SCR

Replacement SCR (selective catalytic reduction) catalysts: the part of an AdBlue diesel exhaust that uses AdBlue to cut nitrogen oxides. The unit listed here is type approved and fits Audi, SEAT, Skoda and Volkswagen models from 2014 to 2018, with its fitting kit and a 2-year warranty.

On many Euro 6 diesels the SCR catalyst shares a housing with the particulate filter: see SCR & DPF, or start from your vehicle in the vehicle list.