Overhaul

1. Remove the two self-tapping screws and the heater core cover.
2. Pull out the grommet from the heater core pipes.
3. Remove the self-tapping screw and the clamp.
4. Pull out the heater core from the heater unit.

NOTE: Be careful not to bend the inlet and outlet pipes during heater core removal.

5. Assemble in the reverse order of disassembly.