A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009): Heating and Air Conditioning

Also for this vehicle: A4 Cabriolet L4-1.8L Turbo (AMB) (2005), A4 Cabriolet L4-2.0L Turbo (BWT) (2007), A4 Cabriolet Mk2, A4 Cabriolet V6-3.0L (AVK) (2003), A4 Mk1, A4 Mk2, A4 Mk3, A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009), A4 Quattro Cabriolet V6-3.0L (BGN) (2005), A4 Quattro Cabriolet V6-3.2L (BKH) (2007), A4 Quattro Sedan L4-1.8L Turbo (AEB) (1998), A4 Quattro Sedan L4-1.8L Turbo (ATW) (2000), A4 Quattro Sedan L4-1.8L Turbo (AWM) (2001), A4 Quattro Sedan L4-2.0L Turbo (BPG) (2005), A4 Quattro Sedan V6-2.8L (ACK) (1997), A4 Quattro Sedan V6-3.0L (AVK) (2002), A4 Quattro Sedan V6-3.2L (BKH) (2005), A4 Quattro Wagon (8K5) L4-2.0L Turbo (CAEB) (2011), A4 Quattro Wagon L4-1.8L Turbo (AEB) (1999), A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000), A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001), A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005), A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009), A4 Quattro Wagon V6-2.8L (AHA) (1998), A4 Quattro Wagon V6-3.0L (AVK) (2002), A4 Quattro Wagon V6-3.2L (BKH) (2005), A4 Sedan L4-1.8L Turbo (AEB) (1997), A4 Sedan L4-1.8L Turbo (ATW) (2000), A4 Sedan L4-1.8L Turbo (AWM) (2001), A4 Sedan L4-2.0L Turbo (BPG) (2005), A4 Sedan V6-2.8L (AFC) (1996), A4 Sedan V6-2.8L (AHA) (1998), A4 Sedan V6-3.0L (AVK) (2002), A4 Sedan V6-3.2L (BKH) (2007), A4 V6-3.0L (AVK) (2004).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Powertrain Management Powertrain Management: Sections
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
- Air Door, HVAC › Air Door Actuator / Motor, HVAC › Component Information50 pages
  - Description and Operation › A/C Control Motor Block Diagram2 3
  - Service and Repair47 pages
    Removal and Replacement41 pages
    Right Retaining Plate With Right Footwell and Center Vent Motor2 3 4 5 6 7 8
    Door Motors › Left Center Vent Motor2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…33
    Overhaul › Right Footwell Door Motor and Center Vent Motor2 3 4 5 6
- Air Duct › Component Information › Technical Service Bulletins88 pages
  - Customer Interest for Air Duct:44 pages
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    85110433 pages
    Mar22 pages
    11 › A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
  - All Technical Service Bulletins for Air Duct:44 pages
    85110433 pages
    Mar22 pages
    11 › A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
- Air Register › Component Information › Service and Repair › Instrument Panel Vents and Air Ducts › Left Radiator Housing With Temperature Doors2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
- Ambient Temperature Sensor / Switch HVAC › Component Information9 pages
  - Testing and Inspection › Outside Air Temperature Sensor Test Requirements2 3 4 5
  - Service and Repair › Outside Air Temperature Sensor2 3 4
- Auxiliary Cabin Heater › Component Information › Description and Operation2 3 4
- Auxiliary Water Pump › Component Information › Description and Operation
- Blower Motor › Component Information › Service and Repair2
- Blower Motor Resistor › Component Information › Service and Repair2
- Cabin Air Filter › Component Information › Description and Operation2 3
- Cabin Temperature Sensor / Switch › Component Information › Service and Repair
- Climate Control Exhaust Gas Sensor › Component Information › Description and Operation2 3 4 5
- Compressor HVAC › Compressor Pulley › Component Information13 pages
  - Description and Operation › Compressor Drive Unit2 3 4 5 6
  - Service and Repair › Compressor Pulley2 3 4 5 6 7
- Condenser HVAC › Component Information › Service and Repair2 3 4 5 6 7 8 9 10
- Control Assembly, HVAC › Component Information7 pages
