I get a creaking noise when going over speed bumps following a cold start, seemingly from the rear, but it seems to stop after going over two or three bumps. Can't tell if it's suspension or something in the interior though. It's been happening since I got the car (two years ago) but never seem to find time to get it into the garage.
Would love to know what direction to point VW in as, from previous experience, they're not very good at diagnosing faults unless you hold their hand.