So it's wet outside and stuck inside with my son whos sleeping so thought I would find out what all the part numbers mean on the Audi invoices I got with my A4. Few weird ones like washer jet covers being bought even though it doesn't have them? Most are basic bits and bobs but includes the towbar and parking sensors. But anyways I bought it with what I later found out to be RS6 reps, the spare is some random 5 spoke 17" yet on the Audi service they mention the spare is 17" when it should be 18"!? The part number in question is 8E0 601 165H 7ZJ Thanks in advance.