2004 Audi A4 wipers, windshield & visibility problems

My 2004 audi a4 3.0 cabriolet has windshield wipers which at about 8,000 miles of wear began to make an unbearably loud, rythmically repetitive sound on the driver's side. The selling dealer, cherry hill imports, has repeatedly looked at the problem and said there is nothing unusual about this sound, but the car did not do it when it was new. In severe weather , I have resorted to turning off the wipers for a few seconds at a time in order not to be hypnotized by the repetitive sound of the defect.

2004 audi a4 has had several repair problems. Consumer feels that the vehicle could be in an accident due to the problems. The consumer stated all of a sudden, the vehicle stopped running while in traffic. The dealer was unable to find any problems. Several months later, the engine wouldn't turn over. The battery was replaced as well as a bulb. The convertible top would not go down. An electrical part on the convertible was replaced, one of the headlights had burned out and the crank pulley was replaced..