Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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.