Hi
My baby is back from my dealer, and the speedo works. It was the speed transducer at the gearbox end, just as suggested by Mr. Baldwin. My thanks go to him, and of course to my mechanic
It looks, like this transducer has been modified meanwhile. Pressing the little button, and the failure of speedo had nothing to do with each other. Funny coincidence indeed...
Sunny greetings from Luxembourg,
Ivo
)