R129 Electric windows

[r129 300sl]

Hi all,

I have a problem with my passenger side electric window. I initially posted a few weeks back with a problem with both front windows. The driver window problem has been solved with a new switch and works OK.

Previously my passenger window worked with the switch but did not "one touch" down. In addition it did not go down when lowering the soft top. I used to have to manually press the switch prior to lowering the roof. For the past week the window does not move at all, it is stuck in the up position regardless of pressing the switch or lowering the roof. I replaced the switch at the same time that I replaced the drivers' one in case that was the problem. On pressing the switch I can hear a clicking (?relay) from the rear of the car. There is no sound from the door at all.

I have checked the fuses in the boot and all is well. Anyone got any ideas? Where do I look next? Will I have to strip the door? The dealer mentioned something about a comfort relay in the boot but I could not find any relays in the boot.

Thanks in advance