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2002 Subaru Impreza Heater Case Removal

The Subaru Impreza is a compact car that has been in production since 1993. The 2002 model belongs to the second generation of this series, which includes the 2002 through 2007 Imprezas. The heater case in the 2002 Impreza contains the heater core, which is a radiator containing coolant. Hot coolant from the engine circulates through the heater core, heating the cars interior. The procedure for removing the heater case is the same for all Imprezas made from 1998 to 2005.

Instructions

1

Disconnect the cable from the negative battery terminal with a socket wrench to prevent the engine from starting during the heater case removal. Wait 10 minutes before proceeding to prevent your vehicles airbag from accidentally deploying.

2

Place a container below the radiator, and remove the drain plug for the radiator with a socket wrench. Allow the coolant to drain from the radiator into the container, and store the coolant for later use. Replace the drain plug for the radiator.

3

Detach the hoses from the heater core, and plug the open ends of the hoses with shop rags. Remove the radio console from the dashboard with a socket wrench to provide clearance for the heater case. Disconnect the cup holder.

4

Turn the boot for the shift lever over if your car has a manual transmission. Remove the upper cover for the select lever if your car has an automatic transmission. Detach the cover for the console with a socket wrench, and disconnect the audio assembly from the console. Detach the cable and electrical connectors for the antenna.

5

Disconnect the lower cover for the console with a socket wrench, and detach the electrical connector for the seat belt timer. Remove the glove compartment and the console for the instrument panel.

6

Remove the mounting bolts for the steering column with a socket wrench, and lower the column to the floor of the vehicle. Detach the cover for the steering column, and disconnect the opening lever for the hood. Turn the switch for the temperature control to the coldest setting, and set the mode selector switch to the defroster setting. Remove the cables for the mode selector and temperature control switches.

7

Detach the electrical connectors for the instrument panel. Disconnect the retaining bolts on the instrument panel and the grill for the front defroster with a socket wrench. Remove the instrument panel from the vehicle, and detach the cable for the speedometer from the combination meter.

8

Detach the cables for the heater control, and disconnect the electrical wiring harness from the fan motor. Remove the air duct between the blower and heater with a socket wrench. Lift the heater case up and out to remove it from the vehicle.