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A New Subaru and Toyota Engine Failure Lawsuit Includes All BRZ, FR-S, 86, and GR86 Boxer Engines

A new class action lawsuit alleges Subaru's Boxer engines in the BRZ, Scion FR-S, Toyota 86, and GR86 are defective in the two automaker's sports cars. Here are the latest details.

Subaru's Boxer engine is under fire. 

Subaru's 2.0-liter and 2.4-liter Boxer engines in the BRZ, Scion FR-S, Toyota 86, and Toyota GR86 are allegedly defective in a new class action lawsuit

The Subaru and Toyota Boxer, engine failure lawsuit, is massive and includes all Subaru and Toyota vehicles equipped with 2.0-liter and 2.4-liter four-cylinder Boxer engines. T

Subaru, Scion, and Toyota sport coupes that are included in the lawsuit. 

  • 2013-2016 Scion FR-S
  • 2013-2023 Subaru BRZ
  • 2017-2023 Toyota 86/GR86

The Subaru and Toyota Boxer, engine failure lawsuit, includes all first and second-generation Subaru BRZ, Scion FR-S, and Toyota 86/GR86 models.  

It's important to note that the Boxer engine is primarily a Subaru design in the Subaru/Toyota BRZ/GR86 joint venture. This joint venture, formed in 2012, aimed to combine Subaru's expertise in boxer engines with Toyota's knowledge in hybrid technology. However, it incorporates some Toyota parts, most notably the D-4S direct injection system, a Toyota technology used on the four-cylinder engine, allowing for more efficient fuel delivery.

CarComplaints says, "Arkansas plaintiff Laura Young filed the Boxer engine failure lawsuit for more than $5 million for her 2019 Toyota GR86, which she purchased used in October 2021."

"In April 2023, the plaintiff was driving her Toyota when it suddenly lost power, and the engine failed when the GR86 had about 64,000 on the odometer. The powertrain warranty coverage is for 60 months or 60,000 miles, whichever occurs first."

The plaintiff did not contact a Toyota dealership, but she says she contacted an independent auto repair shop after her Toyota GR86 sport coupe was towed home.

"Upon a complete professional teardown of the engine, it was determined that the engine failure was due to oil starvation, loss of the oil film, and excessive wear. Ms. Young's vehicle is still disabled, and Defendants have not replaced her defective engine with a non-defective one," according to the Toyota Subaru boxer engine lawsuit.

What is the problem with the sports car's Boxer engines?

The report says the Subaru Boxer engines allegedly suffer from low oil pressure and a loss of oil film, which damages and destroys the boxer engines due to a lack of engine oil.

The lawsuit alleges that drivers and others are in danger when the Boxer engines fail while driving, and in the worst case, the plaintiff claims the Boxer engines can catch fire.

"Defendants admit they had known about the Engine Defect before the first Class Vehicle was sold yet chose to conceal it from purchasers. Defendants have never disclosed the Engine Defect to Plaintiff or the Class members," the Boxer engine failure lawsuit says. 

The report says that the plaintiff, Laura Young, complains that the Toyota and Subaru vehicles have never been recalled to repair the boxer engines, and the automakers need to extend the warranties. Customers also allegedly have yet to be offered replacements or suitable repairs, and the class action further alleges customers haven't been reimbursed.

The lawsuit alleges Subaru and Toyota used room temperature vulcanizing (RTV) silicone instead of traditional gaskets.

The heat from the Boxer engine allegedly hardens the silicone, which causes it to break apart and find its way into the crankcase. Young alleges that Toyota and Subaru "applied RTV excessively and clumsily during manufacturing."

The fractured hardened silicone allegedly gets into oil and coolant passages, damaging and destroying the Boxer engines.

A lawsuit was filed in 2019 for Boxer engine problems. 

I reported in March 2019 that some Subaru BRZ and FR-S 2.0-liter engines were dying after the recall fix had been done at some Toyota dealers. The report said technicians were applying too much sealant, causing some BRZ and FR-S engines to fail.

A class action lawsuit was filed in 2019 by a 2013 Scion FR-S owner who claimed he took his sports coupe to a Toyota dealer for the recall and had repairs done. One week later, his engine developed a "hard knocking," so he returned to the dealer and was told there were metal shavings in the oil, but the dealer refused to fix it.

The Subaru and Toyota Boxer engine failure lawsuit was filed in the U.S. District Court for the District of New Jersey on July 1, 2024. This could have significant implications for Subaru and Toyota, as they are accused of concealing these defects. The lawsuit, if successful, could lead to substantial financial penalties and damage to their reputations. I will bring further updates when they become available. 

Have you experienced any engine issues in a Subaru BRZ, Scion FR-S, Toyota 86, or Toyota GR86? If so, click the red Add New Comment link below and let us know.

