A/C evaporator leak failure on 335 e93 3-series bmw on 2007 BMW 335i

A/C on my 2007 e93 BMW 335i 3-series stopped working at 60k mi. The dealer told me the job would cost $4500. yes, 4500. This is not only absurd amount, but also a clear case for impunity class action lawsuit and/or small claims court. Please respond below if you are having/have had the same problem on 3-series. That'll help all of us in getting BMW doing the right thing by fixing this design issue. Thanks

Asked by for the 2007 BMW 335i
Fuck BMW. They need to go back to deutchland with their plastic rubbish cars. overpriced for almost everything. except maybe the japanese components on car