Just took my 2018 CX-9 with just under 82K miles to a mechanic buddy of mine because it just started leaking coolant. I'd been smelling a burning smell for a few weeks now, but could not find the source. The mechanic found the TSB and suggested I go to Mazda. We'll see what they say. This is my 6th Mazda. May be my last one if they don't treat me right.