DEF / SCR system

In Spanish the standard term is Sistema DEF / SCR, and in Brazil Sistema SCR / ARLA 32. Depending on the country it is also called Sistema de urea, SCR, Postenfriamiento, Sistema SCR, de urea or Sistema AdBlue.

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Exhaust & emissions · Sheet 52 / 111

DEF / SCR system

Spanish: Sistema DEF / SCR · Portuguese: Sistema SCR / ARLA 32
8 different names
Mexico
Sistema de urea / SCR/Postenfriamiento
Central America
Sistema SCR
Panama
Sistema SCR
Colombia
Sistema SCR
Venezuela
Sistema SCR
Ecuador
Sistema SCR
Peru
Sistema SCR
Bolivia
Sistema SCR
Argentina
Sistema SCR / de urea
Chile
Sistema SCR / Sistema AdBlue
Uruguay
Sistema SCR
Spain
Sistema SCR / AdBlue
Brazil
Sistema SCR / ARLA 32
What it does

Tanque, bomba, dosificador, sensores de NOx y catalizador SCR que tratan el escape diésel.

When to replace it

Códigos de NOx o de calidad de DEF, cristales blancos en el dosificador, derate de potencia.

Technical sheet available in Spanish only for now.

Other parts in the same system: Exhaust & emissions

Catalytic converter Convertidor catalítico 3 names Diesel Particulate Filter Filtro de partículas (DPF) 3 names Muffler Silenciador 5 names Diesel Exhaust Fluid (DEF) Urea / DEF 4 names EGR valve Válvula EGR 2 names
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