What is AdBlue, and how does it work? What does SCR (Selective Catalytic Reductions) do

Both the government and the automotive industry have to make efforts to reduce vehicle emissions, improve air quality and protect human health. Euro 6 regulations, which were introduced by the EU in 2016, required that diesel vehicle manufacturers find new ways to reduce harmful emission. They needed to find new ways to reduce nitrogen oxide emissions. AdBlue has been used in diesel cars as a result.

What is AdBlue?

AdBlue is a term that you will have heard if you’ve bought a diesel vehicle in recent times. AdBlue is a liquid that contains a mixture of pure water and urea mixed with the exhaust system. This helps reduce nitrogen oxide emissions from diesel engines. The mixture is composed of 67.5% water and 32.5% urea. Also known as “Selective Catalytic Reduction (SCR/Selective Catalytic Reduction).” .

AdBlue is the common name for the fluid that is used in diesel cars. It is registered as a trademark by the German Automobile Industry Association, (VDA).

 

How does AdBlue function?

AdBlue is kept in a separate container. The fluid is checked periodically during maintenance. If it is not there, it is replaced. It is not injected in the engine in any other way. Small amounts of AdBlue are sprayed into exhaust gases by SCR (Selective Catalytic Response) technology. The AdBlue is incorporated into the exhaust pipe, which is located in front the SCR catalyst. The harmful Nitric Oxides, (NOx), are reduced into water and nitrogen by this reaction and released into the atmosphere in the form of steam.

This technology is used in all buses and trucks that have been built since 2006. Its effectiveness and reliability has been established.

How do I know if my vehicle has AdBlue?

SCR and AdBlue technology are often found in luxurious and high-end diesel vehicles. The salesperson will tell you briefly if the vehicle has Adblue. Some vehicles include an AdBlue blue cap filler next to their fuel filler caps. The filler may be located in the trunk, engine compartment, or both. Check your vehicle manual to find out the location of the filler.

 

How Often Do You Need to Refill AdBlue

AdBlue is not required if your annual mileage falls below the recommended limit. All routine checks can be done during service maintenance. The AdBlue will drop faster if the vehicle is used a lot.

The vehicle’s make and model will determine the capacity of the AdBlue liquid tanks. Volkswagen Tiguan SUVs have a 12-liter AdBlue Tank, Passat cars have a 13.-liter AdBlue Tank.

The driving style will determine the amount of AdBlue consumed. AdBlue consumption is lower the more economical the vehicle is used. Passat and Tiguan consume 1.5 liters of AdBlue per 1000 km. Tiguan has a tank of AdBlue that lasts between 5000 and 6500 km. Passat can travel between 6500-10000 km. Between, you can finish. AdBlue, which is required for Peugeot vehicles, must be topped up at 20,000 km. This includes the maintenance.

 

How can I tell when AdBlue is over?

Warning lights are found on most vehicles, similar to the warning lamps that indicate when the fuel or windshield fluid is low. This warning lamp will light up and notify the driver if the AdBlue level drops or is high. The vehicle will not start if the AdBlue fluid is low.

AdBlue is typically filled as routine maintenance. You can also fill the AdBlue yourself. AdBlue filling machines are found at many gas stations. It is also possible to purchase it from an external source and store it in the vehicle’s trunk for a spare.

AdBlue fluid is recommended by the manufacturer if your vehicle still has warranty. Your vehicle could be considered out of warranty. Check that AdBlue packaging contains ISO 22241.