Previously had a 2006 A3 2.0 TDi last year winter I was impressed with, had that remapped and it was quick and fairly quiet, so much so I decided to buy another one this year for a winter hack. I bought a 2005 55 facelift - the engine I find very noisey on this particular one, it pulls very well and produces better MPG than the last one, once warm its much better.
From cold its very noisey and sounds like a tank. - Its on 99k has FSH and always had the oil done fairly frequently. Is there anything that could cause the extra noisey-ness? I'm going to change the oil and filter again using Castrol 5-30W EDGE FST - is this the best to use or something thicker like 5-40 EDGE FST?
Cheers for any assistance