2013 35d nox code

madbim · 12-02-2016, 09:00 AM

Recently picked up a 35d, throwing the codes below. I searched and couldnt find much of anything regarding these codes. Where do I start?

DeNOx system efficiency: efficiency is to low in the range 1 code: 0042FC
DeNOx system efficiency efficiency at low code: 004D18

ntailor · 12-04-2016, 06:45 AM

I had that come on before. Dealer changed my nox sensors under warranty

Kakalika · 12-04-2016, 09:21 AM

Yep, NOX sensors, will trigger the check engine light.

madbim · 12-06-2016, 10:10 PM

I was in the dealership for disabling the combox, they noticed it had a recall on nox sensor. They completed the work and indicated it could be the source of the codes indicated, code hasn't come back since.

ingenieur · 12-08-2016, 07:38 PM

Quote:

Originally Posted by madbim

I was in the dealership for disabling the combox, they noticed it had a recall on nox sensor. They completed the work and indicated it could be the source of the codes indicated, code hasn't come back since.

What exactly did they replace/repair?
What part numbers are on the invoice?

12-02-2016, 09:00 AM	#1
madbim Private First Class 32 Rep 160 Posts Drives: 08' E90 335xi Join Date: May 2011 Location: Madison, WI iTrader: (0)	2013 35d nox code Recently picked up a 35d, throwing the codes below. I searched and couldnt find much of anything regarding these codes. Where do I start? DeNOx system efficiency: efficiency is to low in the range 1 code: 0042FC DeNOx system efficiency efficiency at low code: 004D18
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12-04-2016, 06:45 AM	#2
ntailor Second Lieutenant 176 Rep 215 Posts Drives: i5 M60, X7 M60i Join Date: Aug 2016 Location: Philly, PA iTrader: (0)	I had that come on before. Dealer changed my nox sensors under warranty
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12-04-2016, 09:21 AM	#3
Kakalika First Lieutenant 101 Rep 302 Posts Drives: 2014 X5 35d M Sport Join Date: Jan 2013 Location: Houston TX iTrader: (0)	Yep, NOX sensors, will trigger the check engine light. __________________ RUN FLAT TIRES? NEIN DANKE!
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12-06-2016, 10:10 PM	#4
madbim Private First Class 32 Rep 160 Posts Drives: 08' E90 335xi Join Date: May 2011 Location: Madison, WI iTrader: (0)	I was in the dealership for disabling the combox, they noticed it had a recall on nox sensor. They completed the work and indicated it could be the source of the codes indicated, code hasn't come back since.
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