Heater Unit / Boost Ventilation Removal and Installation (M13A Model)
1) Disconnect negative (–) cable at battery.
2) If equipped with air bag system, disable air bag system referring to Disabling Air Bag System .
3) Drain engine coolant and disconnect water hoses (1) from heater unit.
4) Remove instrument panel.
5) Remove bolts, nuts and screws as shown in figure.
6) Remove heater unit (1).
Install heater unit by reversing removal procedure, noting the following items.
When installing each part, be careful not to catch any cable or wiring harness.
Adjust control cables by referring to Heater Control Lever Assembly Removal and Installation .
Fill engine coolant to radiator.
If equipped with air bag system, enable air bag system referring to Enabling Air Bag System .
When the heater unit is disassembled and reassembled, locking force of the heater case lock may reduce. In such a case, tighten the heater case withe a tapping screw of M4 x L16 (1) as shown in the figure, or air may leak from its joint section.