Volkswagen Lupo 3L 1999 User Manual

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Service
Service Department. Technical Information

Volkswagen Lupo 3L 1999 Specifications

General

Brand	Volkswagen
Model	Lupo 3L 1999
Category	Automobile
Language	English

Summary

00 - Technical Data

1 General Notes on Air Conditioning Systems

Provides general information and safety guidelines for air conditioning systems.

2 General Information on Refrigerant Circuit

Refrigerant Circuit Components

Electrical Air Conditioner Compressor for High-Voltage System

Specifics for electrical AC compressors in high-voltage vehicle systems.

Evacuation and Charging Valves

Pressures and Temperatures in the Refrigerant Circuit

Test and Measurement Work Using a Pressure Gauge

Instructions on how to use pressure gauges for testing and measurement.

Air Conditioner Service and Recycling Equipment

Working with the Air Conditioner Service Station

Important Notes for Working with the Air Conditioner Service Station

Essential guidelines for operating and using AC service stations.

Draining Refrigerant Circuit using Air Conditioner Service Station

Evacuating Refrigerant Circuit using Air Conditioner Service Station

Charging Refrigerant Circuit using Air Conditioner Service Station

Detecting Leaks in Refrigerant Circuit

Leak Detection Using Compressed Air or Nitrogen

Method for detecting leaks using compressed air or nitrogen.

Searching for Leaks Using Leak Detector - V.A.G 1796-

Procedure for using a specific leak detector tool.

Detecting Leaks Using Leak Detecting System - VAS 6196- or Later Model

Procedure for using leak detection systems like VAS 6196.

Clearing Refrigerant Circuit of Contaminants

Blowing Through Refrigerant Circuit with Compressed Air and Nitrogen

Purging (Cleaning) Refrigerant Circuit with Refrigerant R134a

Procedure for cleaning the refrigerant circuit using R134a refrigerant.

Checking Pressures on Vehicles

Checking Pressures in Refrigerant Circuit (Using Air Conditioner Service Station)

Procedure for checking refrigerant pressures using a service station.

Checking Systems with a Restrictor and Collector (Internally Regulated Compressor)

Checking AC systems with restrictor and collector (internally regulated).

Checking Systems with Expansion Valve and Reservoir (Internally Regulated Compressor)

Checking AC systems with expansion valve and reservoir (internally regulated).

Checking Systems with Expansion Valve and Reservoir (Without Regulated Compressor)

Checking AC systems with expansion valve and reservoir (externally regulated).

Checking Systems with Restrictor, Reservoir, and Regulating Valve (Externally Regulated Compressor)

Checking systems with restrictor, reservoir, and N280 valve.

Checking Systems with Expansion Valve, Receiver, and Electrical AC Compressor

Checking AC systems with expansion valve, receiver, and electrical compressor.

Renewing Components

In the Event of Leaking or Damaged Components

Procedure for replacing components other than compressor or receiver.

Renewing Air Conditioner Compressor

Steps for replacing the air conditioner compressor.

Renewing Receiver or Reservoir, and Restrictor

Procedure for replacing receiver, reservoir, and restrictor.