I just bought my first A4 3.0 TDI B8 three months ago (had an A3 before). I noticed a noise & took it back to the garage I purchased it from, they diagnosed it was the timing chain but said they wouldn't fix it as it was just out the one month warranty! I contacted trading standards & they said it has to be "fit for purpose for the first six months", I sent a recorded delivery template letter asking for the issue to be fixed (which was ignored), my next step is to do the same but ask for a full refund (paid 7k) then it will go to a small claims court which should work in my favour. Problem is even if I get 6k back I won't be able to get another 3.0 TDI with my high spec. My friend who is a mechanic has offered to replace the timing chain, guides & tensioners but I'm not sure what to offer him, normal price is between £1500-2000 which i could never afford, would have to scrap it! I was thinking of offering him 1k (including parts), does this seem reasonable for a homer as I know it's a huge job.