W212 E350 2014 YM.
Petrol.

Man this thing eats these sensors.... To be fair the last two it ate were bank 2 sensors this time its bank 1 which I haven never replaced but TBH im getting tired of this and dont see why it should need constant replacement of these hideously expensive sensors?


Has anyone else ended up replacing these nox sensors about every year and half to 2 years like clockwork? Its not like we do huge mileage in this car either.... It does see alot of around town driving though.

I have looked at realtime running values with the car running and nothing looks abnormal.