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Heater Core: Service and Repair



Service repair no - 80.20.29

Remove
1. Remove heater unit. Service and Repair
2. Remove 2 screws securing duct to RH side of heater. Remove duct.





3. Remove screw securing heater pipe bracket.





4. Remove 2 screws securing RH servo to heater casing. Remove servo.
5. Release 2 clips securing matrix to heater. Remove matrix and pipe assembly.

NOTE: Matrix has provision for 2 screws in the event that the retaining clips break.

6. Remove 2 screws securing pipes to matrix. Remove pipe assembly.
7. Remove and discard 'O' rings from pipe assembly.

Refit
8. Lubricate new 'O' rings with anti freeze. Fit to pipes.
9. Reverse removal procedure.