The car radio, CD player installed as standard equipment of Mercedes-Benz, is equipped with a built-in security code to prevent theft. If the power supply to the unit is disconnected, the system will be activated. Even if the power supply is immediately reconnected, the car radio will not function until the correct code is entered. Therefore, if you do not know the correct security code, do not disconnect the car radio from the battery or remove it from the vehicle.
The steps to reprogram the unit that disconnects the power source vary from model to model. For specific information, refer to the manual supplied with the unit or contact your Mercedes-Benz dealer.
Car Radio Theft Prevention System (Mercedes-Benz C-Class W201)
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The article has been verified: Lukyanov Nikita Ilyich
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