Engine Cooling System problems of the 2006 Chrysler Sebring

I am having problems with my 2006 chyrsler Sebring. It started in 2008 or 2009 when car ran hot on the interstate. I added coolant but it seems to evaporate or leak. I went into landers Dodge for an oil change and upon inspecting the vehicle they found a leakage from what they say is called a coolant inlet tube which will cost me over $400 to repair. I feel that with my car being only 2 or 3 years old at the time should not be taking place. I have also found others that have the same vehicle to have the same problem or having to replace the transmission in 2006 Chrysler Sebrings. I would like to know how the situation can be looked into.

This is a 2006 Sebring touring, bought with around 33,00 miles. The first night I tried this car, the check engine light came on with them saying they would fix it. It didn't come back on for months. . . After the warranty was up. I have had this car almost a year and it had a 30 day warranty. I took it back at least once a week for the warranty with them saying they could find nothing wrong. The brakes make rubbing noises, even though I was told they put on new brake shoes and it wobbles, even though they said they calibrated the rotors and fixed them. It jumps when you stop and on take off it just took it to another shop in another town and was told they couldn't find any wrong other than it needed an update and that this should take care of 99% of my problems if not all. After paying out 178. 45, it do not take care of the problem. The also told me that I needed a new fuel pump and that one of the problems was it was pumping too much fuel and that this would eventually do damage to other parts of the engine and I would be looking at more than just the fuel pump to replace but they didn't think the car would just quit on me right now, but I was looking at problems on down the road. So now, I am looking at around 450. 00 for the fuel pump and labor and still don't know if that is the problem. In July I had about an inch plus water in my passenger rear floor board, after sucking the water up several times, they finally said I needed a new type of drain line on the air conditioner, but come to find out, it had the new line. I did get the line blown out because they said that the air conditioner line getting clogged is a problem. The water has not come back, yet. The air conditioner makes like a hum-hum noise, then it will quit and the car sounds quiet for a few min, and then it starts again. This is definitely a car I am dissatisfied with. I had bought 3 sets of wiper blades and none of them seem to sit on the windshield correctly to get the water off.