Hi
Is there any visual signs at all? My Avant rattles like a bast?&d at the back and though Audi have said that the rear DRC is leaking it's only a slight leak. As such, Audi UK have declined the replacement for now. However, I'm loosing the will to live and can't believe it's just down to DRC. But before ploughing money into arms, shocks etc I'd like know what's the cause. Like you, cold weather, first 10-20 mins rattles like anything, then it stops (conveniently just when I get to Camberley Audi), and all is fine.
Car is off to MRC next Friday for a few tests and a dyno check (plus discussion on potential tweaks

) etc so just wondered if Doug would be able to spot anything.