Steering wheel problem and some other…

Hello everyone! I just got my tucson hybrit. I was very happy at the beginning but when you buy a new car and uou have directly problems it drives uou crazy. Dirst of all i had problems with my tires they made noises after 100kmh i changed the wheels. After a week my sterring wheel feels heavier than before but it is not because of the tires because it dit the same theng with the okd tires. It is driving me crazy because it feels like a mechanic steering wheel not electric. I went to the service and they say it is ok it is normal but i can feel my own car steering wheel problem if it is havier or not. I don’t know what to do