Nox sensor fault

[Benz Carl]

I’ve just bit the bullet. After ringing around I’m paying approx £1400 for Nox sensor replacement, timing chain and tensioner.

Nox sensor - £660
Timing chain and tensioner - £720

Most places were saying something similar (maybe cheaper replacing Nox but then higher for timing chain) so getting it done.

My car is only a 2014 and it’s been an absolute nightmare with all these repairs. Couldn’t bought a better one with all the extra I have paid. But once done hopefully will last me a few years.

Ps and now I find that the cushion driver side heater doesn’t work but I’m leaving that. :-(

Thank you, so sorry, hope all will be good
My sensor only needs cleaning I think because if I keep the car on a verge or downhill it goes away but can’t find the answer yet of where his position is, and now I discover on your thread that there are 2 nox sensors.
Just refilled the adblue no issues there.