I own a C240 2001 model. few months before, it's left indicator stopped working. I had to take it to Mercedes Benz to repair it and they changed the whole circuit board for all the lights. I had to spend a huge amount of money for it . After just one day, my parking proximity stopped working. Both the proximity sensor displays for back and front don't work

So, if you people can help me, it will be nice. I am afraid to take the car to Mercedes Benz, because, they do nothing special and charges a lot of money.