I bought my 05 Roadster cheap knowing the top wasn't working. I figured anything can be fixed and have looked through these threads. I brought it to a Mercedes dealership and here is a laundry list of things needed and or repaired:
-microswitch and holder for "partition" broken.
-left side flap retraction cable is broken
-left trunk partition switch and holder and partition is broken
-left top stowage lid flap cable is broken
There might be additional hydraulic leaks, etc., but until these things are addressed-you can't even get to that.

I might call it a day on this one.

 

I have an improved trunk divider bracket for sale. PM me if interested.
Cables can be made by a good bicycle shop. Check threads for more info.
Hydraulics can be rebuilt..
Can you raise and lower the top manually.
Whatever you do ------- DO NOT TAKE IT TO MB OR CHRYSLER DEALERSHIP. Find a good independent European shop.
This Forum has a wealth of information and manuals + some very knowledgeable willing to offer tips and advise.
Good luck

 

Top Hydraulics rebuilds the hydraulics. Most of the other parts are available on Ebay.

 

Another source for parts is Marketplace on this Forum https://www.crossfireforum.org/forum/market/
and Parts for Sale on FB page https://www.facebook.com/groups/426541104181728
Good luck

 

-microswitch and holder for "partition" broken.
-left side flap retraction cable is broken
-left trunk partition switch and holder and partition is broken
-left top stowage lid flap cable is broken

Reading this list I only see two problems, lines 1 and 3 are the same thing and lines 2 and 4 are the same thing.

 

WHy did you take it to a dealer? Costs thru a dealer will REALLY discourage you.
Added to that, even MB dealers tend to not understand anything to do with electronic troubleshooting.

We can help you here just as much as a dealer can...