Passat (B3): Heating, ventilation, air conditioning system
Also for this vehicle: Passat 4Motion V6-2.8L (ATQ) (2005), Passat GLS 4Motion V6-2.8L (ATQ) (2002), Passat GLS L4-1.8L Turbo (AUG) (2001), Passat GLS V6 V6-2.8L (ATQ) (2001), Passat GLS Wagon L4-1.8L Turbo (AUG) (2001), Passat GLS Wagon L4-1.8L Turbo (AWM) (2002), Passat GLS Wagon V6 V6-2.8L (ATQ) (2001), Passat GLX V6 V6-2.8L (ATQ) (2001), Passat GLX Wagon V6 V6-2.8L (ATQ) (2001), Passat L4-1.8L Turbo (AWM) (2004), Passat L4-1984cc 2.0L DOHC (1991), Passat L4-1984cc 2.0L DOHC (9A) (1990), Passat Sedan 4Motion V6-2.8L (ATQ) (2003), Passat Sedan 4Motion V6-3.6L (BLV) (2007), Passat Sedan 4Motion W8-4.0L (BDP) (2002), Passat Sedan L4-1.8L Turbo (AWM) (2003), Passat Sedan L4-1.9L DSL Turbo (AAZ) (1995), Passat Sedan L4-1.9L DSL Turbo (AHH) (1998), Passat Sedan L4-1781cc 1.8L DOHC Turbo (ATW) (2000), Passat Sedan L4-1781cc 1.8L Turbo (AEB) (1999), Passat Sedan L4-1896cc 1.9L DSL Turbo (1Z) (1997), Passat Sedan L4-2.0L (ABA) (1996), Passat Sedan L4-2.0L Turbo (BPY) (2007), Passat Sedan L4-2.0L Turbo (CCTA) (2010), Passat Sedan V6-2.8L (ATQ) (2000), Passat Sedan V6-2771cc 2.8L DOHC (AHA) (1998), Passat Sedan V6-2792cc 2.8L DOHC (1994), Passat Sedan V6-2792cc 2.8L DOHC (AAA) (1995), Passat Sedan V6-2792cc 2.8L DOHC (AAA) SFI (1997), Passat Sedan V6-3.6L (BLV) (2008), Passat Syncro Sedan L4-1781cc 1.8L DOHC Turbo (ATW) (2000), Passat Syncro Sedan V6-2771cc 2.8L DOHC (AHA) (1999), Passat Syncro Wagon V6-2.8L (ATQ) (2000), Passat Syncro Wagon V6-2771cc 2.8L DOHC (AHA) (1998), Passat V6-2.8L (ATQ) (2004), Passat V6-3.6L (BLV) (2006), Passat Wagon 4Motion V6-2.8L (ATQ) (2003), Passat Wagon L4-1.8L Turbo (AWM) (2003), Passat Wagon L4-1.9L DSL Turbo (AAZ) (1996), Passat Wagon L4-1.9L DSL Turbo (AHU) (1997), Passat Wagon L4-1781cc 1.8L DOHC Turbo (ATW) (2000), Passat Wagon L4-1781cc 1.8L Turbo (AEB) (1998), Passat Wagon L4-2.0L (ABA) (1995), Passat Wagon L4-2.0L Turbo (BPY) (2008), Passat Wagon L4-2.0L Turbo (CCTA) (2009), Passat Wagon V6-2.8L (ATQ) (2000), Passat Wagon V6-2792cc 2.8L DOHC (1994), Passat Wagon V6-3.6L (BLV) (2007).
