[Miss-X2m1]

2024 turbo base with 10700 miles.
I was driving down a 2 lane rural road and attempted to overtake the semi going 45 in a 55. I accelerated hard and was able to pass the semi. A couple of seconds later, thick white smoke engulfed the engine bay and I lost all engine power. The vehicle was towed to the nearest dealership 52 miles away. Mazda reviewed my driving behavior data transmitted from my car via mazda connect and determined that the vehicle failure was my fault. Thus no warranty. "Abnormal pedal behavior right before failure resulted in a engine overspec condition." Oil was changed once at 5266 miles and another at 9819 miles in anticpation for this road trip. How does an engine experience overspec condition by accelerating hard? The highest techrometer reading was 5500 rpm. Dealership foreman says they will try to convince mazda to cover this under warranty because he thinks that this is not right.

If you are located in the USA, file a complaint with the National Highway Transportation Safety Administration.

Report a Safety Problem | NHTSA

A new engine basically blowing up and falling apart is a safety issue. I would totally file a complaint.

 

[rvallieres]

CX-50 Premium Plus 600 miles. Love it. My last car was a Subaru Forester. First problem (under warranty): excessive oil consumption. It took me a year of "proving" that I had "sufficient" oil consumption to get the regional office to move. I got a new short block and it fixed the problem but not after considerable hassle (AND they knew it was an issue!). Second problem (under warranty): failed transmission solenoid ($2,500). I had to go all the way to corporate and enlist a "customer advocate" to get them to cover the issue. They said they'd cover $2,000 of the $2,500. I took it. The point is that all these manufacturers try their best to get out of covering a problem that's under warranty. Go to corporate and tell them about this forum, social media, etc and get a "customer advocate". Good luck.

 

[BSM-CX50]

I received an update from the dealership. Mazda had them take apart the engine. They discovered that the engine block was warped and the coolant flowed into the combustion chamber causing the failure. They also suspect that the thermostat was defective as it was only open 80% of the way when it should be opened 100% due to the air temps being near 100F. They also suspect that the heat sensor was defective as they saw no recorded air temp warnings/safety warnings before failure and the ECU records show normal operating temperatures right before failure.
Mazda says that they will cover this engine under warranty. They will NOT be covering the engine mounts/radiator hose/radiator that were damaged due the abrupt shaking of the engine when it failed because this is considered a "Wear and tear item". I am extremely disappointed.

Thats BS! The other items would not have been damaged had it not been for the engine. I'd keep escalating that issue and if not resolved I'd take them to small claims court!

 

[Rarotunn]

There are 2 things I've been hearing on the various forums and groups. OP, you may have cross posted this too, IDK.

1. Advisors are telling customers that they must first determine if (any) said repair is a warranty repair. This is inherently wrong. If the car is under warranty then the repair is under warranty unless/until the technician/shop finds proof of neglect or failure to maintain. I don't know why advisors are being trained to try and get "diagnosis time" pre-signed by customers with cars under warranty. if it's a vehicle under warranty the warranty covers the diagnosis time, again, until its determined that neglect or failure to maintain is present. As a former Advisor this one really aggravates me to no end.

2. Mazda, by way of the dealers, seems to like to attempt to wiggle out of warranty repairs at any opportunity. This is not how a manufacturer, especially one who is trying to build market share, behaves. It's just wrong. A customer with a vehicle under warranty should not have to fight to get something covered. As above, the burden of proof that the vehicle was abused, neglected or not maintained is on the manufacturer. Mazda seems to go with the presumed guilty scenario first.

This 100%. Mazda says you are guilty until proven innocent. It’s not a good way to be with your customer base. I was really taken back as of the 15 cars I’ve owned I’ve never experienced something like this

 

[S3ntoacx50]

The engine vibrated so much during failure that it caused other parts to fail. Period.

Id give them 5 business days to figure it out. And if they still try charging for a radiator and hoses ect id go ballistic on social media.

 

[Lampshade221]

Sounds like a crappy dealership service department. I take my 2023 for oil changes and they give me a loaner to go sit down and eat breakfast. lol

 

[kernel.panic.911]

I received an update from the dealership. Mazda had them take apart the engine. They discovered that the engine block was warped and the coolant flowed into the combustion chamber causing the failure. They also suspect that the thermostat was defective as it was only open 80% of the way when it should be opened 100% due to the air temps being near 100F. They also suspect that the heat sensor was defective as they saw no recorded air temp warnings/safety warnings before failure and the ECU records show normal operating temperatures right before failure.
Mazda says that they will cover this engine under warranty. They will NOT be covering the engine mounts/radiator hose/radiator that were damaged due the abrupt shaking of the engine when it failed because this is considered a "Wear and tear item". I am extremely disappointed.

Well, I will never be purchasing or leasing a Mazda, EVER. Fortunate that I came across this post. Mazda makes Hyundai warranties look good. That is hard to do. I would taking them to court of the "wear and tear" items. Mazda is a national participant in BBB AUTO LINE’s vehicle warranty and lemon law dispute resolution program. Do a search for bbbprograms dot org . I can't post a link here yet.

 

[starradomski]

Unfortunately... everyone does this. I have friends that told me the same things from Honda, Toyota, Chevy, Ford, and the two worst offenders Kia/Hyundai. So its just normal practice for most dealers to try to deny as much as possible.

 

[vrojcov]

CX-50 Premium Plus 600 miles. Love it. My last car was a Subaru Forester. First problem (under warranty): excessive oil consumption. It took me a year of "proving" that I had "sufficient" oil consumption to get the regional office to move. I got a new short block and it fixed the problem but not after considerable hassle (AND they knew it was an issue!). Second problem (under warranty): failed transmission solenoid ($2,500). I had to go all the way to corporate and enlist a "customer advocate" to get them to cover the issue. They said they'd cover $2,000 of the $2,500. I took it. The point is that all these manufacturers try their best to get out of covering a problem that's under warranty. Go to corporate and tell them about this forum, social media, etc and get a "customer advocate". Good luck.

I hear you. $500 is not worst your time to continue negotiations. Funny enough $500 is less than their corp attorney 2 hr rate. That’s a really a very low price tag on the company reputation. Specifically when Mazda trying to position itself as near premium brand.

 

[kbustaar]

Mazda Customer Experience Center agreed with the Mazda Tech case judgement. Radiators/hoses/mounts are considered wear and tear items and are not included in the power train warranty. The agent told me to think about it like this. Radiators are wear and tear because they are not protected from the elements so dead bugs, rocks can bend the fins reducing the functionality. My next car won't be a Mazda. I know other car manufacturers do this too but their explanation doesn't make sense to me of why these aren't covered.

Stay away from Chrysler Jeep Ram (whatever they are calling themselves these days) because they are kust as bad or worse.