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Subaru Hit With 3rd WRX/STI Engine Failure Lawsuit

Subaru faces a third lawsuit over alleged WRX and WRX STI 2.5-liter engine failure. See why the 2.5-L boxer is under attack again.

Subaru of America is facing another lawsuit over alleged engine defects in the 2009-2014 WRX and WRX STI performance models. Both models are powered by a 2.5-liter turbo boxer engine in which the newest lawsuit contends a flaw in the pistons causes premature engine failure.

This is the third lawsuit against Subaru’s WRX and WRX STI performance cars in the last six months. In October of last year, Torque News reported Subaru of America (SOA) had a lawsuit filed against them claiming "an insufficient supply" of oil to connecting rod bearings caused engine failure from metal shavings in the oil in 2013-2014 WRX and WRX STI models. In December, a second lawsuit was filed claiming a crankshaft defect can cause “premature catastrophic engine failure” in 2009-2014 Subaru WRX and WRX STI powered by a 2.5-liter turbo boxer engine.

The Courier Post reports a third lawsuit has been filed again Subaru of America. The article says, 2009-2014 WRX and WRX STI performance models have “improperly designed and manufactured pistons.” The lawsuit contends cracks in the piston ring lands, (separations between the piston rings) can cause complete engine failure and subject owners to costly repairs.

This third lawsuit was filed last week on March 18, by Christopher Thompson, a Subaru WRX STI owner from California, who is seeking more than $5 million in damages. Thompson’s attorney, Gary Graifman with the law firm Kantrowitz, Goldhamer & Graifman, P.C. of Chestnut Ridge, New York, declined to comment in the Courier Post story.

The third lawsuit says Subaru Corporation used modified 2.5-liter engines from Forester XT and some Outback turbo models and pumped up performance to provide nearly twice as much horsepower for the WRX and WRX STI models. The lawsuit contends the changes in the high-performance cars were made in a way that was cheaper for Subaru but “did not include necessary internal engine modifications to prevent damage to the piston ring lands and left the piston “more brittle” leading to engine failure. The suit also alleges Federal clean air standards led the Japanese automaker to make adjustments “that further strained the already overstressed internal engine components.”

All three of the lawsuits assert Subaru of America and Japanese parent company, Subaru Corp., concealed the alleged problems from customers. With thousands of 2009-2014 Subaru WRX and WRX STI sedan and hatch models on the road, there’s the potential to cost Subaru millions. Michael McHale, Director of Corporate Communication for Subaru, told the Courier Post, "We deny the claims and point to the long history of WRX sales" he said Wednesday. Stay tuned.

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Photo credit: Subaru USA

Comments

Swannobiwan (not verified)    May 29, 2018 - 11:42AM

I have a 2014 STI hatch, 6,000 miles, hope I don't have catastriophic failure, but I don't get on boost until after 3K RPM. Checked oil this morning, was a quart low. Very surprising as the car is RARELY driven hard. Time will tell................

SP (not verified)    June 17, 2018 - 7:17AM

I just had my Subaru Forester's (2013) engine develop a "rod-knock". It is at the authorized service center right now. Their diagnosis was that the engine needs to be replaced and they "think" it will be covered by the Warranty. Please guys, let me know what stack of paperwork I should prepare to justify the warranty coverage, or fight a denial of coverage. What address/phone should I contact to fight a denial? Many thanks in advance. I will post updates on my case.

Lati2ude20 (not verified)    June 29, 2018 - 5:45PM

In reply to by SP (not verified)

2016 pre egnition engine failure led to my spark plugs melting into internals and motors was replaced under warranty. FA motore 16 models are coming in waves. Not enough to cause a recall yet when you have to replace the FA motore twice would be a sign that there is risk to be managed post haste with this model.

SP (not verified)    August 3, 2018 - 8:47AM

In reply to by SP (not verified)

Update: The warranty company (First Extended Warranty Corp.) got the engine replaced. It took a month for the approval to come by and a few days for the replacement to be done. Paid for a rental car out of pocket for the whole time. Do not buy a Subaru.....they are not reliable.

