Removing and installing heater housing

AR83.20-D-3200A

Removing and installing heater housing

11.6.96



Removal, installation

1

Remove instrument cluster

AR54.30-D-6015B

2

Remove top section of instrument panel

AR68.10-D-1020A

3

Unscrew screw (2) and remove fuse and relay box (1) with bearing pin (4) from mounting frame (5)

 Installation:
Ensure that rubber mount (3) is properly seated in mounting frame.

4

Pull fuse and relay box forward

 Protect cable insulation against damage on edges.

5

Loosen mounting frame

6

Pull ventilation ducts for windshield (7) off of heater housing

7

Pull ventilation hoses to side window nozzles (8) off of heater housing

8

Unscrew screws (9) for ventilation shafts (10) to footwell

9

Unclip fresh air flap control cables (11) from control cable guides (12)

10

Unhook fresh air flap control cables from fresh air/recirculated air selection switch (13)

11

Disconnect electrical connector (14)

 Danger!

Risk of injury to skin and eyes from scalding from hot coolant which splashes out..Risk of poisoning from swallowing coolant.

Do not open the cooling system unless the coolant temperature is below 90 °C. Open cap slowly and allow the pressure to release.

Do not pour coolant into containers for drinks.

Wear protective gloves, protective clothes, and eye protection.

AS20.00-Z-0001-01A

12

Release pressure in coolant circuit

13

Partially drain coolant

 Catch draining coolant in clean vessel.

 Installation:

Add coolant drained to coolant circuit after installing heater.
Check coolant level and add coolant if too low. Check leakage at appropriate coolant hose connections.

14

Loosen hose clamps (15) on coolant
hoses (16)

15

Pull coolant hoses off of line fittings (17)

16

Unscrew screws (18)

17

Remove heater housing (19) together with vent shafts to footwell

 Plug line fittings to keep coolant from running out.

18

Reinstall in opposite order

19

Check for proper function