Alec:

The knob on the motor sets the closed position both ways (for tilt and for slide). The friction clutch in the motor should stop the roof sliding back and tilting up. Your motor may be sticking, or the bridge is loose on one end.

You will have to look at the sides (not where the brigde attaches, but at the pivots) to see if the lifting angles are good. The part on the bridge stays there, they break at the "swivel" in about the center of the roof panel front to rear.

You also need to lubricate the whole deal with sunroof paste. Clean anything else in there out, it will only cause trouble.

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!