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How to Refill AdBlue on the Peugeot 308?

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

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 off the cover located at the bottom left of the spare wheel. Underneath, you will find the AdBlue tank cap. Unscrew the cap and insert a funnel to pour in the required amount of liquid. After refilling, close the cap and replace the boot covers.

Updated on 3 August 2026 by ScegliAuto

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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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