HI folks, im a bit stuck with my air filter 1.9 jtd 04, ive been doing few bits of servicing myself, when I tried to get the old air filter off only one bolt would come out of the 3,(rusted and been in many years I suspect) I have done more than 12 k since I bought it and it will need changing, my usual mechanic said he couldnt shift them either but could drill them out, anybody ever done this?, be very grateful for any help. Neil.