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.
4. Inspect for bent fins.
Expansion valve removal/installation
Heater core inspectionMazda 6 Service Manual: Oil pressure switch inspection
1. Verify that the oil pressure warning light illuminates when the ignition
switch is at ON position.
2. Verify that the oil pressure warning light goes off when the engine is
started.
If the oil pressure warning light does not illuminate or remains
illuminated, inspect the related wirin ...
Mazda 6 Service Manual: Aluminum Wheel Maintenance
A protective coating is provided over the aluminum wheels. Special care is needed
to protect this coating.
CAUTION
Do not use any detergent other than mild detergent. Before using any detergent,
verify the ingredients. Otherwise, the product could discolor or stain the aluminum
wheels.
NOTE ...