Work In Progress..
- '18 CX-9 Signature
2.5T Engine Coolant Leaking TSB
Moderator edit: This is a copy of a post originally made in another thread. This thread was created for easier reference. Mazda recently put out this TSB for coolant leak because of cracks in the cylinder head. As reported by many here it seems to affect the 2.5T 2016-2020 CX-9 as well as...
Applicable to 2019-2020 Mazda CX-5 GT Reserve and Signature trims (refer to VIN range).