Hi folks,    Hopefully you can help, got a 16 plate Diesel L&K Superb 190 hatch with 69k miles and it's showing up that the air quality sensor is faulty. I plugged in my OBDEleven unit and the code thrown up was B10AF04.   I've not noticed any issue with the climate control system so far, but is this part an easy replacement/fix?    Had a few other sensors throwing issues so this car seems to be a bit of a lemon, and I'd like to get it back running as it sh