Hi all,
I have a 2017 (March 17) C250D W205
My EML comes on and off, P229F code (downstream Nox sensor). The EML comes on for a few hundred miles then turns off for a few hundred miles, happened like that 4 times now. Ad blue still seems to be going down so on the face of it looks like its working.
Im not interested in a delete or remap, I just want it all to work. Has anyone encountered exactly the same thing and found the solution? Or can someone explain what could be happening here?
The downstream Nox sensor was changed at Mercedes about 2.5 years ago, could be that it needs changing again but I’m really looking to see what others have experienced with the same symptoms.
Btw ad blue injector cleaned.
I have a 2017 (March 17) C250D W205
My EML comes on and off, P229F code (downstream Nox sensor). The EML comes on for a few hundred miles then turns off for a few hundred miles, happened like that 4 times now. Ad blue still seems to be going down so on the face of it looks like its working.
Im not interested in a delete or remap, I just want it all to work. Has anyone encountered exactly the same thing and found the solution? Or can someone explain what could be happening here?
The downstream Nox sensor was changed at Mercedes about 2.5 years ago, could be that it needs changing again but I’m really looking to see what others have experienced with the same symptoms.
Btw ad blue injector cleaned.
