A4 2.8 quattro vibration question

[A4 quattro]

Hi,
I have recently bought a B5 2.8 quattro (99) and have noticed a sight vibration on the steering on full lock or just upto full lock (when moving forward ie when parking etc). Is this normal on quattros? or is there something that needs checking?
Any advice would be appreciated.
Many Thanks

 

[olds_kool]

possibly power steering belt slipping, any slight squeeling to go with it?, not sure if 2.8's have sperate belt or serpentine jobby but thats first thing id check

 

[A4 quattro]

Thank you for the suggestion, will get it checked, however no squeeling noises.