It is in the rear on the drivers side in the well behind the wheel.
I has a transparent reservoir with marks on it.
You fill it with Pentosin CHF hydraulic fluid ( same as power steering ).
There is a brass nut in the side, use a turkey baster syringe with some plastic tubing.
Get the top tool here :
https://www.eeuroparts.com/Parts/758...waAm3REALw_wcB