Electrical Issues Due to Degraded Engine Wiring Harness on Mercedes-Benz 300SL

The engine wiring can degrade because the insulating material falls off leaving the bare wire exposed. This can cause many problems depending on which wires are exposed and what they touch.

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Average mileage: 89,000 (70,000–108,000)
4 model years affected: 1990, 1991, 1992, 1993
6 people reported this problem
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Viewing 1 - 2 of 2 problem details
1991 Mercedes-Benz 300SL 70,000 mi,
Degraded insulation on ABS wiring behind brake caliper. Wrapped with tape. Mileage was 70,000 when discovered just after purchase.
1991 Mercedes-Benz 300SL 108,000 mi,
Expected due to age of car. My mechanic says eventually will need to replace and quoted 3k