Class action settlement for defective exhaust valve seals/oil burning 2021 CX-5 CX-9 2.5T etc

There are two different issues at play here. The one which was settled with the class action is for the valve stem seals (2.5T motors only) which caused loss of oil. There is another issue, cracked heads due to a casting defect, which is NOT covered under the class action (this occurs in both 2.5 NA and 2.5T motors). That issue is what leads to loss of coolant and engine failure. As far as I know, Mazda has never released a warranty extension for the cracked head issue- they just fix some under good will on a per case basis.
Due to the different locations:

Cylinder head crack on NA engines causes an oil leak.

Cylinder head crack on turbo engines causes a coolant leak.

You're right that the valve stem seals on certain turbo engines caused oil consumption, but not a leak.
 
Doesn't the head crack cause both in both engines? Also, no class action settlement on the cracked heads for either motor.
 
The extension is only for the valve seals. It doesn't cover a cracked head beyond 60k.
Wrong. The extended warranty for turbos is 10yrs/120,000 miles for coolant leaks at the cylinder head around the exhaust manifold (aka Cracked Cylinder head).
 
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So that we don't confuse the issues with each other, and to keep the thread on track..

On 2.5 NA engines with cylinder deactivation (2018-current), cylinder heads can crack and cause an oil leak. The crack is usually located in a specific area above the exhaust manifold. A TSB has been issued for Mazda techs to reference.

On 2016-2020 Mazdas with 2.5T engines, cylinder heads can crack at the exhaust manifold, typically causing an external coolant leak. Mazda has issued a warranty extension and customer service program to extend powertrain warranty for this issue to 10 years or 120k miles, and customers who have paid out of pocket for related repairs can be reimbursed by Mazda.

2021 Mazdas with the 2.5T engine had a short production run of engines with defective valve stem seals. This is the topic of the thread. To repeat what was discussed in the first post, powertrain warranty for this issue is extended to 7 years or 84k miles for affected VIN numbers. Owners are eligible to claim reimbursement for oil changes performed and oil used to refill the low oil to bring it back to normal operating levels.
 
Wrong. The extended warranty for turbos is 10yrs/120,000 miles for coolant leaks at the cylinder head around the exhaust manifold (aka Cracked Cylinder head).
I see in the post above, the 10yr/120k estension is only for 16-20 cars with the 2.5T. 21 and up are not covered. Hopefully this means the 21 and up are not going to develop the issue.
 
I see in the post above, the 10yr/120k estension is only for 16-20 cars with the 2.5T. 21 and up are not covered. Hopefully this means the 21 and up are not going to develop the issue.
So they say but I've seen some posts on this forum of owners with post 2020 CX-5's having cracked cylinder heads. Possibly heads from 2020 runs were used on 2021's. They will probably broaden the extension if enough owners experience the problem and complain.
 
I'm considering a 2021 CX-9 but this valve stem issue is scaring me off. I know in the US there was a class action lawsuit, does that apply to us in Canada? Also, if the vehicle is still under power-train warranty, would they cover the fix if I can prove I have the issue?
 
I'm considering a 2021 CX-9 but this valve stem issue is scaring me off. I know in the US there was a class action lawsuit, does that apply to us in Canada? Also, if the vehicle is still under power-train warranty, would they cover the fix if I can prove I have the issue?

Look at the VIN number of the vehicle and compare it with the VIN range in the TSB. Not all 2021 had the issue. If your 2021 is outside of the VIN range it should be fine.

Unrelated but you should also know that in Canada there is a 2021.5 model. The 2021s have the old infotainment system and the 2021.5 have the new one with the new screen.
 
Look at the VIN number of the vehicle and compare it with the VIN range in the TSB. Not all 2021 had the issue. If your 2021 is outside of the VIN range it should be fine.

