Mazdaspeed6 L4-2.3L Turbo (2006)
Heater Core: Testing and Inspection
HEATER CORE INSPECTION
1. Remove the heater core from the A/C unit.
2. Inspect for cracks, damage, and coolant leakage.
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If any problems are found, replace the heater core.
3. Inspect for bent fins.
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If any are bent, use a flathead screwdriver to straighten them.
4. Verify that the heater core inlet and outlet pipes are not distorted or damaged.
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Repair with pliers if necessary.
