nox sensor
I have a 5 year old c200. Nox sensor was replaced after 2 years under warranty.
It's gone again . A local garage carried out the diagnostics. Phoned MB dealer and they were vague about replacing FOC.
They want to do their own diagnostic and the cost of that and pickup is close to £200.
Any advice on what to do here. Seems like Nox sensor faults are pretty systemic in mercs. This could be very expensive if I have to keep replacing nox sensors every couple of years.
Cheers
Kevin


