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Home >> Audi >> 2011 >> S5 4.2, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 619 (Heating, Ventilation & Air Conditioning (2 Of 2) (As Of 06.2014)) >> 87 Air Conditioning >> Front Heater And A/C Unit >> Overview - Attachments For Heater And A/C Unit And Air Intake Housing >> OVERVIEW - ATTACHMENTS FOR HEATER AND A/C UNIT AND AIR INTAKE HOUSING, "Basis" VERSION

OVERVIEW - ATTACHMENTS FOR HEATER AND A/C UNIT AND AIR INTAKE HOUSING, "Basis" VERSION

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

Fig 1: Identifying A/C System, Basis
GWWA87-10563Courtesy of AUDI OF AMERICA, LLC
  1. Bolt
  2. Bracket for Coolant Pipes
  3. Evaporator Housing
  4. Coolant Pipe
  5. Coolant Pipe
  6. O-Ring Seal
  7. Clamp
    • These clamps are installed by the manufacturer; they hold the coolant pipes in the heater core installed by the manufacturer, refer to -item  8- "Heat Exchanger".
  8. Heat Exchanger
  9. Bracket for Coolant Pipes in Replacement Heater Core
  10. Washer
    • Included with the replacement heater core.
  11. Bolt
    • Included with the replacement heater core.
    • Tightening specification: 2.5 Nm
  12. Replacement Heat Exchanger
    • With the A/C unit installed, removing and installing. Refer to HEATER CORE, REMOVING AND INSTALLING .
    • This version is a replacement part.
    • Included with the replacement heater core, refer to -item  6- "O-Ring Seal", and -item  9- "Bracket for Coolant Pipes in Replacement Heater Core", through -item  12- "Replacement Heat Exchanger".
    • Cover the heater core according to the version of the A/C system installed in the vehicle with foam seals. Refer to HEATER CORE, REMOVING AND INSTALLING  .
  13. Honeycomb
  14. Auxiliary Heater Heating Element -Z35-
  15. Bracket
  16. Left Radiator Housing (with the Temperature Doors)
  17. Defroster Door Motor -V107-
  18. Left Retaining Plate with the Footwell Door Motor -V261-
  19. Toothed Segment
  20. Retaining Plate with the Temperature Regulator Door Motor -V68-
    • Removing and installing the retaining plate with the Temperature Regulator Door Motor -V68- ; removing the actuator from the retaining plate. Refer to Temperature Regulator Door Motor -V68- /Rear Temperature Door Motor -V137-, REMOVING AND INSTALLING .
    • The actuation of the left and right temperature doors differs between vehicles equipped with the "Basis" A/C system and the "Convenience" A/C system On the "Basis" A/C system, the shaft for the left temperature doors are actuated by the Temperature Regulator Door Motor -V68- via a toothed segment, refer to -item  19- "Toothed Segment". The right temperature door is also actuated by the Temperature Regulator Door Motor -V68- via the connecting rod, refer to -item  23- "Connecting Rod for the Temperature Doors" which engaged in this toothed segment. Refer to OVERVIEW - AIR DISTRIBUTION HOUSING DOORS AND PARTITIONS .
    • Lightly coat the shaft bearings, the toothed segments as well as to the pins on the door levers with Lubricant G 000 150 ).
  21. Connecting Rod to the Defroster Door
  22. Actuating Arm to Defroster Door Motor -V107-
  23. Connecting Rod for the Temperature Doors
    NOTE:

    There are different connecting rods -A- (different version of the connecting element to the toothed segment and to the right temperature doors), depending on the date of production. .

    Depending on the production date, there are different versions of the levers and connecting elements on the A/C unit. At the start of production, the levers -A- were installed with a closed pin and the connecting rod -B-. In MY 2008, the levers -C- have a slotted pin and connecting rod -D-. When replacing, be sure to use the correct version..

    Fig 2: Air Conditioner, Levers And Connecting Elements
    GWWA87-10599Courtesy of AUDI OF AMERICA, LLC
  24. Footwell Vent Temperature Sensor -G192-
  25. Center Vent Temperature Sensor -G191-
  26. Wiring Harness, "Basis" Version
    • There are different versions.
    • Mark the allocation before disconnecting the connectors (danger of interchange, connectors of same shape for different motors and temperature sensor).
    • Secure wiring harness to mounting points provided on housing (using cable ties, refer to -item  27- "Cable ties", or on mounts) so that it does not come into contact with moving components.
  27. Cable Ties
  28. A/C System Air Distribution Housing, "Basis" Version
    • Do not disassemble further
    • Different versions between vehicles equipped with the "Convenience" A/C system and the "Basis" A/C system.
    • Lightly coat the curved washer guides, the shaft bearings, the toothed segments as well as to the pins on the door levers with lubricant (for example, with Lubricant G 000 150 ).
      NOTE:

      On the "Basis" version, the various doors (for example, for the left and right vents) are connected to each other by connecting rods; they are actuated by only one actuator. Refer to OVERVIEW - AIR DISTRIBUTION HOUSING DOORS AND PARTITIONS .

  29. Right Radiator Housing (with the Temperature Doors)
  30. Center Vent Adjustment Motor -V102-
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