I purchased a used BMW from Schomp BMW three years...

I purchased a used BMW from Schomp BMW three years about. During that time I have driven the car about 20k miles. Also during that time I have experienced 3 water cooling issues with the vehicle. My most recent event, without hesitation, was rationalized by 2 Service Advisors as "your car is getting old and parts wear out." This is my first BMW and I expected better workmanship. I can only be left with the belief that BMWs become unreliable after a period of time or Schomp BMW service is questionable. Clearly the customer service needs improvement.