Windshield Wiper/washer problems of the 2001 BMW X5

The contact owns a 2001 BMW X5. The contact stated that when driving in inclement weather the windshield wipers would become inoperable intermittently, causing a loss of visibility. The dealer made four attempts to duplicate the failure but to no avail. The manufacturer was notified who informed the contact that the vehicle would be repaired under warranty. The contact state that the vehicle had been repaired several times in the last nine years because of the failure. The vehicle was not further repaired. The current mileage was 130,000 and the failure mileage was 9,000.