AIR DUCTS AND VENTS IN THE REAR VEHICLE INTERIOR, "High" A/C SYSTEM, PR NUMBER 9AH/ 9AQ

Depending on vehicle equipment, there are different versions of the A/C system. Make sure to use the correct version and pay attention to the allocation of different components. Refer to Parts Information.
To remove the rear air ducts, depending on the component location of the air duct and the vents, the B-pillar trim panels must be removed and the rear carpet must be carefully loosened and folded to the side. Refer to B-PILLAR TRIM PANEL, REMOVING AND INSTALLING and CARPET, REMOVING AND INSTALLING .
Removing and installing the vents and air ducts in the B-pillars. Refer to B-PILLAR TRIM PANEL, REMOVING AND INSTALLING .

Courtesy of AUDI OF AMERICA, LLC

Front Passenger Side Rear Ionizer -J1108-
- Equipped on some models
- Different component locations Q8. Refer to COMPONENT LOCATION OVERVIEW - AIR IONIZATION .
- Removing and Installing. Refer to .
Air Duct in the Right B-Pillar
- There are different versions. Refer to the Parts Information.
- Equipment version with Passenger Side Rear Ionizer -J1108-, without an ionizer the installation opening in the air duct must be sealed with airtight adhesive tape
- Removing and installing. Refer to B-PILLAR TRIM PANEL, REMOVING AND INSTALLING , additionally free up the wiring harness
Vent in the Right B-Pillar
- Removing and installing. Refer to B-PILLAR TRIM PANEL, REMOVING AND INSTALLING .
Footwell Vent under the Right Seat (Front Passenger Seat)
- With installation opening for the Right Rear Footwell Vent Temperature Sensor -G638-
  Removing and Installing:
- Remove the carpet on the front passenger side. Refer to CARPET, REMOVING AND INSTALLING .
- Remove the expanding rivet and free up the air duct
- Disconnect the connector for the Right Rear Footwell Vent Temperature Sensor -G638-.
Right Rear Footwell Vent Temperature Sensor -G638-
- Removing and Installing. Refer to Right Rear Footwell Vent Temperature Sensor -G638-, REMOVING AND INSTALLING .
Air Duct to the Footwell Vent under the Right Seat (Front Passenger Seat)
Removing and Installing:
- Remove the carpet on the front passenger side. Refer to CARPET, REMOVING AND INSTALLING .
- Remove the expanding rivet and free up the air duct
Right Rear Upper Body Vent Temperature Sensor -G636-
- Removing and Installing. Refer to Right Rear Upper Body Vent Temperature Sensor -G636-, REMOVING AND INSTALLING .
Air Duct to the Vent in the Right B-Pillar
- With installation opening for the Right Rear Upper Body Vent Temperature Sensor -G636-
  Removing and Installing:
- Loosen the rear carpet and fold it carefully to the side. Refer to CARPET, REMOVING AND INSTALLING .
- Remove the air duct in the right B-pillar -Item 2-.
- Remove the expanding rivet
- Disconnect the connector for the Right Rear Upper Body Vent Temperature Sensor -G636-.
Air Duct from the A/C Unit to the Vent in the Right B-Pillar
Removing and Installing:
- Loosen the rear carpet and fold it carefully to the side. Refer to CARPET, REMOVING AND INSTALLING .
- Remove the air duct to the vent in the right B-pillar -Item 8-
Rear Center Console Vent
- There are different versions. Refer to the Parts Information.
- With a Position Sensor in Left Rear Upper Body Vent -G630- and Position Sensor in Right Rear Upper Body Vent -G631-. Refer to the Parts Information.
- Removing and installing. Refer to CENTER CONSOLE, REMOVING AND INSTALLING .
Air Routing
