Changed front arm controller bushes but still squeaking

[Neesh]

Changed my front controller arm bushes because car was squeaking and spongey on the bumps,changed my front arm bushes spongeyness gone but the irritating squeaking noise is still there when you go over uneven road surfaces,what is It?Definately not the seats.

Another issue is after pressing the accelearator and leaving it the car judders and vibrates violently whats causing this?

 

[Neesh]

its a pre-facelift A3 1.8T(150HP)

 

[JD09]

Squeaky over bumps sounds like shocks to me.

 

[Welly]

Another issue is after pressing the accelearator and leaving it the car judders and vibrates violently whats causing this?

OK, that's an odd one. Sounds almost like a misfire on over run.

Can you try and describe the problem in a bit more detail?