Servicing time period

[mattCSLnut]

From what I know (and that isn't much) M cars need an Oil service every 12 months, regardless of mileage. IMHO 3 year service gap is far too big on an M car. I wouldn't do that to my BMW Dieseasal Great idea to go for the Comprehensive Inspection 2 Service now, which will include most fluid change. I'm not sure if the coolant is included but I would ask to have it change as well.