where do I get my vario roof repaired

Thank you very much for the information, but the problem I am having is this: Repair Pal did refer me to a great repair shop Country Repair & 24 Hr Towing in Nampa, Idaho, where I had $3,300 worth the repairs done, and they did a great job. The problem is...they do not have the Mercedes Vario Roof diagnostic machine (if there is such a machine?) after they told me that, the next shop took 5 hours just trying to figure out why the roof would not go up, getting nothing accomplished, so really need a shop that specializes in the Vario Roof Repairs, thanks for your help