Periodically does not include the first transfer to Mazda 6 I with a mechanical PPC

The reason that the first generation of the first generation of Mazda 6 began to be turned on bad or switched off at all may be:

1. The need to replace the transmission synchronizer. In this case, crunching or cracking may be heard.
2. There's air in the clutch system. If, after re-clicking on the clutch, the gear is switched on easily, the system needs to be swayed.
3. A clutch discus is necessary to replace it.
4. The engine crankcase is protected and the gearbox is heated in hot weather. With such a problem, the owners of the "gears" face quite often. If the transmission is overheating, the protection is better to be removed.