I would assume that in order to remove the filter to 1st drain the housing by removing the little cap bolt on the bottom of the filter cover/housing (the black plastic bit), if so then all is ok as mine decided to strip the corners off inside the cap, seems like its made of ally too, if this bolt is used for another reason I would appreciate it if you could let me know as I cannot find anything on my CD workshop manual..... and you would have thought everything would be on it....
Cheers



