VERY noisy sunroof...

[The_Laird]

...just developed this morning. On uneven road surfaces (plenty of them up here) it was making a heck of a noise on the way into work: creaking, rattling, thumping. I've not tried to open it as it's -3C and I have a feeling that may be part of the problem - I washed it on Saturday morning and haven't moved it since. I'm wondering if water in the channels around the sunroof has frozen, expanded and is somehow contributing to this racket.

Once it warms up a bit, I'll go and try to open it and report back

Anyone had similar problems?