Are you still code free?
I was going to get Mountune Stage 1 with TCU for my 2016 estate, but held off when they had the financial / ownership stuff going on last year, and then saw this P0299 issue. Looks from my reading like some people - Dan included - get on ok despite the code, but as i am a worrier I would want it to be code free for me and without having to change any hardware. So if you get any more info from Mountune on the issue / fix I would be really interested to know
Thanks
Chris