If you or someone you know drives a diesel car, then you may have heard of AdBlue. AdBlue is a special fluid that is made for diesel cars, and it helps to reduce harmful emissions which can help the environment. AdBlue works as part of the Selective Catalytic Reduction (SCR) system, which works by converting nitrogen oxide into harmless nitrogen and water vapour. This can help reduce air pollution. In this article, we will address the common AdBlue problems, how they can affect your vehicle and how you can fix them and if AdBlue software Programming is a good choice to help.
Common AdBlue problems:
- Freezing issues – since AdBlue is a liquid, it can actually freeze at around -11°C (12°F). This happening can cause system failures in colder climates. Although some more modern vehicles have heating systems for the AdBlue tank, if this does malfunction, frozen AdBlue can cause starting issues and SCR system failure.
- Contamination – It is crucial that AdBlue be kept free from contaminants like dirt, fuel and also tap water. Any level of contamination can damage the SCR system and lead to expensive repairs. It can also cause chemical reactions that render ineffective, triggering fault codes and engine derating.
- Crystal formation and Blockages – AdBlue is made up of 32.5% pig urea and 67.5% deionised water. If it is exposed to air or extreme temps, it can crystalise which leads to clogged injectors, pipes, and pumps. If a blockage does occur, it can disrupt the flow of AdBlue which will stop it reaching the SCR system, this may cause the engine warning light and reduced vehicle efficiency.
- Increased Maintenance Costs – Due to the AdBlue system needing so much maintenance and refilling, it adds significantly to the running costs. Replacing injectors, cleaning crystal build up and repairing broken sensors will add up.
- Sensor and Pump Failures – The AdBlue system practically relies on sensors and pumps to regulate the correct dosage. Having faulty sensors can falsely indicate low levels or system malfunctions. Also, failing pumps can stop AdBlue delivery all together which causes emission-related faults and potentially reduces engine power.
How to prevent/fix AdBlue Problems
- Regular Maintenance: Ensuring you service the AdBlue system, including flushing injectors and cleaning the SCR components, can help prevent clogging and contamination issues.
- Correct Storage and Handling: AdBlue should be stored in a cool, dry place and only poured using clean equipment to avoid contamination.
- Using High-Quality AdBlue: Ensuring that you use certified AdBlue from reputable suppliers reduces the risk of impurities and system damage.
- Keeping the System Heated in Cold Weather: If used in cold environments, ensure the heating system within the AdBlue tank is working correctly to prevent freezing.
- Timely Sensor and Pump Replacements: If sensors or pumps fail, replacing them quickly can prevent further damage to the SCR system.
Custom AdBlue Software Programming
Some vehicle owners and fleet operators are starting to consider custom AdBlue software programming. This process involves a specialist flashing new custom-made software into the ECU which stops the vehicle from being able to enter limp mode for AdBlue faults and NOX sensor problems. It also prevents the mileage countdown to limp mode and non-engine starting situations. It also stops AdBlue warning lights. This option is legal in the UK as no black boxes are used and no fuses are removed so it is a good solution for people looking to avoid these AdBlue issues.
Pros of Custom AdBlue Software Programming:
- Eliminates the chance of limp mode or non-engine starting situations which can be inconvenient for a lot of people and fleet operators.
- Prevents engine warning lights caused by AdBlue problems.
- Stops the countdown until non engine starting so it won’t put anyone under time pressure.
In conclusion
As can be seen from the points in this article, AdBlue Problems are real and can have a massive effect on your vehicle. they can be rather expensive to fix and also time-consuming. While there are ways to prevent these problems from occurring in your car, it isn’t definite that you can stop them from happening. Therefore, it is important to keep Custom AdBlue Software programming in mind as it eliminates the warning light, limp mode and non-engine starting situations and this is good for people like fleet operators or commuters who need to drive. So while AdBlue problems do exist, there are ways we can help to prevent them.
