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Passat 1994
Volkswagen Passat 1994 Manuals
Manuals and User Guides for Volkswagen Passat 1994. We have
1
Volkswagen Passat 1994 manual available for free PDF download: Workshop Manual
Volkswagen Passat 1994 Workshop Manual (180 pages)
Brand:
Volkswagen
| Category:
Automobile
| Size: 1.72 MB
Table of Contents
Table of Contents
5
Technical Data
7
1 General Notes on Air Conditioning Systems
7
Introduction
7
Additional Information
7
Basics of Air Conditioning
8
Vapour Pressure Table for Refrigerant R134A
9
Refrigerant R134A
10
Characteristics of Refrigerant R134A
11
Refrigerant Machine Oil
13
Comfort
15
How Air Conditioning Works
15
General Safety
16
Safety Precautions for When Working on Vehicles with Air Conditioning and When Handling
19
Refrigerant R134A
19
Basics for Working on Refrigerant Circuit
20
2 General Information on Refrigerant Circuit
23
Refrigerant Circuit Components
23
Design of Refrigerant Circuit
31
Evacuation and Charging Valves for Quick-Release Couplings of Air Conditioner Service Station
31
On Refrigerant Circuit
31
Switch and Sender in Refrigerant Circuit and Related Connections
33
Electrical Components Not Installed in Refrigerant Circuit
36
Pressures and Temperatures in the Refrigerant Circuit
38
Refrigerant Circuit with Expansion Valve
38
Refrigerant Circuit with Restrictor and Reservoir
40
Test and Measurement Work that Can be Performed Using a Pressure Gauge
42
Air Conditioner Service and Recycling Equipment
43
Notes to Repairs on Refrigerant Circuit
44
3 Statutory Texts and Instructions
45
Statutes and Regulations
45
Recycling and Refuse Law
50
Converting R12 Refrigerant Circuits to R134A Refrigerant Circuits and Repairing Them (Retrofitting)
51
Maintaining Records on Refrigerant
51
4 Refrigerant Circuit
52
Important Repair Notes on Air Conditioning
52
Retrofitting Refrigerant Circuit from R12 Refrigerant to R134A Refrigerant
52
5 Working with the Air Conditioner Service Station
53
Important Notes for Working with the Air Conditioner Service Station
54
Connecting Air Conditioner Service Station for Measuring and Checking
54
Draining Refrigerant Circuit Using Air Conditioner Service Station
55
Evacuating Refrigerant Circuit Using Air Conditioner Service Station
56
Charging Refrigerant Circuit Using Air Conditioner Service Station
57
Bringing Air Conditioning System into Service after Charging
58
Charging Container in Air Conditioner Service Station with Refrigerant
59
Draining Air Conditioner Service Station
59
6 Detecting Leaks in Refrigerant Circuit
61
Leak Detection in Refrigerant Circuit Using Compressed Air or Nitrogen
62
Searching for Leaks in Refrigerant Circuits Using Leak Detector V.A.G 1796
64
Detecting Leaks in Refrigerant Circuit Using Leak Detecting System VAS 6196 or Leak Detecting
65
System VAS 6201 or a Later Model
65
7 Clearing Refrigerant Circuit of Contaminants
71
Blowing through Refrigerant Circuit with Compressed Air and Nitrogen
71
Purging (Cleaning) Refrigerant Circuit with Refrigerant R134A
73
8 Complaints
128
Possible Complaints about Refrigerant Circuit
128
Smells from Heater and Air Conditioner Unit
129
9 Connecting Air Conditioner Service Station
132
For Vehicles that Have Connections on both Low-Pressure and High-Pressure Sides of
132
Refrigerant Circuit
132
10 Checking Pressures on Vehicles
133
Checking Pressures in Refrigerant Circuit (Using Air Conditioner Service Station)
133
Checking Systems with a Restrictor and Collector
136
Compressor
138
Checking Systems with an Expansion Valve and Reservoir (with Internally Regulated Air Conditioner Compressor)
141
Checking Systems with an Expansion Valve and Reservoir
147
Compressor)
147
Checking Systems with a Restrictor and Reservoir and Air Conditioner Compressor Regulating Valve N280 (with Externally Regulated Air Conditioner Compressor)
149
Checking Systems with an Expansion Valve, Receiver and Air Conditioner Compressor
154
Regulating Valve N280 (with Externally Regulated Air Conditioner Compressor)
154
With Expansion Valve, Receiver and Electrical Air Conditioner Compressor
164
11 Renewing Components
165
In the Event of Leaking or Damaged Components (Apart from the Air Conditioner Compressor, Receiver or Reservoir)
166
Renewing Air Conditioner Compressor
167
Renewing Receiver or Reservoir, and Restrictor
169
12 Testing Equipment and Tools
171
List of Test Equipment, Tools and Materials
171
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