What is AdBlue?

AdBlue transforms harmful NOx from your diesel vehicle's exhaust gases into harmless nitrogen and water vapor, significantly reducing nitrogen oxide (NOx) emissions, a major source of atmospheric pollution leading to smog in urban centers.

"SCR" stands for Selective Catalytic Reduction, the diesel engine combustion technology that reduces NOx emissions. SCR requires the use of a reagent called AdBlue. Nearly all major engine manufacturers have opted for this technology to comply with new NOx emission legislation.

Key components of the SCR system include:

• SCR Catalyst
• AdBlue Injection Block
• AdBlue Tank
• AdBlue Injection Control Block

AdBlue is injected from the AdBlue tank into the exhaust pipe before the SCR catalyst, downstream from the engine. When heated in the exhaust gases, AdBlue transforms into ammonia (NH3) and carbon dioxide (CO2). As gaseous nitrogen oxides (NOx) from the exhaust pipe react inside the catalyst with ammonia, harmful NOx molecules are converted into harmless nitrogen and water, released into the atmosphere as steam.

These systems often face issues with control modules or blocking systems, triggering emergency modes. Repairing AdBlue systems can sometimes become cost-prohibitive.

We can assist you in resolving AdBlue issues. Contact us at info@optodiag.com