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
- 06Heating, ventilation, air conditioning systemHeating, ventilation, air conditioning system: Sections
Heating, air conditioner33 pages
Self diagnosis, V.A.G Inspection Service › Self diagnosis of Climatronic11 pages
Air conditioner17 pages
Notes on repair work to vehicles with air conditioning and on handling refrigerant3 pages
Air conditioner with manual controls8 pages
- Servicing air conditioning and heating - Passenger compartment
- Servicing air conditioning and heating - engine compartment
- Installing and adjusting cables
- Vacuum hose connection diagram
- Removing and installing compressor bracket - 4 Cyl. petrol engine
- Removing and installing compressor bracket - 6 Cyl. petrol engine
- Removing and installing compressor bracket - Turbo Diesel engine
Climatronic - air conditioner with automatic regulation6 pages
Air conditioning system with refrigerant R134a › Technical data166 pages
General notes on air conditioning systems48 pages
- Introduction
- Additional information
Basics of air conditioning4 pages
- Vapour pressure table for refrigerant R134a
- How air conditioning works
General safety16 pages
- Product characteristics
- Handling refrigerants
- Wear protective glasses
- Wear protective gloves and apron
- Do not allow liquid refrigerant to come in contact with the skin
- Do not breath in refrigerant vapour
- Absolutely NO SMOKING
- Welding and soldering on refrigeration systems
- Pungent smell
- First aid
- Handling pressure vessels
- Do not heat above 50? C
- Do not apply uncontrolled heat
- Seal empty containers
- Safety instructions for using extraction and charging equipment
- Safety precautions for when working on vehicles with air conditioning and when handling refrigerant R134a
Basics for working on refrigerant circuit3 pages
General information on refrigerant circuit46 pages
Refrigerant circuit components15 pages
- Distribution of the refrigerant circuit components and their influence on the high-pressure and low-pressure sides
- Air conditioning system compressor with magnetic clutch:
- Air conditioner compressor without magnetic clutch
- Air conditioner compressor without magnetic clutch, with elastic drive coupling
- Electric compressor for hybrid vehicles
- Condenser
- Evaporator
- Reservoir
- Restrictor
- Receiver
- Expansion valve
- O-ring
- Pipes and hoses in refrigerant circuit
- High-pressure safety valve
Design of refrigerant circuit3 pages
Evacuation and charging valves for quick-release couplings of air conditioner service station on refrigerant circuit4 pages
Switch and sender in refrigerant circuit and related connections9 pages
- High-pressure switch for air conditioning systemF23
- High-pressure switch for magnetic clutchF118
- Low-pressure switch for air conditioning systemF73
- Connections to valves for switches in the refrigerant circuit
- Air conditioning system pressure switchF129
- High-pressure senderG65
- Refrigerant pressure and temperature senderG395
- Air conditioner compressor regulating valveN280
Electrical components not installed in refrigerant circuit5 pages
- Pressures and temperatures in the refrigerant circuit
- Refrigerant circuit with expansion valve
- Refrigerant circuit with restrictor and reservoir
Test and measurement work that can be performed using a pressure gauge2 pages
Air conditioner service and recycling equipment3 pages
- Notes to repairs on refrigerant circuit
Statutory texts and instructions6 pages
Working with the air conditioner service station9 pages
- 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 circuit4 pages
Clearing refrigerant circuit of contaminants6 pages
Blowing through refrigerant circuit with compressed air and nitrogen2 pages
Purging (cleaning) refrigerant circuit with refrigerant R134a3 pages
Complaints8 pages
Smells from heater and air conditioner unit4 pages
Connecting air conditioner service station3 pages
For vehicles that have connections on both low-pressure and high-pressure sides of refrigerant circuit2 pages
Checking pressures on vehicles18 pages
Checking pressures in refrigerant circuit (using air conditioner service station)4 pages
Checking systems with a restrictor and collector (with internally regulated air conditioner compressor)2 pages
Checking systems with an expansion valve and reservoir (with internally regulated air conditioner compressor)2 pages
Checking systems with an expansion valve and reservoir (without regulated air conditioner compressor)4 pages
Checking systems with a restrictor and reservoir and air conditioner compressor regulating valveN280 (with externally regulated2 pages
Checking systems with an expansion valve, receiver and air conditioner compressor regulating valveN280 (with externally regulate2 pages
- With expansion valve, receiver and electric compressor for hybrid vehicles
Renewing components10 pages
In the event of leaking or damaged components (apart from the air conditioner compressor, receiver or reservoir)3 pages
Renewing receiver or reservoir, and restrictor3 pages
Testing equipment and tools5 pages
List of test equipment, tools and materials4 pages
- Tools and materials available from distribution centre or importer
- Tools and materials commercially available
- Tools to be made locally
- Tools and materials available from distribution centre or importer
- Tools and materials commercially available
- Tools to be made locally