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Home >> Audi >> 2012 >> Q5 3.2 >> 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 >> Front Heater And A/C Unit >> Overview - Evaporator Housing

Overview - Evaporator Housing

-- Remove the A/C unit. Refer to HEATER AND A/C UNIT, REMOVING AND INSTALLING .

-- Remove the evaporator housing from the A/C unit. Refer to EVAPORATOR HOUSING, REMOVING AND INSTALLING  and to OVERVIEW - ATTACHMENTS FOR HEATER AND A/C UNIT AND AIR INTAKE HOUSING, "Basis" VERSION  ("Basis" A/C Unit, Disassembling and Assembling) or to OVERVIEW - ATTACHMENTS FOR HEATER AND A/C UNIT AND AIR INTAKE HOUSING, "Convenience" VERSION  ("Convenience" A/C Unit, Disassembling and Assembling).

NOTE:

From the start of production up to the changeover from MY 2012, evaporators approximately 40 mm wide (block depth) were installed (A/C unit part number "8K_ 820 005"). From MY 2012 as a running change, an evaporator with an approximately 50 mm width (block depth) is being installed depending on the vehicle version (A/C unit part number "8T_ 820 005"). Pay attention to the correct allocation of the expansion valve to the evaporator (there are different versions) .

Fig 1: Overview Of Evaporator Housing
GWWA87-10562Courtesy of AUDI OF AMERICA, LLC
  1. Bolt
  2. Expansion Valve
  3. O-Ring Seal
  4. O-Ring Seal
  5. Mounting Plate
  6. Rubber Grommet
    • For sealing the opening through the plenum chamber rear wall for the refrigerant lines.
    • The installed supporting ring was already removed when the A/C unit was removed; pay attention to correct installation position. Refer to HEATER AND A/C UNIT, REMOVING AND INSTALLING  (Removing the A/C unit).
  7. Evaporator Housing Upper Section
    • There are different versions. Refer to -item  8- "Evaporator" .
  8. Evaporator
    • This version is installed by the manufacturer.
    • Removing with the A/C unit installed. Refer to EVAPORATOR, REMOVING AND INSTALLING .
    • There are different versions. Refer to EXPANSION VALVE, REMOVING AND INSTALLING .
      NOTE:

      From the start of production up to the changeover from MY 2012, evaporators approximately 40 mm wide (block depth) were installed (A/C unit part number "8K_ 820 005"). These evaporators can be replaced with the A/C unit still installed.

      From MY 2012 as a running-change, evaporators approximately 50 mm wide (block depth) are being installed (A/C unit with the part number "8T_ 820 005") depending on the vehicle version. These evaporators can be replaced only together with the evaporator housing (with the A/C unit removed).

      Pay attention to the correct allocation of the expansion valve to the evaporator (there are different versions) .

  9. Evaporator Cover
  10. Evaporator Cover
  11. Cover for Refrigerant Lines
    • Pay attention to the correct mounting on the evaporator housing. Refer to EVAPORATOR, REMOVING AND INSTALLING  (Evaporator with the A/C unit installed, removing and installing).
  12. Screw
  13. Bracket
  14. Bracket for A/C Unit on the Center Tunnel
    • The bracket equalizes the position tolerance of the A/C unit to the center tunnel.
  15. Evaporator Housing Lower Section
    • There are different versions. Refer to -item  8- "Evaporator" .
  16. Evaporator Vent Temperature Sensor -G263-
  17. Clamp
  18. Refrigerant Pipe to the Replacement Evaporator
    • Included in the replacement evaporator kit .
    • Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .
  19. Refrigerant Pipe to the Replacement Evaporator
    • Included in the replacement evaporator kit .
    • Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .
  20. O-Ring for the Connection on the Replacement Evaporator
    • Installing. Refer to REFRIGERANT CIRCUIT SEALS .
    • For allocation .
    • Included in the replacement evaporator kit .
      NOTE:

      Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .

  21. O-Ring for the Connection on the Replacement Evaporator
    • Installing. Refer to REFRIGERANT CIRCUIT SEALS .
    • For allocation .
    • Included in the replacement evaporator kit .
      NOTE:

      Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .

  22. Bracket for the Refrigerant Pipes in the Connection on the Replacement Evaporator
    • Installing. Refer to EVAPORATOR, REMOVING AND INSTALLING  (Evaporator with the A/C installed, removing and installing)
    • Included in the replacement evaporator kit .
      NOTE:

      Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .

  23. Bolt
    • Tightening specification: 5 Nm.
    • Installing. Refer to EVAPORATOR, REMOVING AND INSTALLING  (Evaporator with the A/C installed, removing and installing)
    • Included in the replacement evaporator kit .
  24. Replacement Evaporator Cover
    • Included in the replacement evaporator kit .
    • Pay attention to the correct mounting on the evaporator. Refer to EVAPORATOR, REMOVING AND INSTALLING  (Evaporator with the A/C unit installed, removing and installing).
    • Depending on the version, prior to installation, the cover must be reworked in the area where refrigerant pipes connect to the evaporator. Refer to EVAPORATOR, REMOVING AND INSTALLING .
      NOTE:

      Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .

  25. Replacement Evaporator Cover
    • Included in the replacement evaporator kit .
    • Pay attention to the correct mounting on the evaporator. Refer to EVAPORATOR, REMOVING AND INSTALLING  (Evaporator with the A/C unit installed, removing and installing).
      NOTE:

      Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .

  26. Replacement Evaporator
    • This version is a replacement part .
    • The replacement evaporator includes the listed components (refer to -item  18 through -item  27- Refrigerant Pipe to the Replacement Evaporator through Separator Wall) .
    • Installing with the A/C unit installed. Refer to EVAPORATOR, REMOVING AND INSTALLING .
      NOTE:

      Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .

  27. Separator Wall
    • Included in the replacement evaporator kit .
    • After installing the replacement evaporator, this separating wall is installed in the lower section of evaporator housing and sealed. Refer to EVAPORATOR, REMOVING AND INSTALLING  (Evaporator with A/C unit installed, removing and installing).
      NOTE:

      Available only for evaporators approximately 40 mm wide (block depth). Refer to -item  8- "Evaporator" .

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