Rondell alloys on A8

Hi there,

I'm trying to find out whether Rondell alloys can be put on my A8 3.7 Quattro (modelyear 2000). These are Rondell Design 52 and I plan to put wintertires (225/55-17) on them soon. Will this combination fit under my A8? In a TÜV report, it is mentioned that Freigängigkeit or something like that can be effected through nacharbeiten der Innenkottflugel. Is this really necessary? If so, is it difficult to do? Does any one here have Rondell Design 52 fit under an A8?

Details Rondell:
8x17
ET value: 35
5x112
Tires: Continental TS 810 225-55-R17

thanks and regards
Robert :)