Mercedes-Benz S500 engine light issue with potential 48 volt electrical problems and warranty delays on Mercedes-Benz S500
Problem overview
Some Mercedes-Benz S500 owners report experiencing issues with the engine light illuminating, which may suggest problems with the 48-volt electrical system. These owners have noted delays in warranty repairs for these electrical concerns, as dealerships often need corporate approval from Mercedes-Benz before replacing the costly 48-volt system. This has resulted in frustration for many owners who struggle to have these electrical issues addressed in a timely and effective manner.
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Mercedes-Benz S500 vehicles with this problem
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