One more time on the subject of removing the rod from the vaccum
assist unit to eliminate the tapping noise...
My 88 90Q has the vaccum assist unit. The tapping has become
progressively worse over the two years I've owned the car.
This week my mechanic recommended removing the rod. He tells me that
the unit only provides vacuum at idle, and that there is sufficient
vacuum without it. He has done this mod on 4 audi's with good
Something no one has mentioned - the mechanic tells me that metal
fragments from the rod could come loose and cause major damage.
Any other comments or recommendations from the net?