Update ! I've took the air con clutch off to measure the offending bearing, it was noisy and felt slightly rough when spun round. Anyway if anyone wants to save a few quid and do a bearing swap rather than changing the whole ac pump, here are the details. Its a 30mm x 52mm x 22mm...

Thanks for the link I'll give em a try :)

Oh good so they must exist then !, ive been looking on the web with no luck so far. Good idea I will try a few places. Was yours for a d2 ?

Thanks I might take you up on that, I'm going to take the ac clutch off the weekend and measure the bearing and see if I can get one from a bearing specialist. If I'm not successful I'll be in touch !

Hi thanks for replying, I know its done on lots of other ac compressors but just can't track down the bearing for this one. Ive searched the web and and it seems it's everybody else apart from mine !

Hi everyone I hope someone can help ? Ive been doing a lot of deep wading recently and my air conditioning clutch bearing has had enough ! Im having trouble finding just the bearing to replace, can anyone advise me to where I could get one from ? Im driving a td5 d2 my2002 Thanks...