Originally Posted by Ajnorris

The dealer ended up replacing the NOX sensors for free and told me I have a bad SCR catalyst (and a quote for over $2k to replace.) The paperwork said they ran the urea dosing check but I have my doubts they actually did. Anyway I found a used low mileage scr catalyst on ebay for $150 so I figure that plus a new dosing injector + cleaning everything with warm water is an order of magnitude cheaper than letting the dealer throw parts at the car. I'll post an update on the weight of the solution dispensed once I change the dosing unit and clean everything.
Couldnt get them to change the active tank since the code wasnt currently active when I brought it in.. guess Ill just wait a week or two. At least I got a free car wash. I brought in screenshots.