- Fredericton Canada
- 2018 CX-5 GT
Apparently, most of the cracked head issues seem to be happening with 2.5L NA models with CD but there have also been issues with the 2.5L turbo models. The NA CD models I believe tend to ooze oil out of the cracks in the head in the rear of the engine between cylinders 3 and 4 just above the exhaust manifold, while most of the turbo models with cracked heads tend to leak coolant, if I'm not mistaken.Does the issue have anything to do with cylinder deactivation?
I just heard that, due to supply chain issues, vehicles built in October and November 2023 will be missing cylinder deactivation and the iStop auto start/stop. The window sticker will show an MPG decrease on the affected vehicles.
If that also solves the cracked cylinder head issue, I might jump on that and buy a CX-5 manufactured during this time window.
Avoiding a CD model seems to be a decision that a few others have now wanted to do, but it remains to be seen if all CD models will eventually display cracked heads. We live in hope that Mazda will eventually own up to exactly what caused the problem. It is unlikely they will do a recall but an extension of the warranty would go a long way in restoring faith amongst many who own models with CD.
For the record, the 5 year warranty on my 2018 NA 2.5L with CD expires the end of next month and while I'm not experiencing any problems at 58,000 km I'm a little worried what might happen post 2023. I don't drive my CX-5 hard, but I'm starting to baby it a bit more going forward.