Heating and Ventilation Unit, Assembly

Heating and Ventilation Unit, Assembly







1. Heater core
- Always use new coolant after replacement
- Removing:
- Remove instrument panel.
- Loosen Instrument panel cross member See Fig. 5

WARNING: The cooling system is pressurized when the engine is warm. Wear gloves and other protection and carefully release system pressure if necessary, before performing repairs.

- Carefully pinch off both coolant hoses to heater core and disconnect hoses.
- Partially remove heating and ventilation unit.
- Press retainer clips and remove heater core.

2. Self-tapping screw
- Use if retainer clips break
3. Air distribution housing
4. Servo motor for fresh/recirculating air door -V154-
5. Self-tapping screw
6. Fresh air blower -V2-
- Removing See Fig. 4
7. Cover
8. Self-tapping screw
9. Series resistor -N24-
- Removing See Fig. 4.
10. Self-tapping screw
11. Central flap lever
- Installing and adjusting See Fig. 1
12. Temperature flap lever
13. Base plate
14. Heater core bulkhead seal
- Note installation position
- Installing See Fig. 2

Fig. 1 Central flap lever, installing and adjusting







The central flap pinion has an adjustment mark.
- Install the lever so that the notches on the lever and the pinion align -arrows-.

Fig. 2 Heater core bulkhead seal, installation position







The seal between the heater core and the bulkhead has a positioning mark.
- Install the seal -1- so that the notches on the seal and the base plate -2- align -3-.

Servo motor for fresh/recirculating air door -V154-, removing and installing

Removing
- Remove glove box.







- Disconnect electrical connector -1-.
- Remove screw -3-.
- Swing motor -2- downwards.
- Disconnect motor -2- from fresh air/recirculating air door lever.

Installing
Replacement motors are supplied with operating levers in the "recirculating air" position. To ease installation, first do the following:







- Attach electrical connector -1- to flap motor -2-.
- Switch on ignition.
- Operate button for fresh air/recirculating air and observe lever position.
- When the center position is reached, quickly disconnect the electrical connector.







- Insert motor onto the fresh air/recirculating air shaft -1-.

NOTE: If it is difficult to align and fit the motor to shaft -1-, remove fresh air blower -V2-, See Fig. 4 and position flap/shaft as required.

- Turn motor in direction of -arrow A-.
- Install mounting screw.
- Reconnect electrical connector.