Ruben Sanchez (not verified)    July 8, 2018 - 10:54PM

My 2015 sti (100% stock) had a blown motor at 37,000 miles, with my wife and kids in the middle of nowhere coming back from a road trip. I've had 6 subaru's and I use to think Subarus were bullet proof until this happened. Subaru of America doesn't care and wont help. If you want them to respond you will need a lawyer! Don't try to be a nice guy... The dealer took 74 days to complete repairs since according to them, the had a huge backlog of blown engines. Im now stuck with a car I don't trust, and has lost value. I will trade in soon and they just lost a very loyal customer. Anyone on the fence over buying a Subaru, stay away!!!

Mel Furrer (not verified)    October 20, 2018 - 3:41AM

In reply to by Ruben Sanchez (not verified)

Whst state did this happen in? I know within Nevada if repairs surpass 30 days lemon law triumphs dealership in civil court of law.
Engine replace very grateful for the warranty however poor workmanship at the dealership in Las Vegas led to manifold replacement due to forgetting to put the gasket when dropping warranty motor in. In addition to the 7 quarts of oil new motor had to tolerate of back pressure it tolerated for 4 months This led to turbo burning out, driving around for four months yet all is up to spec is what I was told. Not even one check engine light no codes and back on the road with faulty sensors that do me no good.
Frustrated, loosing faith in this brand and getting to a point of distrust. Hang in there and keep updateing if possible. Aloha.

Ryan (not verified)    July 26, 2018 - 9:19AM

Just had this happen for the second time. First time was exactly 1 year before this most recent one. I've never had anything like this happen to any other car. I've always heard such good things about Subarus, but I guess they dont make them like they used to.

Ilissa Strychalski (not verified)    July 31, 2018 - 1:54PM

It happened to my 2013 subaru impreza wrx premium. i have 97,635 miles on my car and i get the oil changed regularly. luckily i kept all my receipts. my car is at a subaru dealer now. waiting to hear what's next. Praying Subaru will replace my engine. (Fingers crossed)

Phil (not verified)    August 6, 2018 - 2:25PM

I have a 2013 STI. Bone stock and @ 29k miles it had catastrophic engine failure due to the faulty piston rings. It took a month to get everything resolved but SNA rebuilt the engine with a new short block. Luckily I had the 3yr extended warranty and they honored it. That happened towards the end of 2016. Since then I've babied the car and always warm it up before driving anywhere. Last Monday the check engine light came on but then turned off by Tuesday morning. I still took it into the dealership to have it checked out on Tuesday. They didn't see any codes or issues so I got an oil change and sent me on my way. Friday afternoon the car started making that same knocking/rattling sound from a couple years ago. My heart sank. On the way back to the dealership on Saturday morning it died on me. I had to get it towed to the dealership. Of course they are not sure what the problem is and have to disassemble the engine to get to the root cause which I'm sure is the exact same thing that happened 2 years ago. My car has under 45k miles and this is now the second time in 5 years it has had complete engine failure. My extended warranty is still good for another year, here's hoping SNA honors it again. I love my STI so much but, this is killing me.

Sadie kay (not verified)    August 31, 2018 - 7:09PM

I had a 2014 WRX and my engine blew at 90k (I had a 7 year or 100k mile warrenty) Lithia Subaru of Fresno blamed me for the engine failure and when i called Subaru of America it was a nightmare to. Although they said they would help me pay for half my motor which was estimated by lithia to be over $12,000 I still had a warranty! It should have been covered! It was a horrible and stressful situation I spent just under $4,000 on a rental for 2 months which i was told lithia would help but never did. It was absolutely ludacrise! It actually took a toll on me metally and emotionally I ended up just giving up because they wore me down and belittled me even accusing me of tampering with my cars computer! I was at the end of my mental rope so stressed out from the situation they broke me and I just gave up. It makes me sick thinking about it.

Ruben sanchez (not verified)    September 2, 2018 - 7:26PM

I was told your local office of consumer affairs can help, but it was too late for me. Bottom line, Subaru is not reliable and I recommend everyone to stay away. I felt cheated too! I gave a lot of time and money to this brand and it gave me nothing but frustration and financial loss.

