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Home >> Audi >> 2017 >> SQ5 Premium Plus >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation & Air Conditioning (2 Of 2) (As Of 06.2014) >> 87 Air Conditioning >> Air Guide >> Overview - Air Routing And Air Distribution In Passenger Compartment

Overview - Air Routing And Air Distribution In Passenger Compartment

NOTE:

Refer to AIR INTAKE AND OUTLET OPENINGS 

For component locations of individual components. Refer to OVERVIEW - COMPONENTS INSIDE FRONT PASSENGER COMPARTMENT and ACTUATORS .

The passenger compartment ventilation occurs via two vent frames (in luggage compartment at the right and left near the bumper). Refer to PASSENGER COMPARTMENT FORCED AIR EXTRACTION, CHECKING  (passenger compartment forced air extraction).

The air routing and the air distribution in the passenger compartment is different on vehicle equipped with the "Convenience" A/C system and the "Basis" A/C system.

From 01/2008, A/C units which have an additional connection for the glove compartment cooling are being installed as a running change. On vehicles without glove compartment cooling, this connection is sealed with a plug. Refer to GLOVE COMPARTMENT COOLING CONNECTION ON AIR INTAKE HOUSING .

The following illustrations show the location of the components on an Audi A5 Coupe; an Audi A5 Sportback, Audi A4, Audi Q5 etc. The location of the components varies slightly. The description of the components is not different; removing and installing is performed in the same way as on the Audi A5 Coupe.

Fig 1: Overview Of Air Routing And Air Distribution In Passenger Compartment
GWWA87-10566Courtesy of AUDI OF AMERICA, LLC
  1. Defroster Vent/Windshield
    • Air guide to windshield
    • Removing and installing. Refer to FRONT CENTER DEFROSTER VENT, REMOVING AND INSTALLING .
    • If the intermediate piece air flow/defrost (refer to -item  8- "Air Guide Intermediate Piece/Defrost ("Convenience")" and -item  7- "Air Guide Intermediate Piece/Defrost" ("Basis")) was crushed or crumpled when the dash panel was being installed, then the air flow to the windshield will be uneven or insufficient. Refer to INSTRUMENT PANEL, REMOVING AND INSTALLING .
  2. Vents for Indirect Ventilation
    • Installed only in vehicles with "Convenience" version A/C system
    • Air flows out of these vents on vehicles equipped with the "Convenience" A/C system. The opening in the A/C unit is sealed (different A/C versions) on vehicles equipped with the "Basis" A/C system.
  3. Instrument Panel
    • With air guides to defroster vents and various instrument panel vents
    • There are different versions, depending on the A/C system version ("Convenience" and "Basis") .
    • Removing and installing. Refer to INSTRUMENT PANEL, REMOVING AND INSTALLING .
  4. Defroster Vent/Right Side Window
  5. Right Instrument Panel Vent
  6. Air Guide /Instrument Panel
    • With air guides to defroster vents and various instrument panel vents
    • There are different versions, depending on the A/C system version ("Convenience" and "Basis").
    • The air guide is a component of the instrument panel, refer to -item  3- "Instrument Panel" and cannot be replaced separately. Refer to OVERVIEW - INSTRUMENT PANEL .
    • Instrument panel removing and installing. Refer to INSTRUMENT PANEL, REMOVING AND INSTALLING .
  7. Air Guide Intermediate Piece/Defrost ("Basis")
    • There are different versions, depending on the A/C system version ("Convenience" and "Basis"). Refer to parts .
    • To remove and install, remove the instrument panel. Refer to INSTRUMENT PANEL, REMOVING AND INSTALLING .
    • If the intermediate piece for air routing/defrost was crushed or crumpled when the instrument panel was installed, the air routed to the windshield will be uneven or insufficient. Refer to INSTRUMENT PANEL, REMOVING AND INSTALLING .
  8. Air Guide Intermediate Piece/Defrost ("Convenience")
    • There are different versions, depending on the A/C system version ("Convenience" and "Basis"). Refer to parts .
    • To remove and install, remove the instrument panel. Refer to INSTRUMENT PANEL, REMOVING AND INSTALLING .
    • If the intermediate piece for air routing/defrost was crushed or crumpled when the instrument panel was installed, the air routed to the windshield will be uneven or insufficient. Refer to INSTRUMENT PANEL, REMOVING AND INSTALLING .
  9. Air Duct to the Right Instrument Panel Vent
  10. Air Duct to the Right Instrument Panel Vent
  11. Fresh Air Intake
  12. A/C Unit with Air Intake Housing
  13. Air Intake from the Vehicle Interior (Recirculating Air Mode)
    • The air is taken from the passenger footwell under the glove compartment.
  14. Right Front Footwell Vent
  15. Air Guide to the Rear Vents
    • There are different versions, depending on the A/C system version ("Convenience" and "Basis"). Refer to parts .
    • On vehicles equipped with the "Basis" A/C system, there is no air guide and no vents in the rear center console.
      NOTE:

      This air guide is attached to the air outlet openings of the A/C unit. There are slits inside the air guide. If the door position is incorrect, especially on vehicles with the "Convenience" A/C system, whistling noise can come from these slits. The upper slits are covered with tape during production (adhesive strips from 02/2009 as a running change). Refer to REAR VENT AIR GUIDE SLOTS, SEALING .

  16. Air Duct to Right Rear Footwell Vent
  17. Right Rear Footwell Vent
    • The air flows out from under the front passenger seat.
    • Removing and installing; carpet, removing. Refer to Passenger Compartment Trim .
      NOTE:

      The right rear footwell vent can be removed without having to remove the carpet; just separate the connecting rib on the carpet. Secure the connecting rib again with a suitable adhesive after installing the footwell vent.

  18. Air Guide to Vent in Rear Center Console
  19. Air Guide to Vent in Rear Center Console
  20. Vent in Rear Center Console
  21. Left Rear Footwell Vent
    • The air flows out under the driver seat.
    • Removing and installing; carpet, removing. Refer to Passenger Compartment Trim .
      NOTE:

      The left rear footwell vent can be removed without having to remove the carpet; just separate the connecting rib on the carpet. Secure the connecting rib again with a suitable adhesive after installing the footwell vent.

  22. Air Duct to Left Rear Footwell Vent
  23. Left Front Footwell Vent
  24. Air Duct to the "Center" Instrument Panel Vent
    • On vehicles equipped with the "Basis" A/C system, the Center Vent Temperature Sensor -G191- is installed in this air guide. Refer to Center Vent Temperature Sensor -G191-, REMOVING AND INSTALLING .
    • On vehicles equipped with the "Convenience" A/C system, the Center Vent Temperature Sensor -G191- opening in the air guide is sealed with a grommet (the Center Vent Temperature Sensor -G191- is not installed here). Refer to parts .
      NOTE:

      This air guide has an opening. At certain setting, whistling noises may be present at this opening. Therefore, this opening is sealed with a plug at the factory (running change from 02/2009). Refer to PLUGS, INSTALLING IN CENTER VENT AIR DUCT .

  25. Air Duct to the Left Instrument Panel Vent
  26. Air Duct to the Left Instrument Panel Vent
  27. Center Instrument Panel Vent
  28. Left Instrument Panel Vent
  29. Defroster Vent/Left Side Window
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