Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
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The led lights usually conflict with the computer controlled operation of the lights as they were not standard lights on this model here.When an incorrect light is detected by an ecu this causes a light issue here.Usually the lights have to be put back to the way they were to correct this issue or resistors put in line to compensate for the LED light style.
As for the no sound issue this is usually caused by a fault with the sound amplifier itself.It usually fails internally causing this fault needing replaced.
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