The most common source of leaks is in the rubber seals but it is also possible that you have a torn roof canvas.
Mercedes clk convertible leaking roof.
It drips down on both passenger and driver side near where the window meets the closed top so drops fall on the seats near the windows not in the middle of.
Common mercedes clk soft top roof problems.
Roof requires recalibration or roof reset.
Boot lid catch does not release or you are unable to access boot area.
Cabriolet not operating fully through cycle or stops halfway.
Convertible roof is stuck open shut.
My 2006 clk 500 roof leaks when it rains.
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.
Hydraulic leaks or hydraulic pump failure.
Alignment issues with roof frame.