as like other people window went down on its own and came back up when i switch off the engine went inside for 5 minutes ,came back outside window came up on the switch.Then as usuall it was not long before i press the window down and it went down approx 100mm and stay there,. Problem found and fixed,Took door cover off,left the wiring on motor remove 2 screws pull down the circuit board,remove plug, check each pin from inside socket to pcb board. First 2 were badly corroded.other 4 pins ok. The fix,got a hobby tool put a pointed tool on and gently cut away the plastic to reveal good metal on both pins,clean surface and solder a piece of wire across the gap,once all contacts were check,put some resin glue mix into the hole and let dry.reconnect and away you go. Do not know how they got corroded,could be a manufacturing process.