Wiring Problems of Mercedes Benz CLA250

The contact owns a 2012 Mercedes Benz cls 550. The contact stated while driving at an unknown speed, the check engine warning light illuminated. The contact took the vehicle to mercedes-benz of alexandria (200 s pickett st, alexandria, va 22304) where the vehicle was diagnosed. The contact was informed that an oil leak had caused damage to a wiring harness, the engine control module and several other unstated electrical failures. The vehicle was not repaired. The manufacturer was notified of the failures. There was no additional assistance provided. The failure mileage was 610,708.

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Traveling approximately 15mph and slowly accelerating, vehicle became completely unresponsive to throttle input, and engine remained at idle speed. Displayed showed the messages "pre-safe inoperable" and "see owner's manual. " after the engine was shut off and restarted, the car drove normally. It was taken into the dealer for inspection and repair, and was returned to me after the service adviser advised me that they could "find no codes. " the very same error occurred a few days later. This time the service adviser said that error codes were found, that there was a "conflict in the programming", that all of the hardware checked out, and that "reprogramming the module" will fix it. 36 hours later it occurred again. This time the adviser said that a Mercedes Benz service database indicated that the problem was with a wiring harness in the throttle, and that replacing that harness will fix the problem.

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