From tractor to Alfa 156 – Hilfeeee

Hello dear people, my 20 years young car – a 200 D-124, 16 years in my possession left with Alfa and bought me an Alfa 156 selespeed. Everything best- great price/performance ratio- but: after about 300 km came the first warnings from the outside of operation- please start workshop or like off started again everything ok, but again after a couple of km the same warning- this time something with VCI o.ä.- which in a week 7x. now the car is in the workshop and is tested . My request to you: I have useful information, do you know this problem or is this possibly unique. I am grateful for every hint. Gr.