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How to reset the AdBlue warning light on a Peugeot 308

Model: Peugeot 308 T9, MK 2 - Years 2013-2021
Part: AdBlue warning light

First of all, let's see a normal reset after filling the tank of the Peugeot 308: turn on the instrument panel; the system automatically detects that the tank has been filled, and resets the system after a few minutes (which can take up to 20/30). If we have a problem with the system, we can instead intervene as shown in the video, which demonstrates an advanced technical intervention; perhaps following a defective pump, or a sensor or injector, which have prevented the car from starting. Through a professional diagnostic tool, the AdBlue system of the ECU is temporarily disabled, allowing the vehicle to restart. It is a solution that does not fix the fault and can cause damage to the particulate filter, and can only be used in case of emergency for a quick restart.

Posted on 26 October 2025 by ScegliAuto

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    Frequently Asked Questions

    • 308 2013-2021 - Where do you refill the AdBlue on the Peugeot 308? Read answer
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How to Connect the Cables to the Battery of the Citroen Xsara Picasso?

In this tutorial, you will see how to connect the cables to the battery of the Citroen Xsara Picasso, useful if you need to recharge it or perform an emergency start. First, ensure the key is not inserted, then open the bonnet and move to the front of the left headlamp. Next, locate the bolt just behind the filter box and connect the positive terminal clamp to it. Now you can connect the negative terminal to any point on the chassis, such as the indicated point. Once the operation is complete, ensure you disconnect the negative first and then the positive.

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