Hello all,I have a 1991 300sl with the following problems:when using the switch to lower soft top,the REAR of the top unlatches,raises,top cover opens,the windshield latches(left and right)do not open , causing the top to freeze in this position.Reversing the process,every thing closes back up.Noticed that the right window does not lower when lowering the top or actuating the window switch.I can hear the relay switching behind the seat when the window switch is activated.I checked for voltage @ the window motor and found no voltage.I believe the window problem and the top problem are related.I pulled codes from the diag connector and got codes 17 & 18.Can I assume the window switch is good if I can hear the relay behind the seat clicking???? Can any one advise me on the codes?Thanks DAN