2016~2023 CX-9 Oil leak on valve cover

[yrwei52]

⋯ Change the oil every 3k miles due to consumption from the turbo.

What consumption from the turbocharger? The two I've owned (Volvo & Mazda, don't know who made the turbochargers) never consumed any. In any case, oil consumption is no reason to change the oil & filter early. Add oil if needed, then change on schedule.

Depending on OP’s MY, there’s a TSB for a batch of inferior valve stem seals which caused the oil consumption issue on the 2.5T. He’d better to get it fixed ASAP under warranty if his CX-9 is on the list.

Mazda CX-5 (and other models) Oil Consumption TSB (WTF)

 

[yrwei52]

Just an update on my oil control vvt solenoid leak. Dealer replaced the entire valve cover for the repair, not just gaskets. Here is the part number on my invoice:
PY8W-10-210B

Actually this’s a known issue and the leak is actually coming from the VVT solenoid / oil control valve (OCV), part no. PE01-14-420A, itself. This has been discussed many times in CX-5 forum.

Oil patches on Engine cover - 2022 CX-5

2014 CX5 Tune-Up items to replace?

Honestly changing the grommet for OCV, or changing the valve cover with the gasket won’t fix the problem.

Also noticed this VVT solenoid / OCV PE01-14-420A used to be $110 ~ $160, now it costs at least $230 with the $345.05 MSRP!!!

 

[Tchman2016]

Just checking to see if that valve cover and seals they installed fixed your oil leak?

So the verdict is .. dry as a bone. No seepage, no leaks. So, as far as it goes right now, my OCV itself is not leaking. My wifes 2021 CX-5 sig IS leaking from the same area with only 7k miles when I noticed it a couple months back Could be the valve cover as well or the OCV but have not brought into dealer yet.

 

[Dmilli562]

Just noticed this leak on my oil change.... Anyone know the cost?

 

[Tchman2016]

Just noticed this leak on my oil change.... Anyone know the cost?

I believe this would be part of the powertrain warranty, 5 year/ 60k miles. Are you out of warranty? Someone correct me if im wrong.

 

[yrwei52]

I believe this would be part of the powertrain warranty, 5 year/ 60k miles. Are you out of warranty? Someone correct me if im wrong.

Yes, this kind of problem (oil leaks) is covered under Mazda’s 5-year / 60K-mile powertrain warranty.