my car is not working

my car is starting 5, 6 times after that, sometimes it works sometimes it does not work. Starts but does not buy, it is breaking as if it is constantly working. I took her to the service. They changed the primary diesel filter, then they said that the brain was short-circuited, they changed it, and it was a bit of a problem, but after a week, it didn't work.

the same problem happened to me as well the problem was in the brain there was nothing we did not look at, there was an integrated igniter in the brain, the wall of the carrot was fixed, the problem was solved. I did not take it to the service they did in the industry ..