Although the TSB mentioned only cracks on cylinder head for the 2.5T, but the fact is Mazda is replacing the entire engine (or long block) for the problem doesn’t add up. Some members even been told by the Mazda dealer that the crack is on the back side of cylinder block. Either there’re more stories haven’t been told, or there will be more TSBs coming out for this problem.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Moderator edit: This is a copy of a post originally made in another thread.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...mazdas247.com
Applicable to 2019-2020 Mazda CX-5 GT Reserve and Signature trims (refer to VIN range).
This’s a design issue, nothing you can do to prevent it. May be just drive less as the problem just started to show up mostly on earlier CX-9’s with 35K ~ 60K miles.
Yeah, drive less! That's a good solution. I'll tell my boss I can only come to work three days a week.
Yeah, sorry read too fast. It’s “prevalent”!
Based on the 3-month wait time to get a replacement new engine or long block, and it seems the entire US has run out of the replacement engines, this has to be more common than Mazda expected. The other thing is Mazda says in the TSB that the design of the exhaust manifold gasket and the cylinder head has been modified to reduce the force on the cylinder head which caused the crack. So they’re not comfortable unless newly revised parts, including cylinder head which may not be produced enough quantity at this time, been put into the new engine. They simply just don’t have enough revised parts to produce new engines.
makes me want to move to Canada
My New 2022 CX-5 has leaked zero I just check the Coolant yesterday as a matter of fact. My current milage is 4374
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Yes, it’s been posted here before in CX-9 forum:I don't know if this video has been posted here, but since this is a current topic I found this CX-9 head gasket replacement video interesting. I wasn't aware of any 'coolant plugs' that could leak and how they are covered up and the mechanic goes on to say they should be addressed while apart or it may have to come apart again. It's interesting how Mazda incorporated the exhaust manifold into the head, also this is shown towards the end of the video. It's also amazing the amount of parts removed to replace the head gasket. As always, check out the viewer comments.
Why does it cost over $4K to replace a simple $50 gasket? CAR WIZARD shares why it costs so much!
Third in a new series that explains what specific repairs are, why they cost what they do and what it makes it cost over $4K to replace. This third episode i...
