AdBlue Problems? 7 Common AdBlue System Faults and Fixes in Newcastle
If you drive a modern diesel vehicle around Newcastle you may have seen the dreaded “AdBlue” warning light and wondered what next. In this article we’ll look at the 7 most common AdBlue system faults, how they show themselves, what causes them and how you can fix or avoid them with the right service in Newcastle. We’ll guide you through the process, from contaminated AdBlue, to mis-filling errors, delete options and how a Certified AdBlue service in Newcastle can save you time, money and stress on your engine. Let’s get down to business and put your AdBlue worries to bed.
What is the AdBlue system, and why does it fail?
The AdBlue system (also known as SCR, Selective Catalytic Reduction) injects a urea-based fluid (AdBlue) into your exhaust to cut down on harmful NOx emissions. Symptoms can include warning lights, limp mode or engine derate if the system is not working correctly. Sometimes these problems occur after an incident of mis-fuelling or contamination of the fuel. Failures are caused by a blocked, contaminated or defective tank, dosing pump, injectors or sensors, or simply wrong fluid level.
7 Common AdBlue System Faults
- Low AdBlue Level
One of the most common causes of warning messages and start restrictions is a low or empty AdBlue tank.
- Faulty AdBlue Tank Sensor
It can also give incorrect fluid levels and cause warning lights to illuminate on the dashboard.
- Blocked AdBlue Injector
Crystallisation can limit the flow of the injector and influence SCR system performance.
- AdBlue Pump Failure
The dosing pump sprays AdBlue into the exhaust system. Failure may cause emissions faults and warning lights.
- Contaminated AdBlue Fluid
Contaminated or poor quality fluid can harm components and decrease system efficiency.
- SCR System Malfunction
Problems with the Selective Catalytic Reduction system can trigger limp mode and engine derating.
- NOx Sensor Failure
Faulty nitrogen oxide sensors can cause emissions to be misread, and the system to alert. Sense emissions levels and trigger system warning.
Why is my AdBlue warning light on?
There are many reasons why you might see a warning on your dashboard about the “AdBlue system”. It could be:
- AdBlue level is too low or empty
- AdBlue tank sensor is faulty and reporting wrong.
- The dosing pump or injector is clogged or crystallised.
- The fluid is contaminated or of poor quality. “You can drive it but you won’t clear the system until you have it fixed.”
How often should I top up AdBlue in my vehicle in Newcastle?
Most modern diesels will give you plenty of warning that your AdBlue is running low before it actually runs out, so there is no need to top up every day. But:
- Always follow your manufacturer’s interval.
- If you do a lot of short journeys (common in city or Newcastle traffic) then the system may not get up to full temperature and may use more Adblue.
If a warning has been ignored for a while the system may need resetting or a diagnostic even after topping up.
Can contaminated or poor-quality AdBlue cause damage?
Yes, poor quality or adulterated AdBlue can cause serious issues:
- Deposits and crystals build up and block injectors, pipes or the dosing system.
- Grit can destroy sensors and pumps. Failure can be caused by corrosion or other chemical changes in the fluid.
If you notice any strange exhaust smoke, poor performance or an AdBlue warning after refilling, contamination is the most likely cause.
Can You Drive With an AdBlue Warning Light?
In many cars you can continue driving with the AdBlue warning. But if this warning is ignored, it can cause the engine to not start, go into limp mode or cause other system failures.
Drivers are being advised to get their vehicles diagnosed as soon as possible to find out what’s wrong and avoid more expensive repairs.
Conclusion
Ignore AdBlue warning lights and SCR system faults at your peril. Some problems are as simple as a low AdBlue level, others may be contamination or a component failure that can affect vehicle performance and emissions compliance. The sooner you get on it and have professional diagnostics done, the better chances you have of avoiding more expensive repairs. If you need a professional Newcastle driver help service, Wrong Fuel Help is there with AdBlue and diesel fuel recovery services, ready 24 hours a day, 7 days a week, to get you safely back on the road.
FAQ’s
Frenquently Asked Questions
AdBlue system faults can range from simple low-fluid warnings to more complex issues involving sensors, injectors, pumps and SCR components. Understanding the warning signs early can help prevent reduced performance, limp mode and unnecessary repair costs.
Whether the problem involves contaminated AdBlue, faulty sensors or system blockages, prompt diagnosis is the best way to keep your diesel vehicle operating safely and efficiently.