I am Denis Flierl, a Senior Torque News Reporter since 2012. My 30+ year tenure in the automotive industry, initially in a consulting role with every major car brand and later as a freelance journalist test-driving new vehicles, has equipped me with a wealth of knowledge. I specialize in reporting the latest automotive news and providing expert analysis on Subaru, which you'll find here, ensuring that you, as a reader, are always well-informed and up-to-date. Follow me on my X SubaruReportAll Subaru, WRXSTI, @DenisFlierlFacebook, and Instagram.

Photo credit: Denis Flierl via Subaru

Comments

Mike (not verified)    November 13, 2024 - 9:15AM

I have a 2013 frs that had the motor fail at around 65k miles and it was replaced the first time. The replacement motor failed around 130k miles and Toyota decided that it was no longer covered by the life time warranty and it now has been sitting dead for 4 years

Josh Old (not verified)    November 13, 2024 - 9:16AM

I had Toyota check for RTV and they said if they found any they wouldn't charge me but if they didn't find any I would have to pay. My car had 20k miles on it. They didn't end up finding any. I didn't trust that they knew where to find it so I had an independent shop check and lo and behold there was RTV built up in the oil pickup.

frederic st-pierre (not verified)    November 13, 2024 - 9:44AM

2engine inside a of a month. both we're order waranty but still sad to loose your car for over 2 weeks each time your engine fail on you. first engine no one know what happened, second one was due to a failure in a rocker arm. scion frs 2015

Christine N. (not verified)    November 13, 2024 - 9:53AM

I have a 2023 Toyota GR86. What is the best thing to do at this time to try to avoid this issue? Should I be speaking to my Toyota dealership about this? Had I known, I would never have purchased the vehicle. As it is, my engine leaked oil all over after my first oil change by the dealership, so I do not have a lot of confidence in them.

Conrad Gauthier (not verified)    November 13, 2024 - 12:32PM

My wife bought a 2022 Ascent and it had to go to the dealership to get resealed because it was leaking before it was time for the first oil change. That's all I need is cheap sealant going through the motor and turbo. What are your thoughts on this?

Lane johnson (not verified)    November 13, 2024 - 2:12PM

My 2013 engine started knocking really bad while doing 60 mph on the highway. Took it too a shop and they said motor was ruined.

Marc Moore (not verified)    November 13, 2024 - 4:31PM

My 2017 BRZ STI blew a motor for this exact reason at 74,000 kms . I have pictures to prove excessive application of silicone which covered 50 % of port that fed oil to the crank. Purely the fault of Subaru as I babbied this car. This was an absolute nightmare and I had to swap my motor to a 2018 2.0.

Ben (not verified)    November 13, 2024 - 6:39PM

Complains about boxer engine doesn't realise its been a boxer flaw since design day I've gone through 3 engines on my car due to similitude issues and the cars aren't even in the same year range or milage range but it should be pointed out that this is an issue with any boxer due to designs

Bill (not verified)    November 13, 2024 - 9:41PM

I have a 2013 BRZ. Engine failed at 64k miles.

Because I was out of warranty, I replaced the motor myself.

When I was picking up a new 2016 STI, I mentioned it to the dealer. They told me, "You should have come to us, as we may have been able to cover it"

Ugh!

Kim Campbell (not verified)    December 6, 2024 - 10:55AM

In reply to by Bill (not verified)

Does anyone know if there is a lawsuit in Canada? I could not get car dealership nor local subaru dealer nor Subaru Canada to cover my car. I think a car purchased should last longer than a month.

Blake Bolton (not verified)    November 14, 2024 - 2:45AM

I had a 2013 Scion FRS and had the same issue with engine failure a few years ago. Oil starvation destroyed it with the dealership declining any warranty so paid out of pocket for a new motor from the dealer. There should definitely be a lawsuit for this and the victims of this should be compensated….

Mosses Gas a (not verified)    November 16, 2024 - 12:21AM

Had bought a 2019 toyota gt86 with 26k miles on Feb. Of 2024 and 2 months later had a rod knock sound coming from the engine. Took it to a Toyota dealership and they found metal particles in the oil. Thought it was going to be covered under the powertrain warranty since it was still within the time frame but was declined and had to pay 7k to get the vehicle repaired.

Max (not verified)    November 18, 2024 - 12:19PM

It might be a much larger issue. Search “cam carrier oil leak” or “camshaft carrier oil leak”. Possibly all FB engines might be affected. Maybe all models. The silicone RTV seems to be failing aa you describe in this article. There is a 44(?) page TSB describing how to determine source of engine oil leaks for Subaru techs. A $3300+ repair requiring engine removal and partial disassembly for the cam carrier leaks.

