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How to Reset the AdBlue System on a 2017 Mercedes-Benz C-Class

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

Resetting the AdBlue system on a 2017 Mercedes-Benz C-Class is a straightforward task. First, refill the additive by opening the fuel door, where you will find a blue cap. After completing this step, turn on the ignition to check if the AdBlue warning light has turned off. If the issue persists, perform a diagnostic using a computer. The diagnostic will show exactly what type of problem your vehicle has. With the computer, you can also resolve the issue, as sometimes you just need to restart the system.

Updated on 17 July 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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