Problem with pouring water on is the situation will be worse next time it freezes :?
Before i discovered Gummi some years back our Touareg had a habit of freezing gasket on drivers door , did the usual warm water trick for a week or so , , only to worsen the situation as the door handle/lock mechanism started to freeze :wink:
I would go for the lube method , , since purchasing the ACF50 recommended by Z4M-2006 ive used this on all my rubber seals & think its better at staying "slippery" than the Gummi :wink:
For those with 89,s you could maybe apply a little to where the brush strip sits ?