Speedometer and tachometer work intermittently on 1998 Volkswagen Cabrio

I just got this car and the speedometer and tach work sometimes and sometimes they don't. Most of the time they don't. Also my automatic window on the drivers side won't work but the control works for the passenger side from the drivers side. What could be the problem? Please help!

by in New Kensington, PA on September 02, 2010
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2 answers
ANSWER by , September 06, 2010
Had the same problem on a 95 model. Sometimes I could get it working by banging on it. Finally removed the display and sent it someplace to be repaired. Has worked fine ever since.
ANSWER by , October 16, 2010
THE WIRING TO THE CLIPS ON YOUR COIL SHOULD BE CHECKED FOR CORROSION OR LOOSE CLIPS