Welcome, Mr. Muharrem. Your vehicle is a model used by many renta car companies. Your vehicle don't know the unit from them.
If you have just bought it, have it checked in detail. Since the vehicle is new, check the service records. Maybe there were some campaigns that the services applied to some vehicles. You can come across them. If you do not have a chance to catch such a thing, there are some masters recommended for Istanbul in the forum. Show your vehicle to one of them. These problems do not include solutions to be said regardless of the vehicle. I think there are many reasons.
I guess there are forum friends to help you from Istanbul. I wish you convenience now