Let's be carefull out there
Join Date: Jan 2006
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If your roof is anything like the one my Clio had it could be a few things. It is possible that the control rods along the side of the roof have seized through lack of lube, this in turn will cause the motor to stop or spin to no effect.
Remove the motor unit and operate to see if it spins ok and check the helix on the end.
With the motor removed try to move the glass by pushing up and back, it should move fairly easily. If not you need to get some lube in at the 4 corners and along the sides.
Currently in chris m's garage:
2000 Scenic 2.0 16v Monaco, BMW 3 Series, Pug 206