Mazda 6 Service Manual: 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:
Mazda 6 Service Manual: Intermittent concern troubleshooting
Vibration Method
1. If malfunction occurs or becomes worse while driving on a rough road or
when engine is vibrating, perform the steps below.
Note
There are several reasons vehicle or engine vibration could cause
an electrical malfunction. Some of the things to check for are:
...
Mazda 6 Service Manual: Cowl panel removal/installation
1. Remove the windshield wiper arm and blade. (See WINDSHIELD WIPER ARM AND
BLADE REMOVAL/INSTALLATION.)
2. Remove the cowl grille.
3. Remove the windshield wiper motor. (See WINDSHIELD WIPER MOTOR
REMOVAL/INSTALLATION.)
4. Remove in the order indicated in the table.
5. Install in the re ...