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International Automotive Technicians Network
Re: 2012 BMW XDRIVE35D
Posted to Emissions Forum on 6/1/2019

Mark beat me to it. SCR is for Selective Catalyst Reduction.

Selective Catalytic Reduction (SCR) System 3.0L Diesel Engine Diesel exhaust gas exiting from Diesel Particulate Filter (DPF) contains oxides of nitrogen (NOx). The exhaust gas from the DPF is route... Login to read more.