It's the (I think) same phenomenon as with Andreas Grabl a little further down.
I took a break after a long ride (300Km) to the Lütten. Five minutes later, keys turned. Board tension on. A stuff further trodden... Volcanic silence. The board tension is full. No darkening, just nothing. No clapping... only yawning rest. I'm sure I tried 10 times. I also got out and closed properly (with horns) new, always the same.
Suspicion of immobilizer.
Colleagues called. He said if it was WFSperre, the starter would have to turn, but he can't start. I'm thinking the power to the starter is locked.
Now, the question is who's right about a 16-year-old Lütten?
The phone took a little longer, as we couldn't agree.
I tried it again after 10 minutes. Then he ran again, as if nothing had happened. I didn't caress the starter or beat it up. I just didn't do anything.
Today I'm taking off at everyone and starting the cup on ice. Real nerve stress...

Could it be the immobilizer?
Even today he ran all this was never anything else!!
Greetings
Ruedi
und dann ist auch nichts mit anlassen. Vielleicht ist es bei dir dasselbe.
Nicht an irgendwelchen Sensoren im Motorraum aufhalten. Der Ausbau ist etwas aufwändig, da muß das Armaturenbrett raus, aber sonst gehts.