Sky-Active turbo engine block replacement TSB
By now many of you know there is a major TSB that points to total engine replacement for Sky-Active Turbo engines from 2016 -2019, a $10,000 repair. Many have shared how their engine ended up failing exactly as the TSB says, coolant leaks, blown head gasket, and upon inspection cracked cylinder blocks. I have an engine noted in the TSB but fortunately had bought a great extended warranty that covers up to 100,000 miles and have 66,000 miles now. My biggest worry is the engine won’t fail while I’m in warranty.
My question is, for those of you who have had the engine failure, at what mileage did it happen and if less than 100,000 miles and especially less than 60,000 miles, would you say your driving habit was more “lead foot” than easy cruiser? Was it during summer heat or winter cold? I actually want my engine to fail so it gets replaced under warranty and if it makes a difference to drive more aggressively in hot or cold weather, it would be good to know. Thanks in advance for any insight, and for those of you not so fortunate to have at least a warranty, I may be in your situation if my vehicle exceeds 100,000 without engine failure (I’ve seen some last 190,000 miles!)
My question is, for those of you who have had the engine failure, at what mileage did it happen and if less than 100,000 miles and especially less than 60,000 miles, would you say your driving habit was more “lead foot” than easy cruiser? Was it during summer heat or winter cold? I actually want my engine to fail so it gets replaced under warranty and if it makes a difference to drive more aggressively in hot or cold weather, it would be good to know. Thanks in advance for any insight, and for those of you not so fortunate to have at least a warranty, I may be in your situation if my vehicle exceeds 100,000 without engine failure (I’ve seen some last 190,000 miles!)
I've watched this issue for a long time. While similar failure is possible, I'd also take into consideration the relative proportion of reported failures on the internet vs vehicles on the road. Claims on the internet are rarely verified with repair orders. Even if taking all claims as valid and honest, the proportion remains miniscule. A TSB does not mean all vehicles will have that issue. It doesn't even indicate many or most will develop that issue. Sure, there is a risk it could happen just as there is a risk of something failing in any car. I wouldn't go trying to induce some failure to get a new engine prior to warranty expiration.
I've watched this issue for a long time. While similar failure is possible, I'd also take into consideration the relative proportion of reported failures on the internet vs vehicles on the road. Claims on the internet are rarely verified with repair orders. Even if taking all claims as valid and honest, the proportion remains miniscule. A TSB does not mean all vehicles will have that issue. It doesn't even indicate many or most will develop that issue. Sure, there is a risk it could happen just as there is a risk of something failing in any car. I wouldn't go trying to induce some failure to get a new engine prior to warranty expiration.
This is one of the best responses I have seen on the subject and question asked that also covers similar questions from member on this forum as well other Mazda forums!!!
On the mention and subject of TSB's
I also suggest that if people are going to elevated themselves to a MAZDA trained automotive technician status you learn how to read and understand a TSB and not pick and choose words and phrases that fit the narrative you are trying to support on forums. Not say all do this but most do. Look at the disclaimer that is on each page of a TSB before you start defending that they are made for the public to use.
As I and others have said many times, it doesn't matter what is printed on each page of a TSB. It is not possible to block the broadcasting of a TSB to the public no matter what Mazda (or forum members) say about it. That being said, it really does appear to be a luck of the draw situation. I have a friend with a 2018 CX-9- no issues with his engine, as yet. We have not experienced the oil loss issue in our '21 turbo (we are at 25k), although it fits the TSB's VIN numbers. You may get lucky, you may not. No way somebody here is going to be able to tell you what will happen with your engine - unless they possess a crystal ball.
As I and others have said many times, it doesn't matter what is printed on each page of a TSB. It is not possible to block the broadcasting of a TSB to the public no matter what Mazda (or forum members) say about it. That being said, it really does appear to be a luck of the draw situation. I have a friend with a 2018 CX-9- no issues with his engine, as yet. We have not experienced the oil loss issue in our '21 turbo (we are at 25k), although it fits the TSB's VIN numbers. You may get lucky, you may not. No way somebody here is going to be able to tell you what will happen with your engine - unless they possess a crystal ball.
You may also look on that site and see that even they use the same copyright protection information on some of their area's.
It's not that people can't read them it is however people that don't read and understand them or only take the information they want from them.
We have read this time and again on this and other Mazda forums. i.e. vale stem seals
I hope you NEVER write something and publish it and pay all the money to get a copyright in the USA you are in for a BIG surprise when your work is copied and posted on various internet sites without out your permission. What you just p[osted makes seems to be a problem with many and that they think laws don't apply to them?
If you are one that brings a TSB with you to a dealership most times unless you start off and preference that you found on the NTSB (not an enthusiast forum) in which many times, go as you would hope if you were trying to get them to get some service or warranty work done. They may NEVER say anything to you about it but trust me it all to annoying to them every day when a customer that apparently in most cases is unqualified thinks the TSB applies to their vehicle. NO dealership is required to do any service work even under a warranty as they are independent business and YUP>>>>> they can refuse to do any service ! This is why you want to start the conversation with asking for help and explanation and get a repour with them first thing. Get them to want to help and support you with a concern.
Last edited by Callisto; Mar 18, 2024 at 12:00 PM.
