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How to Empty and Clean the AdBlue Tank on a Peugeot 3008

Model: Peugeot 3008 P84, MK 2 - Years: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Checks and maintenance

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In this video, you will see how to empty the AdBlue tank before removing and cleaning it. After unscrewing the Torx screw, lower the cap and remove it. To rinse the tank, fill it with about 10 litres of hot water and let it sit for about 10 to 15 minutes to allow the water to dissolve the crystals inside.

Drain the liquid.

Soak the cap in hot water. Then seal the tank, remembering the Torx screw, refill with AdBlue - adding an anti-crystallisation additive that can be found on various e-commerce sites - and replace the tank.

This operation is particularly useful for those who do not drive many miles. Always remember that AdBlue has an expiry date (found written on the container).


Updated on 16 September 2026 by ScegliAuto


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The Service light, depicted as a yellow spanner, illuminates as scheduled to remind the driver that it is time for scheduled maintenance. This means that the set mileage has been reached, or the expected time has passed. The procedure involves turning on the instrument cluster, pressing the accelerator three times, and then turning off the ignition. After this, keep the brake pressed, turn the ignition back on, and then turn it off again. Upon the next ignition, you will notice that the light has been reset.

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by ScegliAuto

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