[V8] Distributor rotor button p/number?

[pdlord at talent.com.au]

So the mechanic repairing my steering rack has broken one of the distributor
rotors...

He says he will ring Audi tomorrow to see about a replacement. I have just
checked ETKA and the rotor button is not available as a seperate part... hmmm,
I've heard that the dist cap is the same as the Golf GTI 16V 1.8-litre, can
anyone confirm it also an interchangable application for the rotor button?

Can anyone also tell me a Bosch p/number for the rotor button and also if the
rotor button is glued on on the V8?