Moin Moin Checked for the ground points today after reading several threads. Cleaned the following ground points. Behind the horn,case room LI-RE,behind the armature board. From Jux still a control unit to try out. (50€) Nothing is happening. Symptoms: After starting it lights up for 2-5sec stable.Then it starts to pulsate easily.Front and rear lamps. Interior lighting also…Displays are stable.Voltages on the batteries OK.On-board battery with running engine 14,2V and start rbattery 15,2V AGM is new and FULL.Starter is also full hope someone knows further.