I just picked up my third BMW, a 2005 630i. Happily the original owner went nuts with the options list, and amongst other things the car has the fantastic panoramic sunroof.

Driving on London's scarred roads I have noticed a rattle coming from the vicinity of the pano roof. This happens whether the shade is pulled forward or back. I suspect that this might be solved when I switch from the standard 18" rims with run flats to 17"ers with standard tyres, but that's a while off and it's already bugging me. From searching the forums in general I have found that other BMW pano roofs have rattling problems, particularly the X3, where the plastic divider bar vibrates against the glass of the roof. Presumably the E63 has no such bar since it's a single piece glass roof.

Has anybody else experienced and solved this problem?