26F500 SCR system efficiency, 26EF00 Nox sensor after SCR Nox deviation to high. BMW 520D

26F500 SCR system efficiency, 26EF00 Nox sensor after SCR Nox deviation to high.
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launch euro tab, SCR faults, Nox sensor, SCR efficiency, BMW, car, mechanics
#cars #garage #chrisfix #fastcars #fix #mechanic #mechanical #car #520d #5series #bmw

[@prashlovestech]

Really useful and helpful video to understand how the Ad blue and NOX sensor works.

[@TRONICSfer]

Just had check engine light on my 2019 g32 520d. The BMW garage told me it's a nox sensor and they will need to do further examination (I gues similar you did). But the strange thig is that car has only 77 000 km and there was no ad blue error, just check engine light ... Is that normal on this mileage?