Diesel Exhaust Fluid (DEF)

In Spanish the standard term is Urea / DEF, and in Brazil ARLA 32. Depending on the country it is also called Urea, DEF, AdBlue or ARLA 32.

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Diesel Exhaust Fluid (DEF)Photo: Lenborje · CC BY-SA 4.0 · Wikimedia Commons
Exhaust & emissions · Sheet 53 / 111

Diesel Exhaust Fluid (DEF)

Spanish: Urea / DEF · Portuguese: ARLA 32
4 different names
Mexico
Urea / DEF
Central America
Urea
Panama
Urea / DEF
Colombia
Urea / AdBlue
Venezuela
Urea
Ecuador
Urea
Peru
Urea / AdBlue
Bolivia
Urea
Argentina
Urea / ARLA 32
Chile
Urea / AdBlue
Uruguay
Urea
Spain
AdBlue
Brazil
ARLA 32
What it does

Solución de urea al 32.5 % que se inyecta en el escape (SCR) para reducir NOx en diésel.

When to replace it

Es consumible: rellenar. Nivel bajo activa testigo y limitación de potencia. Solo DEF certificado ISO 22241; nunca agua ni urea agrícola.

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 DEF / SCR system Sistema DEF / SCR 8 names EGR valve Válvula EGR 2 names
← DEF / SCR system EGR valve →