Windshield Wiper/washer Linkages problems of the 2001 Mercedes Benz 320

Various problems with electrical, heating and cooling, suspension, power steering, lighting, and purge valve systems. Spent 7k in last 3 years alone. Heating and cooling system was removed and reinstalled twice and still does not work right. Struts and steering system completely brakes down every 6 months. I am in the repair shop every 2-3 months! average out of pocket (after extended warranty) $500. . . Outrageous (x4 or 5 per year!). Warranty kicks in another 4k per year. My records show 14 visits to mercedes repair shops since November 2004. . . Insane. This is my first and last mercedes! even my service adviser told me to get a Lexus or Acura!.