Heater Core: Service and Repair

Heater Matrix

Removal
1. Drain radiator coolant only.
2. Remove instrument panel for access.







3. Remove driver footwell duct.
- Remove screw.
- Remove duct.







4. Disconnect cool air bypass servo motor connector and heater matrix pipes.
1. Disconnect connector.


NOTE: Position suitable cloth to absorb coolant leakage before disconnecting pipes.


2. Remove screws and retaining brackets.
3. Remove screws and matrix clamps.


NOTE: Discard O-ring seals from pipes; fit suitable blanking plugs.


- Detach pipes from matrix.







5. Remove heater matrix from heater/cooler assembly.
1. Remove screw.
2. Remove retaining plate.
- Reposition instrument panel support bracket to permit removal of heater matrix (RHD only).
3. Remove heater matrix.

Installation


1. NOTE: Lubricate and install new O-ring seals.


Installation is the reverse of removal procedure.