Check engine light & P229F-00 fault code

[bordeaux]

New day, new fault!

Already have the van booked in for a leak on the transfer case & now the check engine light is on. Don't have access to a Merc specific scanner at the moment but my scanguage has read this code: P229F-00 (NOx sensor, bank 1 sensor 2-No sub type information) Is this just the NOx sensor or something more?

 

[RVBarry]

Hi,
Year, engine, miles/kms, location?

Could be the sensor or damaged wiring.

 

[bordeaux]

Hi,
Year, engine, miles/kms, location?

Could be the sensor or damaged wiring.

Hi RVBarry

2020 316 4x4
87,000 km
Location: EU

It's going the MB dealer Thursday for this and another fault, will being interesting to see what they find.

 

[bordeaux]

Fault fixed, it was a faulty downstream NOx sensor replaced under warranty.

 

[maxpower29]

I had this today and cleared it with the scangauge2. Drives fine. I'm curious if you know if this will make it go into limp mode of it comes back?

 

[bordeaux]

I didn't clear the code, the dealer just replaced the nox sensor. Probably won't go into limp mode if you keep clearing it.