Hi mate,

My front section was not coming down after installing the genuine BMW seal as the gap between the two pieces of glass wasn't enough so when it popped up it was ok but coming down it thought there was an obstruction such as fingers in the way so it kept going back up.

The rear glass section doesn't seem to be seated into the back of the roof properly causing a smaller gap between the two pieces of glass than should be.

I pulled the seal off, closed the front glass from the vent position, slid it back open and reapplied the seal, closed and it's ok but bloody tight. I'm not tempted to go into the vent position again.

The rear glass panel has had the vent position fix where it no longer does it.

Apart from taking a rubber mallet and trying to tap the rear glass panel back hard I don't know what else to do.

I hope this clears things up.

Cheers