To flicker and flicker tacho

I also wanted to have the tacho made at once.
Symptoms as known: Loss of the tacho needle, the cruise control, also the mileage fence and the BC partially out. (a light, discreet, distinct blow helps to make everything work again)

The following repair measures do not necessarily lead to success: (at least not with me)
Clean the tacho needle, clean the contacts and partly relode them, and check the seal under the car.

It is indeed, as already mentioned by others, some blond, complicated break in the instrument cluster. In any case, exchange is cheaper than loan hours. ;-)
P.S. I'm looking for a tei like that.

Many greetings