Mercedes-anti-theft-protection-activated

Brand:Mercedes

Mercedes Benz Comand Audio Unlock Anti-Theft Radio PIN Code NTG4.5

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Category: Radio Codes Anti-Theft

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Mercedes Benz Comand Audio Unlock Anti-Theft Radio PIN Code NTG4.5

Mercedes-Benz Anti-theft Protection Activated is a security feature available in some Mercedes-Benz vehicles. It is designed to help prevent theft of the vehicle by activating an alarm system and disabling the engine starting system and radio. When activated, the system will arm itself automatically after a certain period of time or when the vehicle is locked. In some cases, the vehicle will start but the radio or the COMAND screen will show anti-theft protection activated which can be due to a glitch in the vehicle communication network or a weak battery, in this guide we show you how to reset it. The Anti-theft Protection Activated feature is intended to provide an additional layer of protection for your vehicle and can help deter thieves from attempting to steal it.

When you turn on the Mercedes-Benz Comand system, a message appears on the screen, indicating that the “Anti-theft protection” is activated. At this point, the entire system stops working, including all audio, navigation, and other features. Fortunately, the car continues to function normally. The car was probably locked overnight, and you unlock it using the fob before starting it up. However, approximately five seconds after starting the car, the anti-theft protection activated message appears on both the dash display and the larger Audio 20 display. As a result, you cannot access any of the system’s features, such as the phone, radio, or media playback.

Symptoms

Antitheft protection activated, switch ignition on, and restart the system
Anti-theft protection is activated, please switch the ignition on and restart the system
ANTI-THEFT PROTECTIVE ACTIVATED SERVICE REQUIRED
Anti-theft protection activated please visit your Mercedes-Benz workshop

Common Causes

The most common causes that trigger the Anti-theft protection activated” mode on Mercedes-Benz vehicles include:

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Weak car battery – The “Anti-theft protection activated” message on a Mercedes COMAND screen can also be caused by the vehicle’s battery, which is located under the hood, under the seat, or trunk depending on the model. In colder weather, if the car is parked overnight, or if the battery is old, it may not hold a full charge. This can cause the voltage to drop below the required threshold, which is 11.5 volts. If the voltage dips below this level, the alarm system may activate, triggering the anti-theft protection message.

Replaced Radio / Command / Head Unit
You tried to change the region in the Engineering Menu.
Communications loss between the Command system and the car due to a damaged wire harness.
EIS (electronic ignition switch) is replaced and not coded correctly. To fix this problem properly code the new EIS and the COMAND unit.

Car Battery May be Getting Weak

Mercedes’s “Anti-theft protection activated” message on the COMAND screen can be caused by several factors, one of which is a weak battery that is not holding a full charge. Over time, the battery in a vehicle can become old and begin to lose its ability to hold a charge. If the battery voltage drops too low during startup, it can cause a disruption in the internal network of the vehicle, which can trigger the anti-theft protection.

The COMAND system requires a stable and adequate power supply to function properly. If the battery is unable to provide sufficient power, the COMAND may not be able to detect the CAN network of the vehicle, and the anti-theft protection will be activated. Therefore, it’s essential to regularly check the health of your car’s battery and replace it if necessary, to ensure that it’s functioning correctly and providing sufficient power to the vehicle’s systems.