Mazda 6 Service Manual: Heater core inspection

Mazda 6 Service Manual / Heater and air conditioner systems / Basic system / Heater core inspection

1. Remove the A/C unit. (See A/C UNIT REMOVAL/INSTALLATION.)

2. Remove the heater core from the A/C unit.

3. Inspect for cracks, damage, and coolant leakage.

If any problems are found, replace the heater core.

4. Inspect for bent fins.

If any are bent, use a flathead screwdriver to straighten them.

5. Verify that the heater core inlet and outlet pipe are not distorted or damaged.

Repair with pliers if necessary.

Evaporator inspection

1. Remove the A/C unit. (See A/C UNIT REMOVAL/INSTALLATION.) 2. Remove the evaporator from the A/C unit. 3. Inspect for cracks, damage, and oil leakage. If any problems are found, replace the ev ...

Rear heat duct removal/installation

1. Turn over the front floor covering. (See FRONT FLOOR COVERING REMOVAL/INSTALLATION.) 2. Remove in the order indicated in the table. 3. Install in the reverse order of removal. ...

Other materials:

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Mazda 6 Service Manual: Condenser removal/installation
4SD 1. Disconnect the negative battery cable. 2. Remove the rear package trim. 3. Remove in the order indicated in the table. 4. Install in the reverse order of removal. 5HB 1. Disconnect the negative battery cable. 2. Remove the liftgate lower trim. 3. Remove in the order indicated in t ...