Volkswagen Passat 2012 User Manual

P
r
o
t
e
c
t
e
d
b
y
c
o
p
y
r
i
g
h
t
.
C
o
p
y
i
n
g
f
o
r
p
r
i
v
a
t
e
o
r
c
o
m
m
e
r
c
i
a
l
p
u
r
p
o
s
e
s
,
i
n
p
a
r
t
o
r
i
n
w
h
o
l
e
,
i
s
n
o
t
p
e
r
m
i
t
t
e
d
u
n
l
e
s
s
a
u
t
h
o
r
i
s
e
d
b
y
V
o
l
k
s
w
a
g
e
n
A
G
.
V
o
l
k
s
w
a
g
e
n
A
G
d
o
e
s
n
o
t
g
u
a
r
a
n
t
e
e
o
r
a
c
c
e
p
t
a
n
y
l
i
a
b
i
l
i
t
y
w
i
t
h
r
e
s
p
e
c
t
t
o
t
h
e
c
o
r
r
e
c
t
n
e
s
s
o
f
i
n
f
o
r
m
a
t
i
o
n
i
n
t
h
i
s
d
o
c
u
m
e
n
t
.
C
o
p
y
r
i
g
h
t
b
y
V
o
l
k
s
w
a
g
e
n
A
G
.
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 Passat 2012 Specifications

General

Brand	Volkswagen
Model	Passat 2012
Category	Automobile
Language	English

Summary

00 - Technical Data

1.5 Refrigerant R134a

1.7 Refrigerant Machine Oil

1.10 General Safety

Outlines essential safety precautions when working with AC systems.

1.11 Safety Precautions for Working on Vehicles with AC and Handling Refrigerant R134a

Specific safety measures for handling refrigerant R134a and working on AC.

1.12 Basics for Working on Refrigerant Circuit

Covers essential practices for working safely and cleanly on the refrigerant circuit.

2 General Information on Refrigerant Circuit

2.1 Refrigerant Circuit Components

2.3 Evacuation and Charging Valves for Quick-Release Couplings of Air Conditioner Service Station on Refrigerant Circuit

2.6 Pressures and Temperatures in the Refrigerant Circuit

Provides typical pressure and temperature values for the refrigerant circuit.

2.9 Test and Measurement Work Using a Pressure Gauge

Outlines procedures for using pressure gauges for AC system checks.

2.10 Air Conditioner Service and Recycling Equipment

2.11 Notes to Repairs on Refrigerant Circuit

4 Refrigerant Circuit

4.1 Important Repair Notes on Air Conditioning

Provides critical notes before starting repairs on air conditioning systems.

4.2 Retrofitting Refrigerant Circuit from R12 Refrigerant to R134a Refrigerant

5 Working with the Air Conditioner Service Station

5.1 Important Notes for Working with the Air Conditioner Service Station

Covers essential guidelines and precautions for using AC service equipment.

5.2 Connecting Air Conditioner Service Station for Measuring and Checking

Describes the procedure for connecting the service station for diagnostics.

5.3 Draining Refrigerant Circuit Using Air Conditioner Service Station

Explains how to safely drain the refrigerant circuit using service station.

5.4 Evacuating Refrigerant Circuit Using Air Conditioner Service Station

Details the process for evacuating moisture and air from the AC circuit.

5.5 Charging Refrigerant Circuit Using Air Conditioner Service Station

Outlines the steps for charging the AC system with refrigerant using the service station.

5.6 Bringing Air Conditioning System into Service After Charging

Explains how to safely put the AC system back into operation after service.

6 Detecting Leaks in Refrigerant Circuit

6.1 Leak Detection in Refrigerant Circuit Using Compressed Air or Nitrogen

Details methods for detecting leaks using gas pressure.

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

Explains how to use a specific electronic leak detector.

6.3 Detecting Leaks Using Leak Detecting System - VAS 6196- or VAS 6201-

7 Clearing Refrigerant Circuit of Contaminants

7.1 Blowing Through Refrigerant Circuit with Compressed Air and Nitrogen

7.2 Purging (Cleaning) Refrigerant Circuit with Refrigerant R134a

Details the process of cleaning the refrigerant circuit using R134a.

7.2.2 Purging Electrical Air Conditioner Compressor

7.2.3 Adapters for Setting Up Purging Circuits

8 Complaints

8.1 Possible Complaints About Refrigerant Circuit

Lists common issues and symptoms related to the refrigerant circuit.

9 Connecting Air Conditioner Service Station

9.1 For Vehicles with Connections on Both Low-Pressure and High-Pressure Sides of Refrigerant Circuit

10 Checking Pressures on Vehicles

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

Explains how to check refrigerant circuit pressures using a service station.

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

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

10.4 Checking Systems with Expansion Valve, Receiver and Compressor Regulating Valve - N280- (Externally Regulated)

10.5 Checking Systems with Restrictor, Reservoir and Compressor Regulating Valve - N280- (Externally Regulated)

10.7 With Expansion Valve, Receiver and Electrical Air Conditioner Compressor

11 Renewing Components

11.1 In Event of Leaking or Damaged Components (Apart from Compressor, Receiver or Reservoir)

11.2 Renewing Air Conditioner Compressor

Provides instructions for replacing the air conditioner compressor.

11.3 Renewing Receiver or Reservoir, and Restrictor