Sunroof drain

I have read many messages about the sunroof drain being clogged and creating a wet floor in the rear passenger area.. My question is, how do I find the sunroof drain to un-clog it. Do you have to find it from the sunroof area or under the car? I have a 1998 528i. I can't see any drain area where the sunroof is located and there are a couple of different holes underneath the car, (manufactured holes). I don't know which is which. Any help would be greatly appreciated.

also check your door vaper barriors. I know in mine i have had problems with my front carpet being wet because my vaper barriors are not sticking correctly or had holes in them. As for sunroof i dont have one.......

also check your door vaper barriors. I know in mine i have had problems with my front carpet being wet because my vaper barriors are not sticking correctly or had holes in them. As for sunroof i dont have one.......

Thanks, I'll check that out. Any other ideas that come up, please let me know. :newbie: