realize this is probably a common question on here and have checked through the search results but nothing matches my problem that i can see.
i have an 97 a4 avant with a knocking sound coming from the front end somewhere .
it occurs mostly when braking but also on certain pot holes or bumps and sometimes when changing gear .
i can make the knock by tapping the brake pedal whilst the car is slowly moving,it always knocks twice ,once for brake on and again for brake off.
ive had a good look at the front suspension and tried all the joints and bushes with a pry bar and cant detect any excessive movement or wear,ive also changed one of the engine mounts as this seemed weak but its still there and is slowly getting louder and more frequent .
i dont want to start replacing parts on a trial and error basis because it could get very expensive but im kinda hating driving the car because of it and need to get it sorted before something drops off .
i was thinking it could be subframe related as it seems to be coming from under my feet but again theres no obvious wear on the bushes.
any help sorting this would be greatly appreciated as someone must have had a similar problem in the past.