The Ford Transit Custom is a popular van for its reliability and versatility. However, like any vehicle, it can experience issues. One common problem that Transit Custom owners encounter is the AdBlue warning light. If you’re seeing this light on your dashboard, it’s important to address it promptly. This article will guide you through the reasons behind this warning light, potential solutions, and a step-by-step guide to resetting the system.
What Does the AdBlue Warning Light Mean?
The AdBlue warning light indicates a problem with the AdBlue system, which is a crucial part of your van’s emissions control system. AdBlue is a fluid that is injected into the exhaust system to reduce harmful nitrogen oxides (NOx) emissions. When the light appears, it signifies that there’s an issue with the AdBlue fluid level, quality, or the system itself.
Common Causes of the AdBlue Warning Light
Here are some of the most common reasons why the AdBlue warning light might come on:
- Low AdBlue Fluid: The most straightforward reason is simply that your AdBlue fluid is running low.
- AdBlue Quality Issue: The AdBlue fluid may be contaminated or of poor quality, preventing the system from functioning correctly.
- AdBlue Sensor Malfunction: The sensor that monitors the AdBlue fluid level might be faulty, causing the warning light to illuminate even when the fluid level is adequate.
- AdBlue Injector Problem: The AdBlue injector, responsible for injecting the fluid into the exhaust, could be clogged or malfunctioning.
- AdBlue System Wiring Issue: Damaged wiring or connections within the AdBlue system can lead to malfunctions.
How to Troubleshoot the AdBlue Warning Light
Follow these steps to diagnose and address the issue:
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Check the AdBlue Fluid Level:
- Locate the AdBlue tank, usually situated near the fuel tank.
- Check the fluid level using the dipstick or gauge, depending on your model.
- If the level is low, simply refill the tank with the correct type of AdBlue fluid.
- Tip from Automotive Technician, Michael Smith: “Always use genuine AdBlue fluid as incorrect fluid can damage the system.”
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Inspect the AdBlue Fluid Quality:
- Look for any signs of contamination like dirt, debris, or discoloration.
- If the fluid appears compromised, drain and replace it with fresh AdBlue.
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Verify the AdBlue Sensor:
- If the fluid level is adequate and appears clean, the sensor might be at fault.
- You can consult a workshop manual for your specific model to determine the sensor’s location.
- It might require a professional diagnosis to verify the sensor’s functionality.
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Check the AdBlue Injector:
- The injector might be clogged, requiring cleaning or replacement.
- This step usually requires professional intervention.
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Inspect the AdBlue System Wiring:
- Look for any loose connections, damaged wires, or corrosion.
- If you find any issues, repair or replace the affected components.
Resetting the AdBlue Warning Light
Once you’ve addressed the underlying problem, you’ll need to reset the AdBlue warning light. Here’s a general guide:
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Start the Engine: Ensure your Ford Transit Custom is running.
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Turn the Ignition Key to the “On” Position: With the engine running, switch the ignition key to the “On” position, but do not start the engine.
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Press and Hold the Gas Pedal: Simultaneously press and hold the gas pedal for approximately 10 seconds.
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Release the Gas Pedal: After 10 seconds, release the gas pedal.
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Turn the Ignition Key to the “Off” Position: Turn the ignition key to the “Off” position.
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Restart the Engine: Restart the engine.
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Check the Warning Light: The AdBlue warning light should have been reset. If not, you may need further assistance from a mechanic.
Common Mistakes When Resetting the AdBlue Warning Light
Here are some common mistakes that can prevent the light from being reset successfully:
- Not Holding the Gas Pedal Long Enough: Ensure you press and hold the gas pedal for the full 10 seconds.
- Attempting to Reset the System Before Addressing the Problem: If the AdBlue system still has a fault, the light will likely reappear.
- Using the Incorrect Procedure: Make sure you’re following the correct reset procedure for your model.
Troubleshooting and Resetting the AdBlue Warning Light
If you’re unable to resolve the issue yourself, it’s essential to seek professional help. A qualified mechanic can diagnose the underlying problem, repair any faulty components, and reset the warning light correctly.
Frequently Asked Questions
Q: Why is the AdBlue warning light flashing?
A: A flashing AdBlue warning light usually signifies a serious problem. It could indicate a low AdBlue fluid level, a system malfunction, or a contaminated fluid. It’s crucial to address this issue promptly.
Q: How often should I refill the AdBlue tank?
A: The AdBlue fluid consumption depends on your driving style and usage. You’ll typically need to refill the tank every 500-1000 miles. Consult your owner’s manual for specific information.
Q: Can I drive with the AdBlue warning light on?
A: While you can drive with the AdBlue warning light on for a short period, it’s not recommended. The light indicates a potential issue with the emissions system, and driving for extended periods could damage the engine or lead to legal repercussions in some jurisdictions.
Q: How do I dispose of used AdBlue fluid?
A: AdBlue fluid is not harmful to the environment. It’s biodegradable and can be disposed of through designated waste disposal sites or authorized recycling centers.
Q: What is the cost of AdBlue fluid?
A: The cost of AdBlue fluid varies depending on location and retailer. However, it’s generally quite affordable.
Q: How can I prevent the AdBlue warning light from coming on?
A: The best way to prevent the AdBlue warning light is to ensure the system is properly maintained. Regularly check the AdBlue fluid level, use high-quality AdBlue fluid, and be aware of potential contamination.