Kirk Gallagher (not verified)    September 10, 2018 - 9:17PM

2014 wrx 55,000 miles . Told the dealer when I bought it used with 16,000 miles I heard a engine noise . My motor just went . I have a gold package warranty for 100,000 miles and dealer wants to charge me 7,000 ,stating since I didn't keep records of proof of oil purchase it doesn't meet warranty. I need help if anyone has information on who to contact

Michael Majury (not verified)    October 20, 2018 - 11:20AM

In reply to by Kirk Gallagher (not verified)

Bought an08wrx sti the car dealership I bought it from sent it to a subaru dealership in Bend oregonThey said car was fine.with under 90k and 80 days later along with 2 oil changes it spun a rod. Bearing.I have no car now and I make payments on a blown motor they sold me.I warmed the car up religiously and never hammered it now I need 6 k to fix it.Im screwed.

Denise (not verified)    November 5, 2018 - 10:44AM

Took my 2014 wrx sti (58,000 mi) into dealership last wed. While driving locally, my car just shut down. No warning sounds, nor any "check engine light". Restarted as it was rolling, it conked out again, and restarted enough to pull off road. Upon third restart, car was making high squeaking noises, started shaking; had to be towed to dealer. Initially they replaced battery and battery cable. As they were test driving it, heard knocking in engine. Notified today, need short block. The dealer really jumped on taking care of it, but after reading everything on this site, and others, I can see why! This is the third major thing needed for this car in 4 years. I do love the car, but was feeling like I got a lemon. Now, at least, I know I'm not the only one. Thank goodness I bought the extended warrant--gold when I bought the car new, unbelievable--God was looking out for me :) Thanks for all the information. I'm going to dealer to ask a few questions!

Dru (not verified)    December 21, 2018 - 8:58AM

2013 WRX - made it to 125k when the triad of lights gave me indication something was up. Eventually was told it was the top end that needed to be replaced - $$$$. Replaced it, how there's an oil consumption problem. They thought they figured that out - some sensor stuck open. No that's not it - in less than 2,500 miles the car consumes 4 qts of oil! This is the second WRX where I have had this failure. SOA is NO help! Oh wait, no they would give me $1k toward another Subaru. Sorry SOA, I will NOT EVER get another Subaru. I have also made sure to spread the word when people ask about my car. A clear - DO NOT BUY Subaru message from me. Subaru needs to own up, give financial assistance, and change the engine. This WAS to be the last car and need another 5 years out of it - shouldn't be an issue for Subaru. The guys at the dealerships are worthless - hiding it all for SOA but if you go to a 3rd party you definitely have no repercussion with SOA. This has been ongoing since May.... What are you going to do for all of us SOA????

Jack (not verified)    January 8, 2020 - 3:10PM

In reply to by Dru (not verified)

The problem you face with Subaru might include that a person with a European name seems to be the CEO for some of you. I suggest you write to Japan and put it to them that you believe they are honourable people and ask for their direct assistance. Local CEO will be looking after his own backside. That all said Subaru is also faced with I imagine tens of thousands of nit wits which pump up their engines...and in that I include 'tuners'. They also have vast numbers of people not knowing how best to maintain and drive a turbo aspirated car. I'll give an example from another car which was AWD, the Sapphire Ford Cosworth and the 2wd versions. "Proper cars" use RWD. FWD can be a dangerous curse. The Sapphire, turbo 2L could easily be wound up to 350Hp...at which point if not already happened, the transfer case was likely to 'blow'. That didn't stop people finding out "the hard way" by 'tuning' their car up to say 450Hp. Others, very commonly English owners, booted their RWD engines as far as 750Hp...then finding they couldn't handle the car particularly in English weather they sold at massive losses as time went on. The 'age of knowledge' has produced some of the technically most ignorant people I have encountered and lost is the rule of thumb that doubling compression ration squares the load on the bearings....that includes pistons rods and wrist pins .Design of turbo engines is not to provide a basis for rev heads to get into climax but to do the job required, within parameters reasonably anticipated. Immediately I say Subaru might be failing in design...it seems it is....however when faced with a multitude of claims they have to try to sort out which people were just 'victims' and which were/are idiots who brought the problem on themselves, now trying to make claims. Another hot car in standard trim which might have even blown off the WRX (I don't know) was the Renault R5 turbo. I was lent one by a garage in France. After warming it up softly I put the boot into it...it completely changed lanes,,,into what would have been oncoming traffic. Inadequate maintenance enabled turbo-steer. I later drove another which didn't have that problem...and they are a fast car. I had the option of buying for under Au $40,000 a twin turbo centre-mounted engine R5...or a Porsche Flachbau in showroom condition. I chose the Porsche. Big mistake!! In these grand motor cars one of the things there is a limit in design which can only get 'so much' attention...idiot proofing. It seems Subaru has been remiss in design, coupled to maltreatment. It's possible some design improvements may be inhibited by Porsche patents. Bear in mind this also...the tubo was introduced into passenger cars to keep taxation down ...small engine could give great power at lower taxing on engine size. They can be driven with better gas mileage. They have limitations and though reading excited claims to the contrary are no really a tower's vehicle. The flat 4/6 engine kept centre of gravity lower than the vertical array engines thus avoiding some safety requirements. The cost of high octane is ridiculously high so some people put lower octane or methanol fuel in the tank...possibly creating detonation. A water/alcohol injection system is safer. Another problem arises...when you buy say '98"...is it??..how long \has it been sitting in the supplier's tank (or on yours...incidentally but very importantly). How much water is in that tank?...and mixed with the fuel during tanker top-up? When I was younger I drove cars using 140 aviation fuel, I don't know if its available now but that's too high and was much too expensive...back when 'super' fuel was about 40c /gallon!..