  - Description and Operation
  - Service and Repair › A/C Control Head Module2 3 4 5 6
- Control Module HVAC › Component Information18 pages
  - Technical Service Bulletins11 pages
    Customer Interest: › 870904
    All Technical Service Bulletins: › 870904
    All Other Service Bulletins for Control Module HVAC: › 9110602 3 4 5 6 7 8 9
    All Other Service Bulletins for Control Module HVAC: › 911060
  - Description and Operation › A/C Control Modules2
  - Service and Repair › A/C Control Head Module2 3 4 5
- Coupler HVAC › A/C Coupler O-ring › Component Information › Service and Repair
- Discharge Air Temperature Sensor / Switch, HVAC › Component Information › Service and Repair › Outside Air Temperature Sensor2 3 4 5 6 7 8 9 10 11 12 13 14
- Evaporator Core › Component Information › Technical Service Bulletins8 pages
  - Customer Interest for Evaporator Core: › 8710032 3 4
  - All Technical Service Bulletins for Evaporator Core: › 8710032 3 4
- Evaporator Drain Tube › Component Information › Technical Service Bulletins8 pages
  - Customer Interest for Evaporator Drain Tube: › 8711182 3 4
  - All Technical Service Bulletins for Evaporator Drain Tube: › 8711182 3 4
- Evaporator Temperature Sensor / Switch › Component Information › Service and Repair
- Expansion Valve › Component Information › Testing and Inspection › A/C Compressor Regulator Valve, Checking Activation Signal2 3 4 5
- Heater Core › Component Information › Service and Repair › Heat Exchanger2 3 4 5 6 7 8 9 10 11
- Heater Core Case › Component Information › Service and Repair › Right Radiator Housing, Without Motor Mounting Plate2 3 4 5 6 7 8 9 10 11 12 13
- Hose/Line HVAC › Component Information › Service and Repair › Disconnecting and Connecting Refrigerant Lines from Compressor, 4 Cylinder Engine2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
- Housing Assembly HVAC › Component Information144 pages
  - Technical Service Bulletins88 pages
    Customer Interest for Housing Assembly HVAC:44 pages
    85110433 pages
    Mar22 pages
    11 › A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    All Technical Service Bulletins for Housing Assembly HVAC:44 pages
    85110433 pages
    Mar22 pages
    11 › A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
    A/C - Whistling Noise From The Blower Motor11 pages
    A/C - Whistling Noise From The Blower Motor2 3
    Service › Test to Determine Root Cause(s)2 3 4 5 6 7 8
  - Description and Operation › A/C Unit and Air Intake Housing Components, Comfort2 3 4 5 6 7 8 9 10 11 12
  - Service and Repair44 pages
    Procedures › A/C System Evaporator, Cleaning2 3
    Removal and Replacement › Evaporator with A/C Unit Installed2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
    Overhaul › A/C Unit Air Intake Housing2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
- Receiver Dryer › Component Information › Service and Repair2 3 4
- Refrigerant › Component Information5 pages
  - Specifications › Capacity Specifications2
  - Service and Repair › Operating A/C System After Filling Refrigerant Circuit2 3
- Refrigerant Oil › Component Information › Specifications › Capacity Specifications2
- Refrigerant Pressure Sensor / Switch, HVAC › High Pressure Sensor / Switch, HVAC › Component Information › Testing and Inspection2 3 4
- Relays and Modules - HVAC › Control Module HVAC › Component Information9 pages
  - Technical Service Bulletins2 pages
    Customer Interest for Control Module HVAC: › 870904
    All Technical Service Bulletins for Control Module HVAC: › 870904
  - Description and Operation › A/C Control Modules2
  - Service and Repair › A/C Control Head Module2 3 4 5
- Sensors and Switches - HVAC35 pages
- Solar Sensor, HVAC › Component Information › Service and Repair
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections