I will ask the questions when I go into pick it up...So shiny! Wish there was a way to tell if there were revisions made to the new engine to address these potential coolant leaking issues.
No. Just the Skyactiv-G Turbo.Just wondering do the regular 2.5 engines without the turbo have this same problem with the coolant leaking?
To be fair, it’s still not a super common problem. People also turbo older Mazda engines without issues (thinking specifically Miata’s) so the “heads and bottom end” could have passed through Mazda’s engineering team and been given the green light to turbo as is. But as @youri said, you are making an assumption they did nothing other than “slap a turbo” on the existing engine. I guarantee you they did not just decide one day to throw that turbo on and push it customers without testing it.Hi Andrewnds. Based on your answer i suspect that they just took the regular skyactiv 2.5 and slapped a turbo on it without upgrading the heads or the bottom end of this engine. As the other poster said mazda told him that there was a crack in the head. Makes you wonder what they were thinking when they did this, should have been with upgraded heads and bottom end.
I have no "official" answer to that, but from my knowledge they wouldn't do that. They didn't do that with the last gen turbo DISI engine and I doubt they'd do it now. I couldn't see that being possible, too much would need to be changed (compression ratios, stronger connecting rods, more fueling etc).Hi Andrewnds. Based on your answer i suspect that they just took the regular skyactiv 2.5 and slapped a turbo on it without upgrading the heads or the bottom end of this engine. As the other poster said mazda told him that there was a crack in the head. Makes you wonder what they were thinking when they did this, should have been with upgraded heads and bottom end.
Hi Andrewnds. Based on your answer i suspect that they just took the regular skyactiv 2.5 and slapped a turbo on it without upgrading the heads or the bottom end of this engine. As the other poster said mazda told him that there was a crack in the head. Makes you wonder what they were thinking when they did this, should have been with upgraded heads and bottom end.
I spoke to Mazda USA and they pretty much said "good thing you bought an extended warranty".
My wife's 2017 cx-9 is having the engine replaced right now with 74,xxx miles on it.Is it just me or do these failures happen around 50K - 60K miles? Has anyone seen some encounter this issue with a more high mileage vehicle? Perhaps it's the sort of problem where if it will present itself it will do so within a certain time otherwise you have a "good one" and it'll just last as long as any other engine. In other words, those that will fail will fail "early", or whatever you call 50K - 65k miles.
Having said that, mine is at the 65,000 mile mark (105,000km), so I might be right at that moment of truth myself! (last I checked my coolant level is right where it should be, knock on wood)
Without some sort of verification from Mazda or a lot more people that are supposedly receiving those 1000+ engines, I wouldn’t trust a FB post. Who is this guy? At any rate, let’s say they are correct and this is the second half of all the engines that have been replaced, that’s still 2,000 out of 145,019 sold from January 2016 to July 2021. That gives a failure rate of 1.3%. Even doubling that to 4,000 engine replacements is only 2.6%. While it does suck for those that need to get their engines replaced, and I do feel bad for those that have to go through it, it still doesn’t seem to be widespread enough to really worry about. Keep some healthy awareness that it could happen, but I wouldn’t expect it to just be a matter of time. Maybe in two years I’ll eat my words and the vast majority of the pre-reinforced engines will be replaced, but I just don’t see that happening.Saw this on FacebookView attachment 301962