Taking the year and model into consideration, I would suspect the vacuum actuators. Couple of them are easy to get to, a couple of them, not. You will want to check behind your glovebox....there are a couple of them there. Hope you have small hands.

__________________
It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D