[turbored]

it's to purge air bubbles from the system. to translate the diagram:

????????????????????CAP = Depending on car model to the engine air removal hole or Plug cap

???????????= Filler Plug Cap
?????= Radiator
??????????Radiator cap
?????????Breather Tank
????????Reservoir Tank
????????????????????Radiator hose attachment (sold seperately)

HTH.

 

[turbored]

dammit this board won't take my japanese input.
anyways, the translations are top to bottom, left to right.