REAR OIL SEAL REPLACEMENT
1. Remove the flywheel. (MTX) (See CLUTCH UNIT REMOVAL/INSTALLATION)
2. Remove the drive plate. (ATX) (See DRIVE PLATE REMOVAL/INSTALLATION)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.


Rear Oil Seal Installation Note
1. Apply silicone sealant to the mating faces as shown.
Dot diameter:
4.0-6.0 mm {0.16-0.23 in}

2. Apply clean engine oil to the new oil seal lip.
3. Install the rear oil seal using the installer as shown.

4. Tighten the rear oil seal bolts in the order as shown.
Tightening torque: 8.0-11.5 N·m {81.6-117.2 kgf·m, 70.9-101.7 in·lbf}

Front oil seal
EngineMazda 6 Service Manual: Dtc clearing procedure
1. Start the on-board diagnostic test mode.
2. First press the POWER button, then simultaneously press AUDIO CONT button
for 2 seconds or more.
Caution
Before clearing the DTCs, be sure to enter all of them displayed
in the on-board diagnostic test mode in the Audio Repair Order Form. ...
Mazda 6 Service Manual: Scheduled Maintenance (U.S.A., Canada, and Puerto Rico)
Follow Schedule 1 if the vehicle is operated mainly where none of the following
conditions (severe driving conditions) apply.
Repeated short-distance driving
Driving in dusty conditions
Driving with extended use of brakes
Driving in areas where salt or other corrosive materials are used
...