Bought my CLS 550 in 3 times for warped rotors wi...

Bought my CLS 550 in 3 times for warped rotors with only 19,000 miles, they would only replace if I paid half, what a joke 12,000 miles later same problem. Now 6,000 miles later problem with warped rotors again. Poor customer service they want me to pay half again. Telling me rotors warp in the heat, really an 80,000$ car and Mercedes will not stand behind their product. This is my 3rd CLS 550 but will never purchase again Nanuet Mercedes rates 0 for me.