Can a 2024 CX-5 Thermostat be used to replace a 2021 CCV?

[jordan5100]

Hi everyone,

I recently purchased a 2021 Mazda CX-5 and I've been reading about common issues with the CCV (crankcase ventilation valve). Apparently, the CCV can go bad and needs replacing sometimes, which can be a hassle.

I noticed that the thermostat housing on the 2024 CX-5 looks very similar to the CCV on my 2021 model. The engines are also identical (2.5 NA), which makes me wonder if the 2024 thermostat could be a possible replacement for the CCV on earlier models.

Here's what I'm thinking:

• The 2024 thermostat seems like a direct replacement based on appearance and the fact that the engines are the same.
• The CCV's coolant temperature sensor might not be needed with the thermostat (assuming it's fully mechanical).
• The thermostat might have a spot for the sensor, making it a true plug-and-play option for replacing the CCV.

This could be a great solution for people whose CCVs go bad because thermostats are generally simpler and more reliable.

However, I also have some concerns that the ECU might throw a check engine light if it can't communicate with the CCV (which wouldn't be there anymore). This might be solvable, but I'm not sure.
I'm hoping someone with a 2024 CX-5 or a mechanic might be able to shed some light on this and / or send a picture of what their thermostat housing looks like underneath the battery tray and PCM. It would be fantastic if the thermostat truly is a replacement option for the CCV.

In the meantime, I've attached a video that shows the inside of a CCV for reference: https://youtu.be/5q_NTWg-uSI?si=GNHHPFNkuwEabx4q

Thanks!

 

[Conrad 16.5]

So, based on the fact that you think that the thermostat housing on the 24 looks the same as the CCV on your 21, you believe that they are interchangeable? Even though you haven't seen the actual parts side by side?

While I'll admit that I've never seen a CX thermostat or the CCV from one, I've seen these parts plenty of times from other cars and I can tell you that the parts are VERY different and couldn't possibly be interchangeable.

 

[yrwei52]

I recently purchased a 2021 Mazda CX-5 and I've been reading about common issues with the CCV (crankcase ventilation valve). Apparently, the CCV can go bad and needs replacing sometimes, which can be a hassle.

Can a 2024 CX-5 thermostat be used to replace a 2021 CCV? If the CCV you mentioned is “crankcase ventilation valve” like you said, no it definitely can’t! They’re 2 totally different animals!

But if the CCV means “coolant control valve” which is used only on the 2.5L NA with cylinder deactivation, you need an entire CCV which contains a traditional thermostat inside. I don’t believe you can replace only the thermostat in the coolant control valve, p/n: PYFD-15-16ZA, which is quite expensive at $454.36 MSRP!

If you have found a 2024 CX-5 traditional thermostat from some Mazda OEM parts website, remember there’re plenty of 2024 CX-5’s come with a 2.5L NA w/o CD, which uses traditional thermostat of course that’s entirely different engine.

TSB No.: 01-005/23 Check Engine Light On with DTC P0126:00

CX-5 heater core issues discussed on another Mazda forum