No matter what else you do have the car checked by a MB tech that knows about bio-degradable wiring harness problems! & that can scan all of the systems on the car for problems!!

The wiring harness repair can run over $1000. on that car!!

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MERCEDES Benz Master Guild Technician (6 TIMES)
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44 years foreign automotive repair
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190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
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