Afternoon All
Great news, took the day off to get the A8 sorted and we now have air suspension again. Although it cost me £960 in the end for the unit, which was a tad cheaper than the local Audi happies. I just couldn't bring myself to take a chance on a used one or one which might not fit properly, and then be faced with doing it all again. This has a two year warranty and was from a main dealer. All they managed to do wrong was post in on a 48 hour delivery rather than a 24 hour one which meant I have had to do it during the week as it didn't arrived for this last weekend.
My car is now 4 years old and has covered just under 70K when the pump packed up. All FASH if that matters

The old one did have a "burnt" smell about it which confirmed to me it was sh*gged!
I have just test driven the car and all seems well no noise just smooth suspension again.
I have taken some photo's of the work and what required so if anyone's interested I will post them up to assist anyone else facing the same problem.
Big Big thanks to Bex who was a diamond and actually spurred me on to do this myself rather than shell out another £400 for the dealer to have a go.
No really special tools required and just a bit of thought and patience. There are a well built car and don't seem to fight being taken apart like some cars I have had.
Down side of this is that I have discovered the inside edge of the front tyres is b*ggered and I now need new rubber earlier than I had thought. Oh and the four wheel alignment too as it's obviously way out

And Mrs C just told me I need to pay for the holiday

Cheers
Glyn