Sadly yes, but hey, no one said I won't come back when I'm sorted :D
As can not edit, new link with very discounted price: https://www.gumtree.com/p/audi/225whp-audi-a3-05-manual-20tdi-5-door/1390023975
So for sale is my Audi A3 as per title, I will copy paste eBay ad as there is basically all about car, as honest as I can go, you can see as well thread in A3 8P forum: Hi from Coventry
Please rather send me message via eBay as rarely got time to log in here (sadly).
Ad on eBay: Click here
check your brake lines as it's clearly some metal sound, can be bushes worn out, springs tend to snaps on back, brake disc shield hit by rock that deformed and scratching on rim or even not tightened enough wheel bolts that came loose. IMHO just lift it and check with visually, flat head screw...
problem is pvc and it bad, you need to check your engine ASAP, I know some tfsi got serious problem with that (on forum there was someone that failed even the MOT on emissions test and went to audi dealership to solve that) , I would start to check the breather situation, in worst case could be...