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How to Reset Peugeot AdBlue Warning: A Step-by-Step Guide

Is your Peugeot displaying an AdBlue warning light? Don’t panic! This is a common issue for Peugeot owners, and it doesn’t necessarily mean a trip to the mechanic. This comprehensive guide will explain what an AdBlue warning is, why it happens, and How To Reset Peugeot Adblue Warnings, empowering you to address the issue head-on.

Understanding the Peugeot AdBlue System

Before we dive into the reset process, let’s understand why this warning appears. AdBlue, also known as Diesel Exhaust Fluid (DEF), is an essential component of Peugeot’s Selective Catalytic Reduction (SCR) system. This system significantly reduces harmful nitrogen oxide (NOx) emissions from your vehicle’s exhaust, promoting cleaner air and meeting environmental standards.

Why is My Peugeot AdBlue Warning Light On?

The AdBlue warning light illuminates for several reasons, including:

  • Low AdBlue Level: The most common reason is that your AdBlue tank needs refilling.
  • System Malfunction: A faulty sensor, a problem with the AdBlue injector, or other system issues can trigger the warning.
  • Incorrect AdBlue Fluid: Using AdBlue that doesn’t meet the required ISO 22241 standard can disrupt the system.

Peugeot AdBlue Warning LightPeugeot AdBlue Warning Light

How to Identify a Peugeot AdBlue Warning

Peugeot AdBlue warnings typically manifest in stages:

  • Early Stage: A warning message appears on your dashboard, indicating a low AdBlue level.
  • Intermediate Stage: The warning light remains illuminated, and the message indicates a limited number of starts remaining.
  • Final Stage: The engine won’t start once the AdBlue level reaches a critical point.

Peugeot AdBlue Warning MessagePeugeot AdBlue Warning Message

What You’ll Need to Reset the AdBlue Warning

While refilling the AdBlue tank often resolves the issue, sometimes a manual reset is necessary. Here’s what you’ll need:

  • AdBlue Fluid: Ensure you purchase the correct fluid that meets ISO 22241 standards.
  • Diagnostic Tool (Optional): For system errors, a diagnostic tool can help identify and clear fault codes.

How to Reset Peugeot AdBlue Warning: A Step-by-Step Guide

1. Check and Refill AdBlue:

  • Open the AdBlue tank cap (usually located next to the diesel filler cap or in the trunk).
  • Carefully refill the tank using AdBlue fluid, following the manufacturer’s instructions in your owner’s manual.

2. Reset the System (If Necessary):

  • Method 1: Driving Reset: Some Peugeot models allow for an automatic reset after driving for a certain distance and speed with a refilled AdBlue tank. Consult your owner’s manual for specific instructions.
  • Method 2: Diagnostic Tool Reset: If the warning persists, connect a compatible diagnostic tool to your vehicle’s OBD-II port. Navigate to the AdBlue system and follow the prompts to clear fault codes and reset the system.

Peugeot OBD Port Diagnostic Tool Peugeot OBD Port Diagnostic Tool

FAQs: Peugeot AdBlue Warning

Can I drive my Peugeot with the AdBlue warning light on?

It’s not recommended. Driving with a persistent AdBlue warning can lead to reduced engine performance and, eventually, prevent your car from starting.

How often do I need to refill AdBlue in my Peugeot?

The AdBlue consumption varies depending on driving conditions and model. However, most Peugeot vehicles will require an AdBlue refill between service intervals.

What happens if I accidentally put diesel in the AdBlue tank?

Do not start your engine! Putting diesel in the AdBlue tank can cause severe damage to the SCR system. Seek professional help immediately.

Need Further Assistance?

Resetting your Peugeot AdBlue warning is often straightforward, but if you encounter persistent issues or need expert guidance, CARDIAGTECH is here to help. We provide a range of diagnostic and programming services for Peugeot vehicles, ensuring your AdBlue system operates flawlessly. Contact CARDIAGTECH today for all your Peugeot diagnostic and repair needs.

For more information on AdBlue resets for specific Peugeot models like the 3008, you can check out our detailed guide: How to Reset AdBlue Warning Peugeot 3008.

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