Mercedes-Benz of Greenwich

About 6 months ago I bought a 2006 E350 4matic from Greenwich Mercedes in Ct. I brought it in for the first oil change and asked for some warranty work to be done. They did all the adjustments for free but, anything that would cost money was denied. The unit with the Nav and phone has a faded screen and a cracked button. They said too bad. The handle for the cup holder has the chrome finish coming off, they said too bad. The head liner has snags or pulls in it. This was supposed to be checked as part of the CPO but they said too bad. When I bought the car they put 4 tires on. One has a bubble in the side wall. They said too bad. Maybe the bubble was caused by a pot hole but, I don't think so. I went to a local tire dealer who told me that they could warranty the tire. When they called the manufacturer, they were told that the tire was old and not made anymore. Part of buying the car was 4 new tires and now 2 months later they are outdated? I had to buy 4 new tires because it's 4matic. Greenwich Mercedes wont even talk to me anymore. I have started a small claims action. Why warranty the car if you're not going to fix anything. I thought Mercedes was above this. The service writer was telling me how he fought for me and it's an ordeal there. I don't want to hear about their internal struggles. I want to be treated like a valued customer.