Removing Heater/Air-Conditioning Unit

Information 

The heat exchanger connection must be closed off using suitable stoppers after disconnecting the coolant hoses.

Information 

• Line the driver's footwell with very absorbent material  .
  Fig 1: Identifying Heater/Air-Conditioning Unit Installation Position

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1. Unscrew and remove two fastening screws -1-  on the cover on the coolant lines.
   Fig 2: Identifying Coolant Lines Cover And Fasteners

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2. Remove cover for coolant lines.
3. Release electric plug connection for the servo motors at the heater/air-conditioning unit -a-  and disconnect it -arrow-  .
   Fig 3: Pulling Off Connector For Servo Motors

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4. Pull the retaining clips -2-  on the coolant supply line and return line downwards -arrow A-  .
   Fig 4: Pulling Off Retaining Clips On Coolant Lines

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5. Pull the interior carpet away from the coolant lines and place a suitable collecting container in position.
6. Carefully pull the coolant lines out of the heat exchanger -arrow B-  and drain the coolant into the collecting container.
7. Release the clamp -3-  and pull the water drain hose off the heater/air-conditioning unit.
   Fig 5: Pulling Off Water Drain Hose

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8. Disconnect the center air vents for the footwell and slide them onto the heater/air-conditioning unit. → 805519 REMOVING AND INSTALLING FRONT FOOTWELL OUTLET VENT
9. Unclip main wire harness and cable duct at the heater/air-conditioning unit at the left and right -arrows-  .
   Fig 6: Identifying Main Wire Harness

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10. Grasp the heater/air-conditioning unit at the left and right, pull it backwards and remove completely.