Volkswagen Golf Service & Repair Manual: Air conditioning system with refrigerant R134a
- General notes on air conditioning systems
- Introduction
- Additional information
- Basics of air conditioning
- Refrigerant R134a
- Characteristics of refrigerant R134a
- Refrigerant machine oil
- Comfort
- General safety
- Basics for working on refrigerant circuit
- General information on refrigerant circuit
- Refrigerant circuit components
- Design of refrigerant circuit
- Evacuation and charging valves for quick-release couplings of air conditioner service station on refrigerant circuit
- Switch and sender in refrigerant circuit and related connections
- Electrical components not installed in refrigerant circuit
- Test and measurement work that can be performed using a pressure gauge
- Air conditioner service and recycling equipment
- Statutory texts and instructions
- Statutes and regulations
- Recycling and refuse law
- Converting R12 refrigerant circuits to R134a refrigerant circuits and repairing them (retrofitting)
- Maintaining records on refrigerant
- Refrigerant circuit
- Important repair notes on air conditioning
- Retrofitting refrigerant circuit from R12 refrigerant to R134a refrigerant
- Working with the air conditioner service station
- Important notes for working with the air conditioner service station
- Connecting air conditioner service station for measuring and checking
- Draining refrigerant circuit using air conditioner service station
- Evacuating refrigerant circuit using air conditioner service station
- Charging refrigerant circuit using air conditioner service station
- Bringing air conditioning system into service after charging
- Charging container in air conditioner service station with refrigerant
- Draining air conditioner service station
- Detecting leaks in refrigerant circuit
- Leak detection in refrigerant circuit using compressed air or nitrogen
- Searching for leaks in refrigerant circuits using leak detector -V.A.G 1796
- Detecting leaks in refrigerant circuit using leak detecting system -VAS 6196- or leak detecting system -VAS 6201- or a later model
- Clearing refrigerant circuit of contaminants
- Blowing through refrigerant circuit with compressed air and nitrogen
- Purging (cleaning) refrigerant circuit with refrigerant R134a
- Complaints
- Connecting air conditioner service station
- Checking pressures on vehicles
- Checking pressures in refrigerant circuit (using air conditioner service station)
- Checking systems with a restrictor and collector (with internally regulated air conditioner compressor)
- Checking systems with an expansion valve and reservoir (with internally regulated air conditioner compressor)
- Checking systems with an expansion valve and reservoir (without regulated air conditioner compressor)
- Checking systems with a restrictor and reservoir and air conditioner compressor regulating valve -N280- (with externally regulated air conditioner compressor)
- Checking systems with an expansion valve, receiver and air conditioner compressor regulating valve -N280- (with externally regulated air conditioner compressor)
- Renewing components
- In the event of leaking or damaged components (apart from the air conditioner compressor, receiver or reservoir)
- Renewing air conditioner compressor
- Renewing receiver or reservoir, and restrictor
- Testing equipment and tools
Functional description of remote control for auxiliary and supplementary
heater
Note
The auxiliary and supplementary heater can be switched on
and off from a distance of several 100 metres (open space) using
the remote c ...
Other materials:
Vibration control system
Using the vibration control system -VAS 6230 A- you can
perform more functions than just stationary balancing.
A special feature of this system is the testing of the
radial force of the wheel and tyre while rolling.
A ro ...
Removing and installing Tiptronic switch in steering wheel -E439-/-E438-
Special tools and workshop equipment
required
Torque wrench -V.A.G 1783-
Removing
Note
Removal and installation are described for the left sid ...
Removing and installing fuel tank, vehicles with multi-link rear suspension
and fuel tank leakage diagnosis function
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
Removal wedge -3409-
...