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.
4. Inspect for bent fins.
5. Verify that the heater core inlet and outlet pipe are not distorted or damaged.
Evaporator inspection
Rear heat duct removal/installationMazda 6 Service Manual: Liftgate adjustment
1. Measure the gap and height between the liftgate and the body.
2. If not as specified, loosen the liftgate hinge installation bolts or the
liftgate striker installation screws, and reposition the liftgate.
Clearance
a: 3.0-7.0 mm {0.12-0.28 in}
b: -1.0-3.4 mm {-0.04-013 in}
c: 2.8-5.2 mm ...
Mazda 6 Service Manual: Oil pump
OIL PUMP REMOVAL/INSTALLATION
1. Disconnect the negative battery cable.
2. Drain the engine oil. (See ENGINE OIL REPLACEMENT.)
3. Remove the oil pan. (See OIL PAN REMOVAL/INSTALLATION.)
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.
6. Inspect the en ...