Panoramic / moonroof drainage tubes

[Azza]

Hi all,

New to the forum here and would like to pick some brains!

I purchased my X3 just over a week ago and have noticed that I'm yet another victim of the extremely common leaking sunroof drains into my boot / trunk.

I have done several searches over the last few days of pretty much every X related forum on the net to try and find out exactly where the drainage hoses exit the underside of the car to check for blockages, but really not having much joy. I think I have located the front drainage hoses but I still don't have a clue where the rear hoses exit from, I'm guessing from up behind the rear bumper somewhere, but could anyone confirm this please?? Ideally with photos??

Also I've had a look into the roof when it's open and I can clearly see the holes for the drainage tubes at the front of the car, but how can I get to the rear drainage tubes if the rear solid glass panel is in the way?

Any help would be much appreciated! This looks like a great forum so I'll be sticking around as I have quite a few plans / queries in mind about my X.

Cheers,
Az