Check for voltage at the window terminals. Supply to earth; across the element; element earth to body. If you get 12v across the element it is damaged. You might be able to fix it - I have soldered terminals back to the block on the glass - but if the strands are open circuit then you are stuffed.
Good - Fast - Cheap: Pick any two.
E23 735i; E30 318i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
E21 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
Last edited by BMWFatherFigure; 10-08-2012 at 01:45 AM.