Heating and Ventilation System, Servicing

CAUTION!
- Before working on the electrical system, obtain radio security code and disconnect battery Ground (GND) strap.
- When reconnecting battery, always check operation of vehicle equipment such as radio, clock, and power windows





1 - Heating and ventilation controls
- With fresh air blower switch -E9-
- With switch for fresh air blower and recirculating air -E184-
- Removing and installing refer to "Control Assembly Removing and Installing/Heating and Ventilation Controls". Service and Repair
- Assembly refer to "Heating and Ventilation Controls, Assembly". Description and Operation
- Installing and adjusting cables refer to "Control Cables, Installing and Adjusting/Heating and Ventilation Cables". Service and Repair

2 - Dust and pollen filter
- Removing and installing refer to "Dust and Pollen Filter, Removing and Installing". Service and Repair

3 - Side window air outlet
- Removing refer to "Air Outlets, Removing". Service and Repair

4 - Side air outlets
- Removing refer to "Air Outlets, Removing". Service and Repair

5 - Center air outlet console
- Removing refer to "Air Outlets, Removing". Service and Repair

6 - Instrument panel cross member
- Loosening and tightening see Fig. 2 below.

7 - Servo motor for fresh/recirculating air door -V154-
- Removing and installing refer to "Heating and Ventilation Unit, Disassembly and Assembly". Procedures

8 - Fresh air blower -V2-
- Removing see Fig. 1 below.

9 - Fresh air blower series resistance with fuse -N24-
- Removing see Fig. 1 below, Fresh air blower -V2-, removing.

10 - Intermediate duct

11 - Cables
- Installing and adjusting refer to "Control Cables, Installing and Adjusting/Heating and Ventilation Cables". Service and Repair

12 - Rear footwell air outlet duct

13 - Gasket

14 - Connecting duct
- With front footwell air outlet
- Removing see below.

15 - Heating and ventilation unit
- Removing:
- Remove instrument panel
See Instrument panel, removing and installing. Service and Repair
- Carefully pinch off both coolant hoses to heater core and disconnect hoses.
- Loosen instrument panel cross member see Fig. 2 below.
- Remove unit
- Disassembly and assembly refer to "Heating and Ventilation Unit, Disassembly and Assembly". Procedures

16 - Heater core
- Always use new coolant after replacement
- Replacing refer to "Heating and Ventilation Unit, Disassembly and Assembly". Procedures

17 - Heater core/bulkhead seal
- Note installation position see Fig. 2 in "Heating and Ventilation Unit, Disassembly and Assembly". Procedures

18 - Defroster duct
- Replacing:
- Remove instrument panel
See Instrument panel, removing and installing. Service and Repair
- Loosen instrument panel cross member see Fig. 2 below.

19 - Instrument panel
- Removing and installing
See Instrument panel, removing and installing. Service and Repair

20 - Center air outlet duct

21 - Defroster air outlet panel
- Removing refer to "Defroster Air Outlet Panel, Removing". Service and Repair





Fig.1 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 glovebox.
See Glove box, removing. Service and Repair
- 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. 2 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.

NOTES:
- To prevent damage to the steering column, work should he 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.
See Repair Glove box, removing. Service and Repair
- Remove steering column trim
See Steering column trim, removing.
- Remove center air outlet console refer to "Air Outlets, Removing". Service and Repair
- Remove center console.
See Center console, removing. Service and Repair

Removing

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