Removing Heating/Fresh Air Unit

Information 

• Make sure not to damage the insulation of the main wiring harness. 
  Fig 1: Identifying Heating/Fresh Air Unit Installation Position Shown On 911

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1. Immediately seal the openings of air-conditioning lines with suitable plugs.
2. Unscrew fastening screw -1-  for refrigerant line -C-  and open the pressure line.
   Fig 2: Opening Pressure Line

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3. Unscrew fastening screws -2-  and remove expansion valve. → Removing expansion valve
   Fig 3: Removing Expansion Valve

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4. Unscrew the fastening nuts -6-  for the heater/air-conditioning unit in the area of the plenum panel/firewall.
   Fig 4: Fastening Nuts For Heater/Air-Conditioning Unit

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5. Unscrew fastening screw -3-  for securing holder of the heater/air-conditioning unit to right side of dashboard bracket (next to A-pillar).
   Fig 5: Fastening Screw To Dashboard Bracket

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6. Unscrew fastening screw -4-  for securing heater/air-conditioning unit to right side of dashboard bracket (passenger's side).
   Fig 6: Fastening Screw To Dashboard Bracket

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7. Unscrew the two fastening screws -5-  for dashboard bracket to right side of body.
   Fig 7: Fastening Screws On Dashboard Bracket

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8. Unclip holder for electric harness with a screwdriver from right side of dashboard bracket.
   Fig 8: Unclipping Wire Harness At Dashboard Bracket

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9. Now pull dashboard bracket a few centimetres forward on the right side.
   Fig 9: Pulling Dashboard Bracket Forward

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10. Pull out cotter pin -A-  for holder of the heater/air-conditioning unit.
    Fig 10: Removing Cotter Pin

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11. Turn holder -B-  for heater/air-conditioning unit by 90° and pull up and out.
    Fig 11: Pulling Out Holder

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12. Lay down the air conditioner, release clamp for water drain hose -C-  and pull off the water drain hose from the heater/air-conditioning unit.
    Fig 12: Pulling Off Water Drain Hose

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13. Carefully lift heater/air-conditioning unit forward with a screwdriver under the right side of the dashboard bracket.
    Fig 13: Lifting Heater/Air-Conditioning Unit Forward Under Dashboard Bracket

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14. Release lower plug connection on heater/air-conditioning unit -a-  and unplug.
    Fig 14: Releasing Electric Plug Connection

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15. Release upper plug connection on heater/air-conditioning unit -a-  and unplug.
    Fig 15: Releasing Electric Plug Connection

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16. Cut tie-wraps of electric line (vehicle wire harness to heater/air-conditioning unit wire harness) with side cutters. Remove vehicle wire harness.
    Fig 16: Identifying Cutting Tie-Wraps

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17. Pull air conditioner forward on the right side, unscrew fastening screw -7-  for B+ line holder and remove holder for heater/air-conditioning unit.
    Fig 17: Removing Holder For B+ Line

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18. Pull/push heater/air-conditioning unit as far as possible in direction of passenger's seat.
    Fig 18: Pulling Out Heater/Air-Conditioning Unit

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19. Remove heater/air-conditioning unit from passenger compartment via passenger's door.
    Fig 19: Removing Heating/Air-Conditioning Unit

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