The sun roof on the Aura that Jean owned was slightly out of square when she bought it, it would tilt, but would not drop down through its hole when we tried to get it to slide. It was jamming on the drivers side rear of the frame.
I cured it by tiliting it up, placing some thick cloth in the roof opening where i proposed working, to protect the paint, then placing a thin edged, 5 inch wide bolster chisel in the tight end, lowering it down till it jammed on the chisel, then tapped on the rear face of the chisel in a forward direction with a rubber mallet.. I then raised it back up and tried it again, it took about 3 attemps, but the roof did finaly move foreward slightly on that side and allowed the roof to work properly again.

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James. (Nr M67 East of Manchester).
Dark Blue ZX 1.9D Auto 1994 'L' 5 dr (modified) Aura. 98K miles used daily. Ave mpg 40
Wedgewood Blue 75 CTD auto Connoissaur. 2002. 144k. used daily. ave mpg 40 ish.