What is the SCR (DEF / AdBlue) system? SCR is a Selective Catalytic Reduction system, the purpose of which is to minimize emissions of particulate matter (PM) and nitrogen oxides (NOx) in diesel engines. The entire process takes place in a catalytic converter installed in the exhaust system. Nitrogen oxides are converted to nitrogen and …
AdBlue – what is it and what is it used for? AdBlue is the trade name for a high-purity diesel exhaust fluid – a 32.5% aqueous urea solution. It is a registered trademark owned by the Verband der Automobilindustrie. The fluid is used by the SCR system in the catalytic converter to clean the exhaust …
What is an SCR emulator? The SCR emulator is a device that simulates the operation of a fully operational DEF/SCR system (AdBlue / urea dosing). Therefore, the engine ECU does not limit power or torque and does not report errors caused by exceeding exhaust emissions. The DEF emulator “replaces” all sensors related to the SCR …
