Do it yourself
Frequently asked questions about cars and motorcycles

How to refill AdBlue on a Peugeot 308

Model: Peugeot 308 P5, MK 3 - Years 2021-2026
Part: AdBlue warning light

In this video, we will see how to behave if the urea warning light comes on in our Peugeot 308. In addition to this, the system warns us by telling us how many kilometers of autonomy we have left before the engine does not restart due to lack of additive. Therefore, we need to fill the tank to avoid problems. Let's get the additive, and let's not skimp on the purchase, because a low-quality product could damage the system. Let's also pay attention to how the product has been stored: if it was exposed to the sun, it will surely not be a good deal. The tank is located in the rear trunk, under the panel and under the storage compartment, or the spare wheel if present. We find the cap on the right, open it and fill the tank: this will be enough to reset the warning light.

Posted on 29 August 2025 by ScegliAuto

Video tutorial

Related tutorials

Peugeot 308 (2013-2021 / T9, MK 2) If, upon turning on the instrument cluster of your Peugeot 308, you see the red Urea light, it indicates a lack of AdBlue in the tank, so you need to…
Peugeot 308 (2013-2021 / T9, MK 2) To refill AdBlue additive on the Peugeot 308, open the boot to access the luggage compartment. Remove the cover at the base of the boot, then take of…
Peugeot 308 (2013-2021 / T9, MK 2) Before you can start, open the boot lid of your Peugeot 308. First, unclip and remove the lower boot floor. Then, unscrew the AdBlue refill cap. Once…

Other guides you may be interested in

    Frequently Asked Questions

    • 308 2013-2021 - Where do you refill the AdBlue on the Peugeot 308? Read answer
    • 308 2007-2014 - Where is the AdBlue fuse on a Peugeot 308? Read answer

How to Reset the Tyre Pressure Light on the Opel Grandland X

While driving, if you notice the tyre pressure warning light coming on, first check the actual inflation pressure of the tyres and, if necessary, restore the pressures recommended by the manufacturer. After restoring the correct pressures, you need to reset the warning light that has illuminated on the instrument cluster. To do this, locate the reset button on the lower central console. Press this button and hold it down for at least 3 seconds, after which the low pressure indication will turn off.

Watch the video!


by ScegliAuto

More videos