Wasn't sure where to put this -

Hi
is there a way to manualy open the sunroof on a 91 W124 300D. I am not sure if the switch is kaput or not. I couldn't hear any indication that the motor was trying to work so I checked the fuse, I changed it as it was a bit manky. I pulled the switch and tried jumping/shorting the poles with a bit of wire but nothing happened, I probably did it wrong so I don't hold much faith in that test. If I stick a 12V tester in the holes it should light up - right??!!
anyway - any thoughts anyone

Thanks
Adrian