Punto remained on the way to work (for 3 days)

Hello all, my Punto Active Clima 1.2 8V (built in June 2005) went out on 3 days (only) in the morning at work during the ride. On day 1 came ADAC, read out errors (Zündspüle A+B, engine control), deleted all errors and I could continue driving. Next morning the same game, only that the reading did not indicate any error. Car jumped on and we drove directly to the Fiat workshop. The ADAC described the story of the last two days, Fiat drives sample, has A uto read out (no errors were shown) and I was able to pick up the car again. On 3 morning car went out again. ADAC came out, left out, found 3 new errors (speed, vehicle speed and one could not be identified), did not delete errors, car read to start (as well as on the previous days) and I drove on. Since then my car is now back in the FIAT workshop. They have replaced the sensor for speed and vehicle speed, my key decod and recoded (because my car eventually stopped working) and drove over 100 km in 2 days. NOTHING. He drives and drives. Does anyone have a similar experience behind him? If so, can anyone tell me what that could cost me?