My did the same but usually right after washing the car or during a rain. Couldnt see where the water was getting on the harness but that was the cause of ALL my problems, once replaced no problems at all. I curently have 228k miles on my car.
Chris

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94 E320 with:
18" ///AMG Monoblock II's,AMG Gen II front bumper, H&R spings,500E sway bar, Bilstein sports, Eisemann Exhst, K&N,E500 Headlamps, Crystal Clear Corners, Avantgard Grill ...and more stuff to come! oh yeah 241k miles!!


My Car WOO HOO...... Now SOLD
New car.... 2001 Jaguar XJR!!!!