Arthur FRITTELLI (not verified)    November 22, 2024 - 9:53PM

Yes I have a first generation Scion FR-S 2014 and have had to have the engine rebuilt at approximately 70,000 MI I knew these cars had a problem I could never prove it I feel like Toyota should give me a new engine for all we went through even though I kept the car and fixed it

Kim Campbell (not verified)    December 6, 2024 - 10:50AM

Purchased a 2013 BRZ from used car dealer with around 64,000 km on it. My 17 year old son saved for two years for it. Had it less than 2 weeks. Engine light on. Took to Subaru dealer to fix. Drive home and check engine light on again. Three days later engine blew up. Used car dealer, Subaru dealer nor Subaru Canada will come good for it. Very angry and upset for my son.

Wealman (not verified)    December 8, 2024 - 8:52AM

I am a happy owner of a 2023 BRZ. Anyone who did their research on this car knows what it is, and what it is not. You need to have realistic expectations. This are great videos that use accepted methods of scientific experimentation to show which of these rumors are true, and who they may affect as a result. For me, this car is as much fun as a 718, at half the price and a fraction of the maintenance. In reality, this motor has close to 250 hp, and there is a… Art in maintaining a boxer motor of that caliber. I noticed how close people were to their residence when the car crapped out. You must let these engines come to temperature before you pound on them. There is a reason Subaru has a “cold” light. That said, there are those with engines that took a shit, But if you do the math, it’s less than one percent.

Anyway, what the hell do I know, But for the money I paid I got an amazing sports car that’s dailyable that does not exist anywhere else and will not exist for the rest of my life, Unless I pay $100,000.

And a quick message to all those people that criticize, if you want these cars, you have to put your money where your mouth is. If we don’t buy these cars when the dealers make them… They stop making them. And if you buy a used sports car with a boxer engine, Three past owners and a 30 day warranty on Carvana, Be prepared for a fight.

Mickey Romero (not verified)    December 8, 2024 - 12:32PM

Happened to my 2013 FRS after getting the recall done for the springs. I paid nearly $10000 to get a brand new engine installed and now the car just sits in my garage until I somehow get reimbursed by toyota or subaru.

Jose Rodriguez (not verified)    December 10, 2024 - 10:56PM

I'm gonna be quite honest about this but I'm on my 3rd engine failure with my 2015 brz and on the 3rd time it failed with less then 1000 miles on the rebuild i had done and it was all because of the engine oil problems my car is currently parked inside my garage with a knocking engine which sucks because I love my brz

Jose Rodriguez (not verified)    December 10, 2024 - 10:57PM

I'm gonna be quite honest about this but I'm on my 3rd engine failure with my 2015 brz and on the 3rd time it failed with less then 1000 miles on the rebuild i had done and it was all because of the engine oil problems my car is currently parked inside my garage with a knocking engine which sucks because I love my brz

Matt (not verified)    December 11, 2024 - 6:16PM

I have a 2014 BRZ that has had the same thing happen to it with around 52K miles. I didn't drive the car hard or anything and all of a sudden I started hearing what sounded like knocking. I had a medical situation at that time, which tanked most of my savings and left me unable to fix it. It's been sitting for a little over a year, while I try to save up enough to fix it.

Joshua (not verified)    December 20, 2024 - 1:37PM

My 2013 FRS suddenly died at around 60K, Hannah Toyota in Longview WA diagnosed with spun bearing (not sure rod or main). I had to fork out $ for new short block + additional parts& labor at dealership retail prices just to receive any warranty on the job performed. The car was out of factory warranty by date not mileage as it wasn't my primary vehicle, also had oil changed every 3K prior to failure.

Alli Beth Ess (not verified)    January 29, 2025 - 1:48PM

Our 2015 Subaru is experiencing the same problem with the gasket failure. How do we get in on the class action suit?

tommy s oconnor (not verified)    February 4, 2025 - 3:46PM

I HAD 2014 FRS .. 1ST ENG WENT AY 95000 MILES DO TO #3 ROD GOING OUT .. THEN THE 2ND ENG WENT OUT 50000 MILES LATER FROM THE SAME DAM THING...

Ringo Fonebone (not verified)    February 8, 2025 - 3:01AM

My 2014 BRZ's motor sounds like it's very rapidly headed towards failure - with a mere 41K miles on it (I'm the original owner). Given how many of these motors have experienced issues, it certainly seems like the manufacturer dropped the ball on this issue. What's most amazing I'd say is that the problem seems to affect ALL model years. How can a problem that they've seen occurring again and again not get corrected over time? I'm going to get the engine's oil tested to verify that bearing material is present and then proceed with a repair from there. Personally, I hope that there's a resolution pending and those that have experienced this issue will be made whole.