Hi all,looking for some advice, my wife's a4 had started juddering when pulling away in 1st gear then stopped doing it for about a week then came back again and weirdly today it didn't do it,do you think this could be air in the sytem/contaminated fluid or something more serious, apart from this clutch feels perfect,thanks again.

Hello Gordon, 

It could be either of your options, but I doubt it.

Possibly contaminated clutch plate - engine oil or clutch fluid, or the start of the failure of the clutch slave cylinder etc.  but worth getting gearbox and engine mountings checked. 

You could try:- in a safe place, and with no forward obstructions , put the car in second gear and bring the clutch pedal up slowly until you just reach the bite point. Hold revs at say a steady 1500rpm and depress and gently release the clutch pedal just in and out of the bite point. Keep doing that for a couple to three minutes and see if that results in any (temporary?) imprevement. 
Kind rergards,

Gareth. 

Cheers mate ,really hope it's not the clutch/flywheel or something else on the way out 👍

Please let us know if it makes any improvement Gordon. 
Good luck,

Gareth. 

Hi, did you find the solution to this problem? 

Nope car is still running fine ,sometimes does it then it just stops doing it ,so she has learned to live with it lol