How to remove the door panel of the Smart - Smart (450)
Smart 450 panel replacement part 1 - YouTube
How to guide: Removing a Smart 451 Door panel - YouTube
Car Door Clip Panel Trim Removal Tool For Smart Fortwo Forfour453 451 450 Mini Cooper Countryman Clubman F54 F56 F55 F60 R60 R61 - Hand-held Disassembly Tools - AliExpress