information

Volkswagen Caddy 2004 Specifications

General

Brand	Volkswagen
Model	Caddy 2004
Category	Automobile
Language	English

Summary

00 Technical Data

1 General Notes on Air Conditioning Systems

1.1 Refrigerant R134a Properties and Basics

Details R134a characteristics, physical data, environmental impact, and basic principles.

1.2 System Operation, Comfort, and How it Works

Explains system operation, comfort factors, and environmental context.

1.3 General Safety and Working Procedures

Covers critical safety measures and basic procedures for refrigerant circuit work.

2 General Information on Refrigerant Circuit

2.1 Refrigerant Circuit Components

Lists and describes the key parts of the refrigerant circuit.

2.2 Refrigerant Circuit Designs and Valves

Illustrates circuit designs and details evacuation/charging valves.

2.4 Switches, Senders, and Electrical Components

Covers pressure switches, senders, and related electrical components affecting the AC system.

2.6 Refrigerant Circuit Pressures and Temperatures

Provides normal operating pressure and temperature values for the refrigerant circuit.

2.9 Testing with Pressure Gauge

Explains how to use pressure gauges for system testing and measurement.

2.10 Air Conditioner Service Equipment

Covers the types of equipment used for AC system servicing.

3 Statutory Texts and Instructions

3.1 Statutes and Regulations

Lists relevant EU and German regulations concerning climate protection and chemicals.

3.2 Recycling and Refuse Law

Details legal requirements for recycling and disposal of refrigerants and oils.

3.3 Converting R12 to R134a Circuits

Explains the process for retrofitting older R12 systems to R134a.

3.4 Maintaining Records on Refrigerant

Outlines the requirement for keeping records of refrigerant usage.

4 Refrigerant Circuit

4.1 Important Repair Notes

Lists critical considerations and warnings before performing AC repairs.

4.2 Retrofitting R12 to R134a

Details the procedure for converting R12 systems to R134a.

5 Working with the Air Conditioner Service Station

5.1 Important Notes for Service Station Use

Provides essential guidelines and warnings for operating AC service stations.

5.2 Connecting Service Station for Measurement

Explains how to connect the service station for diagnostic purposes.

5.3 Draining Refrigerant Circuit

Details the process for safely draining the refrigerant circuit.

5.4 Evacuating Refrigerant Circuit

Describes the procedure for evacuating moisture and air from the circuit.

5.5 Charging Refrigerant Circuit

Explains the correct method for charging refrigerant into the system.

5.6 System Service After Charging

Outlines steps for putting the AC system back into operation after service.

6 Detecting Leaks in Refrigerant Circuit

6.1 Leak Detection with Compressed Air or Nitrogen

Details leak detection methods using pressurized gases.

6.2 Searching for Leaks with V.A.G 1796 Leak Detector

Explains the use of a specific electronic leak detector.

6.3 Detecting Leaks with VAS 6196/6201 Systems

Describes using advanced leak detection systems.

7 Clearing Refrigerant Circuit of Contaminants

7.1 Blowing Through Circuit with Air and Nitrogen

Details using compressed air and nitrogen for circuit cleaning.

7.2 Purging Circuit with Refrigerant R134a

Explains the process of purging the circuit using R134a refrigerant.

8 Complaints

8.1 Possible Complaints about Refrigerant Circuit

Details potential problems related to the refrigerant circuit's performance.

8.2 Smells from Heater and Air Conditioner Unit

Addresses unusual smells originating from the HVAC system.

9 Connecting Air Conditioner Service Station

9.1 For Vehicles with Dual-Side Connections

Explains connection procedures for systems with dual-side access.

10 Checking Pressures on Vehicles

10.1 Checking Pressures in Refrigerant Circuit

Explains how to check refrigerant pressures using service station equipment.

10.2 Checking Systems with Restrictor and Collector (Internal Regulation)

Details checking procedures for systems with restrictors and internal regulation.

10.3 Checking Systems with Expansion Valve and Reservoir (Internal Regulation)

Outlines checks for systems with expansion valves and internal regulation.

10.4 Checking Systems with Expansion Valve and Reservoir (External Regulation)

Details checks for systems with expansion valves and external regulation.

10.5 Checking Systems with Restrictor and External Compressor Regulation

Covers checks for systems with restrictors and externally regulated compressors.

10.6 Checking Systems with Expansion Valve, Receiver and External Compressor Regulation

Details checks for systems with expansion valves and externally regulated compressors.

10.7 With Expansion Valve, Receiver and Electrical Compressor

Explains checking procedures for systems with expansion valves and electrical compressors.

11 Renewing Components

11.1 Leaking or Damaged Components

Covers replacement of components other than the compressor, receiver, or reservoir.

11.2 Renewing Air Conditioner Compressor

Details the process for replacing the air conditioner compressor.

11.3 Renewing Receiver, Reservoir, and Restrictor

Covers replacement of receiver, reservoir, and restrictor components.

12 Testing Equipment and Tools

12.1 List of Test Equipment, Tools, and Materials

Provides an overview of necessary equipment for refrigerant circuit repairs.

12.1.1 Tools and Materials from Distribution Centre

Lists specialized tools and materials available through official channels.

12.1.2 Commercially Available Tools and Materials

Lists commonly available tools and materials for AC work.

12.1.3 Tools to be Made Locally

Describes tools that can be fabricated for specific tasks.