I just bought a used 2002 A4 Avant 3.0 and experienced a problem in the first 3 days. The windshield and rear window wipers work, but the headlight washers do not. also, no washer fluid is sprayed from either the windshield or rear window jets. Finally, I don't hear the washer motor when I pull back on the spray control. Has anyone experienced and rectified a similar problem. I'm hoping I don't have to replace the washer motor.