How To Reset Adblue Warning Peugeot Boxer
If you own a Peugeot Boxer, you may already be familiar with the AdBlue warning light. This is a common issue that many drivers face, especially those covering long distances or using their van for commercial purposes. While the AdBlue system is crucial for reducing harmful emissions and complying with Euro 6 regulations, it can sometimes become a source of frustration when the warning light fails to reset after a refill.
In this guide, we’ll explain what the AdBlue warning means, why it happens, and most importantly how to reset the AdBlue warning light on your Peugeot Boxer van.
What is AdBlue and Why Is It Important?
AdBlue is a non-toxic, colourless liquid made up of urea and deionised water. It’s used in diesel engines equipped with Selective Catalytic Reduction (SCR) technology to convert harmful nitrogen oxide emissions into harmless nitrogen and water vapour. This is part of the environmental regulations designed to reduce vehicle emissions and improve air quality.
When your AdBlue levels are low, your Peugeot Boxer will notify you with a dashboard warning. If ignored, the vehicle may eventually refuse to start, so it’s important not to delay refilling the AdBlue tank.
Common Reasons for the AdBlue Warning Light
Even after topping up the AdBlue tank, the warning light may stay on. This can be due to several reasons:
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The vehicle was not turned off for long enough after refilling.
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The onboard computer hasn’t recognised the refill yet.
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The AdBlue sensor is faulty or dirty.
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There’s an issue with the SCR system.
How to Refill AdBlue in the Peugeot Boxer
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Locate the AdBlue filler cap, typically next to the diesel fuel cap or in the engine bay, depending on your model year.
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Use only certified AdBlue fluid.
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Fill until the tank is full or until you’ve added at least 5 litres.
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Start the engine and let it run for a few minutes.
How to Reset the AdBlue Warning Light
If the light doesn’t turn off after refilling, follow these steps:
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Turn off the engine and remove the key.
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Wait at least 10 minutes to allow the system to reset.
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Restart the engine and check the dashboard.
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In some cases, you may need to drive the vehicle for a short distance for the system to recognise the refill.
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If the warning still persists, consult the vehicle’s manual or consider using an OBD2 diagnostic tool to clear the fault code.
Alternatively, the video below demonstrates a practical, step-by-step approach to resetting the AdBlue warning on a Peugeot Boxer. This visual guide can be especially helpful if you’re unsure about any part of the process.
Conclusion
While the AdBlue warning light can be inconvenient, it’s there for a good reason, to ensure your vehicle remains environmentally compliant. Fortunately, with a few simple steps, you can often reset the warning yourself and avoid costly visits to the dealership. Always make sure you’re using high-quality AdBlue and follow proper refill procedures. If problems persist, professional diagnostics may be required.
For more information on servicing and repair of the Peugeot Boxer, consider downloading the official Peugeot Boxer workshop manual by clicking this link (Click Here) or directly download via the button below.
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