Unrelated but you should also know that in Canada there is a 2021.5 model. The 2021s have the old infotainment system and the 2021.5 have the new one with the new screen.
I have checked and have confirmed that the VIN of the CX-9 I'm looking at is within that range. Does that mean that for sure this vehicle has the issue or just that it *might*?.

Also, just to be clear @cz5gt, that "yes" means: Yes Canadians are covered by this class action or, Yes it's covered under the warranty period, or both? Thanks.
 
There is a 2022 CX-9 GT that I was seriously considering. But the CarFax indicates that they had a $30,000 insurance claim in 2023. That seems like a whole other can of worms to me. I have nothing but bad options it seems.

Wow, I wonder what happened with that 2022. Must have been a pretty bad wreck.

Regarding the class action settlement, if you click on the FAQ link in the first post of this thread, there's a short section regarding eligibility. From what I could tell, only US owners are eligible, but if you want to be sure, you can email the claim administrator at info@MazdaValveStemSealSettlement.com, or call them at 1-877-231-0642.

I suppose it wouldn't hurt to also contact Mazda Canada and Mazda USA to see what their take on it would be, since the VIN does fall within the affected range specified in the settlement.
 
You don’t need to signup to the class action lawsuit anymore, because mazda issued the extended warranty. Typically these warranties extend to Canada as well, but not always. Remember Canada has a different powertrain warranty than the U.S. (unlimited km vs 60,000 miles).

The only way to know would be to ask the dealer directly or Mazda Canada. I would bring them this letter and this tsb and ask if there is a similar warranty extension in Canada. https://static.nhtsa.gov/odi/tsbs/2024/MC-11003697-0001.pdf

If it isn’t i would:
- make sure that the 2021 still has a fair amount of powertrain warranty left. The symptoms are easy to spot (oil consumption) but you will need to drive it for a while to observe the oil consumption trend and for the dealer to diagnose it, because they will likely want to fill it themselves first and then measure the oil level later, and that takes time and mileage added to do.
-check with another mazda dealer if the work has already been done. I often call my local dealer to ask for the maintenance history of used Mazda that other dealers are selling. They are usually pretty open about providing the info and it is often ( but not always) recorded in the mazda central database. If the work has already been done then that should be ok. If not then it is not guaranteed to be an issue, but it is a roll of the dice. You know enough of these had problems for a class action lawsuit to be successful.

My recommendation would be that if you can afford to wait, wait for a better vehicle to show up on the market, or extend your search radius. To get a good deal on the used market you have to be patient and to be willing to travel to go get the deal. The used car market in my city isn’t great (almost always overpriced), for my last three used cars i have travelled to Montreal and Toronto to get them. Way more availability and better prices. Obviously it depends how close you are to bigger market, but if you get the option to drive a few hours to get a better car it is worth it.

For the 2022, i would only consider it if it was massively discounted. Keep in mind that a car with that history will also be really hard for you to resell, and you need to trust that all the repairs have been well done. There can be great deals to be had on rebuilt vehicles, but they need to be deals. If it is close to the 2021 in price, i don’t think i would go for it.

Also can you get the 2021 to be a mazda certified vehicles ? I believe that would extend the entire powertrain warranty to 7 years. I would be comfortable with a 2021 CPO with that kind of warranty.
 
Thanks for the advice guys, very useful.

No, the 2022 is not a CPO as it's not at a Mazda dealership selling it. However, a local Mazda dealership has a 2019 GT CPO that I'm considering. That leaves me prone to the cracked block/head issue, but they're asking less for it.
 
I have checked and have confirmed that the VIN of the CX-9 I'm looking at is within that range. Does that mean that for sure this vehicle has the issue or just that it *might*?.

Also, just to be clear @cz5gt, that "yes" means: Yes Canadians are covered by this class action or, Yes it's covered under the warranty period, or both? Thanks.
My 2021 Signature is within the range. I haven't had the problem yet at 39,000 miles. I change the oil at 5,000 mile intervals.
 
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