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How to Reset the AdBlue of the Mercedes C-Class

Model: Mercedes Classe C W205 - Years 2014-2021
Part: AdBlue warning light

To reset the AdBlue of the 2017 Mercedes C-Class, insert the cable into the OBD port to connect the PC for vehicle diagnostics. Once the diagnostics are completed, the error will be displayed, then select the first option. The diagnostics revealed that the problem occurred due to a malfunction in the power supply. Now, lift the car and disconnect the sensor from its housing, as shown in the video. Clean the sensor and let it soak for 5 hours in WD-40. Reinstall the sensor, then move inside the vehicle and connect the diagnostic computer to check that the reset has been completed due to the replacement part restoration.

Updated on 22 September 2026 by ScegliAuto

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How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

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