- From the rear air distribution housing to the rear center console vent
- To remove, remove the rear trim and air duct. Refer to CENTER CONSOLE REAR TRIM, REMOVING AND INSTALLING
Air Duct from the A/C Unit to the Vent in the Left B-Pillar
Removing and Installing:
- Loosen the rear carpet and fold it carefully to the side. Refer to CARPET, REMOVING AND INSTALLING .
- Remove the air duct to the vent in the left B-pillar -Item 13-
Air Duct to the Vent in the Left B-Pillar
- With opening for the Left Rear Upper Body Vent Temperature Sensor -G635-
  Removing and Installing:
- Loosen the rear carpet and fold it carefully to the side. Refer to CARPET, REMOVING AND INSTALLING .
- Remove the air duct in the left B-pillar -Item 15-
- Remove the expanding rivet
- Disconnect the connector for the Left Rear Upper Body Vent Temperature Sensor -G635-.
Left Rear Upper Body Vent Temperature Sensor -G635-
- Removing and Installing. Refer to Left Rear Upper Body Vent Temperature Sensor -G635-, REMOVING AND INSTALLING .
Air Duct in the Left B-Pillar
- There are different versions. Refer to the Parts Information.
- Removing and installing. Refer to B-PILLAR TRIM PANEL, REMOVING AND INSTALLING .
Vent in the Left B-Pillar
- Removing and installing. Refer to B-PILLAR TRIM PANEL, REMOVING AND INSTALLING .
Footwell Vent Under the Left Seat (Driver Seat)
- With installation opening for the Left Rear Footwell Vent Temperature Sensor -G637-
  Removing and Installing:
- Remove the carpet on the driver side. Refer to CARPET, REMOVING AND INSTALLING .
- Disconnect the connector for the Left Rear Footwell Vent Temperature Sensor -G637-
Left Rear Footwell Vent Temperature Sensor -G637-
- Removing and Installing. Refer to Left Rear Footwell Vent Temperature Sensor -G637-, REMOVING AND INSTALLING .
Air Duct to the Footwell Vent under the Left Seat (Driver Seat)
Removing and Installing:
- Remove the carpet on the driver side. Refer to CARPET, REMOVING AND INSTALLING .
- Remove the mount for the Data Bus on Board Diagnostic Interface -J533-. Refer to Data Bus on Board Diagnostic Interface -J533-, REMOVING AND INSTALLING .
- Remove the expanding rivet and free up the air duct
Rear Heater and A/C Unit
- Refer to COMPONENT LOCATION OVERVIEW - REAR ADJUSTMENT MOTORS
- Refer to AIR DUCT IN THE REAR HEATER AND A/C UNIT, "High" A/C SYSTEM, PR NUMBER 9AH/ 9AQ
- Removing and Installing. Refer to HEATER AND A/C UNIT, REMOVING AND INSTALLING, "High" A/C SYSTEM, PR NUMBER 9AH/ 9AQ .
Rear Air Duct
- From the air duct (from the front heater and A/C unit) to the rear heater and A/C unit
- Q7: to remove, remove the center console. Refer to CENTER CONSOLE, REMOVING AND INSTALLING .
- Q8: to remove, remove the heater and A/C unit. Refer to HEATER AND A/C UNIT, REMOVING AND INSTALLING, "High" A/C SYSTEM, PR NUMBER 9AH/ 9AQ .
Rear Air Duct
- From the front heater and A/C unit (to the air duct) to the rear heater and A/C unit
- Q7: to remove, remove the center console. Refer to CENTER CONSOLE, REMOVING AND INSTALLING .
- Q8: to remove, remove the heater and A/C unit. Refer to HEATER AND A/C UNIT, REMOVING AND INSTALLING, "High" A/C SYSTEM, PR NUMBER 9AH/ 9AQ .
Front Heater and A/C Unit with Air Intake Housing
- Different versions. Refer to OVERVIEW - HEATER AND A/C UNIT and the Parts Information.
- Removing and Installing. Refer to HEATER AND A/C UNIT, REMOVING AND INSTALLING .
- Air intake, air vents and air routing in the heater and A/C unit. Refer to AIR DUCT IN FRONT HEATER AND A/C UNIT .