Having recently found this wealth of knowledge on the e32, I have started to rebuild the car that a mechanic suggested I should donate for the tax write off(yeh right). Thank you all. Using Gale's instructions I decide to remove the sword and change the microfilter. Everything was going smoothly, and the sword came out easily, but then I discovered there is no microfilter or cover. Could it be that someone removed it and just didn't bother to replace? Also my sword was attached with regular philips head screws,evidence that someone has been thre before. Please help I've had this 88 735iL car for seven years,and have 180k miles on it,and I want to give it a new lease on life.