for some reason my audi has a wobbly idle, especially when ive been driving and i dip the clutch. the idle is slightly rough but it does dip below the 1k mark to about 700rpm then sort of bounces up and down.. has anyone got a suggestion of what this could be? ive just replaced the ignition system, but im thinking a vacuum leak? i cant see anything obvious, ive looked and anything without a jubilee clip etc ive replaced. just unsure of what to do next.. i did see a post from audi regarding the ADP engine and a small hose from the throttlebody to the inlet causing this, but i cleaned it up and fitted new clips and it didnt rectify it.