Nah, it isn't the fact it's copyrighted, it's info about peoples personal property. You can't really copyright this kind of thing. It's not an issue for owners to have access to their own cars TSB's. They SHOULD have access at all times IMHO. I have gone in many times with TSBs on many cars of different makes and had zero issues telling the dealership. Most of the time they were pleased to have the info and said it helped them to solve the issue more quickly. I did this exact thing to get the cold weather turbo software update done on my 21 CX5(I presented the TSB number to them).
All mfg copyright their bulletins and they are enforceable in locations outside the USA depending on that jurisdiction. In the USA, their copyright is superceded by CFR 49 part 579 and resulting NHTSA regulations. Manufacturers that assemble or sell a vehicle in a US State or territory must provide all manufacturer communications to the NHTSA within 5 business days of the end of the month in which it was issued. Manufacturers must submit all notices, bulletins, and other communications including warranty and policy extensions and product improvement communication sent to dealers, distributors, owners, purchasers, lessors, or lessees regarding any defect, failure or malfunction beyond normal deterioration in use, failure of performance, flaw or other unintended deviation from design specifications whether it is safety-related or not. Those communications may be used by owners to "inform, repair, reproduce, reference, or share."
The problem as I said earlier is that a basic owner or even an owner that perceives themselves as advanced isn't necessary the same is a trained manufacturer technician or certified technician. A bulletin may be issued to help a technician diagnose outside what normal service instructions dictate. It could be related to limited numbers parts sourced from a specific batch used for weeks in assembly not an entire production year. So many owners think "there's a bulletin issued so my car must have this problem!!!"
The problem as I said earlier is that a basic owner or even an owner that perceives themselves as advanced isn't necessary the same is a trained manufacturer technician or certified technician. A bulletin may be issued to help a technician diagnose outside what normal service instructions dictate. It could be related to limited numbers parts sourced from a specific batch used for weeks in assembly not an entire production year. So many owners think "there's a bulletin issued so my car must have this problem!!!"
Nice response ondersman80 
The NTSB regulation you are referring to is actually a resent one having to do with TSB. The copy right actually can be enforced (if that is the best word? ) and there are cases from people that post copyright material none approved media have been sued. I personally have several copies write material and have paid a considerable amount to get them. So unless other have gone through the process please keep you band wagon BS and less than all the information concerning a copy write material to yourself or go do the complete research and see what the protection is and the coast and all the information required to get one is before hopping on yourself righteous band wagon of armchair wisdom.
I have also been on the receiving end of a cease and deist letter of legal intent for the use of an auto manufactures (one of the most predominately known in the civilized world) name ( I used the capitol letters as they did and that was my bad) in a small line of engineered parts I offered.
Chik!
I am glad that at least one member realizes ::: and I will use his quote.."The problem as I said earlier is that a basic owner or even an owner that perceives themselves as advanced isn't necessary the same is a trained manufacturer technician or certified technician. A bulletin may be issued to help a technician diagnose outside what normal service instructions dictate. It could be related to limited numbers of parts sourced from a specific batch used for weeks in assembly not an entire production year. So many owners think "there's a bulletin issued so my car must have this problem!!!""

All mfg copyright their bulletins and they are enforceable in locations outside the USA depending on that jurisdiction. In the USA, their copyright is superceded by CFR 49 part 579 and resulting NHTSA regulations. Manufacturers that assemble or sell a vehicle in a US State or territory must provide all manufacturer communications to the NHTSA within 5 business days of the end of the month in which it was issued. Manufacturers must submit all notices, bulletins, and other communications including warranty and policy extensions and product improvement communication sent to dealers, distributors, owners, purchasers, lessors, or lessees regarding any defect, failure or malfunction beyond normal deterioration in use, failure of performance, flaw or other unintended deviation from design specifications whether it is safety-related or not. Those communications may be used by owners to "inform, repair, reproduce, reference, or share."
The problem as I said earlier is that a basic owner or even an owner that perceives themselves as advanced isn't necessary the same is a trained manufacturer technician or certified technician. A bulletin may be issued to help a technician diagnose outside what normal service instructions dictate. It could be related to limited numbers of parts sourced from a specific batch used for weeks in assembly not an entire production year. So many owners think "there's a bulletin issued so my car must have this problem!!!"
The problem as I said earlier is that a basic owner or even an owner that perceives themselves as advanced isn't necessary the same is a trained manufacturer technician or certified technician. A bulletin may be issued to help a technician diagnose outside what normal service instructions dictate. It could be related to limited numbers of parts sourced from a specific batch used for weeks in assembly not an entire production year. So many owners think "there's a bulletin issued so my car must have this problem!!!"
I have also been on the receiving end of a cease and deist letter of legal intent for the use of an auto manufactures (one of the most predominately known in the civilized world) name ( I used the capitol letters as they did and that was my bad) in a small line of engineered parts I offered.
Chik!
I am glad that at least one member realizes ::: and I will use his quote.."The problem as I said earlier is that a basic owner or even an owner that perceives themselves as advanced isn't necessary the same is a trained manufacturer technician or certified technician. A bulletin may be issued to help a technician diagnose outside what normal service instructions dictate. It could be related to limited numbers of parts sourced from a specific batch used for weeks in assembly not an entire production year. So many owners think "there's a bulletin issued so my car must have this problem!!!""
Never said one should attempt to do the TSB themselves. BUT, it can be really helpful to be able to read a TSB as I have been told - erroneously - many times over the years that no such issues exist with my car, only to find a TSB about the exact issue I was having and the dealer told me was "normal". Being armed with the TSB number can be VERY helpful in my personal experience.


