Hi all
i have a P229F error code on my 2015 E220 which I have read is the Nox sensor (1of 2 sensors)

if I just replace the sensor will this be the end of the matter? Is their a common cause for the sensor to fail?

I drive @ 70mph for 35 miles each way every day to work so I think has a good run to heat up the gasses. Is there anything else I can try?

thank you for any help

 

I had that code, it may not be 1 of 2, it may be both, do a proper scan.

and as far as I found it’s not just a plug-in they need to be coded.

original mb nox sensors here is $1000 Canadian each + labour, I had the system deleted.