Heating and Ventilation System, Assembly

Heating and Ventilation System, Assembly







CAUTION:
Before beginning repairs on the electrical system:
- Obtain the anti-theft radio security code.
- Switch off all electrical consumers.
- Switch off ignition and remove ignition key.
- Disconnect negative ( - ) battery terminal.
- When disconnecting and reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks as specified.

1. Heating and ventilation controls
- With fresh air blower switch -E9- and switch for fresh air blower and recirculating air -E184-
- Installing and adjusting cables
2. Dust and pollen filter
3. Side window air outlet
4. Side air outlets
5. Center air outlet console
6. Instrument panel cross member
7. Servo motor for fresh/recirculating air door -V154-
8. Fresh air blower -V2-
- See Fig 4.
9. Fresh air blower series resistance with fuse -N24-
- Fresh air blower -V2-, removing See Fig 4.
10. Intermediate duct
11. Cables
12. Rear footwell air outlet duct
13. Gasket
14. Connecting duct
- With front footwell air outlet
15. Heating and ventilation unit
- Removing:
- Remove instrument panel
- Carefully pinch off both coolant hoses to heater core and disconnect hoses.
- Loosen instrument panel cross member See Fig. 5
- Remove unit
16. Heater core
- Always use new coolant after replacement
17. Heater core/bulkhead seal
- Note installation position See Fig. 2
18. Defroster duct
- Replacing:
- Remove instrument panel
- Loosen instrument panel cross member See Fig. 5
19. Instrument panel
20. Center air outlet duct
21. Defroster air outlet panel

Fig. 4 Fresh air blower -V2-, removing







1. Heating and ventilation unit
2. Fresh air blower -V2-
3. Cover
4. Screws
5. Fresh air blower series resistance with fuse -N24-

Removing
- Remove glove box.
- Remove screws -4- and remove cover -3-.
- Remove cover containing series resistor -5- and disconnect electrical connector.
- Disconnect electrical connector from fresh air blower -2-.
- Remove fresh air blower series resistor -5-.
- Pull fresh air blower out downwards.

Fig. 5 Instrument panel cross member, loosening and tightening







- Remove securing bolts -arrows-.
- Tightening torque 25 Nm (18 ft lb)

To access or remove heating and ventilation unit, lift cross member in direction of -arrow A- and support.

NOTE:
- To prevent damage to the steering column, work should be done with aid of another technician.
- If removed component(s) are not to be re-installed immediately, secure the cross member to the bulkhead.
- Any wiring harnesses released from their retainers must be secured again at the same point, using the same method of securing.

Connecting duct, removing







1. Bolt
2. Connecting duct
3. Rear duct
4. Retainer
5. Cover
6. Bolt

First do the following:
- Remove glove box.
- Remove steering column trim.
- Remove center air outlet console.
- Remove center console.

Removing







- Remove retainer -4-.
- Remove cover -5-.
- Pull connecting piece out towards the driver's side footwell -arrow A-.