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How to Top Up AdBlue Fluid on Peugeot 208 - Citroen C3 1.6 BlueHDi

Model: Peugeot 208 A9, MK 1 - Years 2012-2019
Part: AdBlue warning light

In today's video, you will learn how to top up AdBlue fluid, which is used to reduce CO2 emissions, on a Peugeot 208 1.6 BlueHDi Euro 6, as well as on its counterpart, the Citroen C3 with the same engine. Locate the filler cap in the boot of your car, underneath the spare wheel; then open the cap and top up the fluid, filling it to the maximum level. Once filling is complete, get into the vehicle and check that the AdBlue warning light has reset (indicating that the refill has been done correctly).

Updated on 12 April 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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by ScegliAuto

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