Mazda 6 Service Manual: Dtc p0327

Dtc p0301, p0302, p0303, p0304

Dtc p0328

Other materials:

Mazda 6 Service Manual: Manual Transaxle Shift Pattern
  The shift pattern of the transaxle is conventional, as shown. Depress the clutch pedal all the way down while shifting; then release it slowly. Your vehicle is equipped with a device to prevent shifting to R (reverse) by mistake. Push the shift lever downward and shift to R.   ...

Mazda 6 Service Manual: Oil seal (differential) replacement
1. On level ground, jack up the vehicle and support it evenly on safety stands. 2. Drain the oil from the transaxle. 3. Remove the front wheels and splash shields. 4. Separate the drive shaft and joint shaft from the transaxle. (See DRIVE SHAFT REMOVAL/INSTALLATION.) (See JOINT SHAFT REMOVAL/ ...