I had the same problem with my CLK. Klaus from Top Hydraulics was the only one that was able to help me. I went to 2 different dealers and got nowhere. Klaus made me a great price and helped me to get this fixed very quick.
klaus1953, (there is no relation - the name match is a coincidence with both of us originally being from Germany) Thank you for your kind words!
The problem in klaus1953's system was a leaking pressure relief valve
. That's the one you turn with the white plastic cone. Klaus1953 was lucky that we were able to polish out what the valve debris had caused in damage and were able to refit an oversized seal, so that we did not have to replace the whole valve block. Thus the "great price"...
keyhole, there are quite a few differences between W208 and W209's soft top systems, so the drawings or schematics in the referenced thread could be confusing to W208 owners. Most notably, the W209 does not have the R129-style lock cylinders
for the rear of the soft top and for the tonneau cover lock (both of these are notorious for failing quite early), the W209 does not have the same pressure relief valve on the pump block, but the W209 has a front lock cylinder
that is prone to early failure. Lastly, it seems that MB has solved some of the problems with hydraulic lines
getting pinched or rubbing to much, which leads to catastrophic failure.
The main thing to keep in mind when troubleshooting the micro switch system, is to "put yourself into the shoes of the controller"
- Where exactly did the cycle stop, and what was the last step that the controller might register as unfinished.
- Which signals from micro switches could be confusing, so that the controller will stop operation because the readout is illogical.
- Was the battery low, so that the controller may have lost memory where the windows are at now? In that case, follow the reset or resynch procedure needed after the battery was disconnected or low, as outlined in your manual.
Hope this helps,