The subject describes it, can't unfold the front seat regardless of the position or tension of the unfolding release lever. However, folded seat can move forward, headrests, etc can be adjusted electronically. Tried unplugging 20 V port, feels like there's a mechanical obstruction on the inside hinge.

Is there a way to manually release the folded front seat so I can drive? Thought I would ask experts before taking leather off.

Car is 2000 320 clk Cabriolet.