Boot lid catch does not release or you are unable to access boot area.
Mercedes clk convertible leaking roof.
Convertible roof is stuck open shut.
Roof requires recalibration or roof reset.
If waterproofing the fabric part of the roof solves it temporarily then it seems like you probably have tear in the canvas.
My 2006 clk 500 roof leaks when it rains.
Hydraulic leaks or hydraulic pump failure.
Alignment issues with roof frame.
Cabriolet not operating fully through cycle or stops halfway.
If you find out that the convertible top reservoir is low in fluid that means that you have a leak most likely at one of the convertible lift cylinders.
Common mercedes clk soft top roof problems.
My 2006 clk 500 roof leaks when it rains.