1. Drain the ATF. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT.)
Caution
2. Remove the drive shaft. (See DRIVE SHAFT REMOVAL/INSTALLATION.)
3. Remove the oil seal.
4. Using the SST
and a hammer, tap a new oil seal in evenly until the SST
contacts the transaxle case.

5. Coat the lip of the oil seal with transaxle oil.
6. Install the drive shaft. (See DRIVE SHAFT REMOVAL/INSTALLATION.)
7. Add ATF to the specified level. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT.)
8. Carry out the mechanical system test. (See MECHANICAL SYSTEM TEST.)
Automatic transaxle removal/installation
Control valve body removalMazda 6 Service Manual: Rear window glass removal
1. For the 4SD, remove the following parts:
(1) Remove the headliner.
(2) Remove the rear package trim.
2. For the 5HB, remove the following parts.
(1) Remove the rear wiper arm and blade.
(2) Remove the liftgate lower trim.
3. Apply protective tape along the edge of the body to pr ...
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 stra ...