Moin, I sometimes observe while switching slowly that when I insert the 5th gear, the speed rises about ~ 1000 revolutions and then the clutch is pressed again. Could that be the neutral switch on the gearbox that is worn out? Know stories only from the STI where the engine dies while shunting. Car runs, except for my sporadic power waste (at 0.5 bar stop) which I probably have under control, but normal. Were stuffed hoses for charging pressure regulator and probably a dirty plug. I am just after the exhaust gas temperature sensor (original ~80€) if the plausible works. But since I never have errors in the memory.