Ausmerc

Hello everybody
I bought a clk320 with roof not working, I have topped up the fluids replaced the relay and manually opened and closed the roof resulting in the roof now working to a certain stage: I unlatch the roof and the windows and head rests go down and the bow opens with the glass portion of the roof lowering then stops moving with main part of the roof staying flat, the pump is working for it to continue but won't and roof will close from this position.
Any help would be greatly appreciated