doser died

[e46er]

i have a twin aqua medic doser and up until now it has worked flawlessly

one of the pumps completely stopped working i took the cover off and the plastic part that holds the rollers to move the hose broke in my hnds and it appears the shaft isnt spinning either.

can i buy a replacement pump that will go into the full head unit or am i screwed and will require a new dosing unit?


oh and it is probably 3 years old so im assuming its out of warrenty
cheers Kent