Getting back to it...you my think you are driving your Subaru doing all the right things...correct oil changes, correct oil, correct fuel, only to find an engine problem because the fuel is contaminated...but which place supplied it?. Having created one of the fastest road cars on the planet way back then, it may have been limited by design patents but aided by much lower cost fuel back then. The question becomes where do I buy what is actually premium octane fuel which is fresh yet not contaminated?...Voila.

Eric ramirez (not verified)    January 2, 2019 - 11:17AM

my 2010 Subaru wrx 2.5 impreza the third shift broke..got it fix, Now it makes a tapping sound and the dealer will not honor its warranty they day that the car were modified but they will look what's wrong with my wrx...
and I just found out that the Subaru were facing third lawsuit"... failure to install necessary internal engine..

Brian (not verified)    February 19, 2019 - 7:59PM

My 2009 STi went at 56K. I knew the risks before I brought it, so I got the extended warranty and the company is replacing the short block at the dealership. My fellow Subaru owners protect your investment at all times.

Holly Bogossian (not verified)    February 20, 2019 - 8:34PM

I understand this is for WRX/STI Imprezas but I thought I would pass on my Impreza Outback woes. I had the short block replaced at 26,000 & 51,000 miles. Subaru paid for these after some serious arm-twisting. Today the engine seized again at 58,000 miles. Have not heard back from the dealer yet but I am so bummed. I know how to take care of a car—all my previous cars (not Subaru’s) have had 200k or more miles on them, ranging in age from 15-25yr old cars. Well thanks for listening. I just needed to vent. Wish I could be part of this lawsuit. Good luck to those involved. These companies need to be held accountable so good on ya!

BigDaddyRex (not verified)    March 13, 2019 - 3:29PM

Owner of a 2011 WRX. Stage 2 Tune with a downpipe, but a pretty mild tune that has been on since about 25,000 miles. Just hit 91,000k and the motor seems to have had ring land failure. And my warranty (I purchased extended) expired last month. My dealership put in for mercy with SOA and heard today that they will honor the expired warranty aith a $100 deductible. New motor going in. I know most of the commentary here has been negative, but Subaru came through for me.

Brian (not verified)    March 14, 2019 - 10:17PM

Good and bad news on my end. The extended warranty covered my engine at 56k with a new short block, but my clutch and flywheel was trash. Needless to say I was expecting to pay under $1,000, but at the end my bill was $1,595. Car is running great even though I found minor problems during pickup.

Allen Gordon (not verified)    March 24, 2019 - 2:42PM

My last two WRX (2002, 2010) had catestrophic engine failures. The 2002 at 78,000 miles suffered a bearing failure. I got a 2010 in 2012 with 17,000 miles on it. Great condition. Suddenly one morning when I started it, there was a ticking sound from the engine compartment which I thought was the loose pan under the oil pan which had been rattling. I drove 7 miles, stopped to inpect it again. The car would not restart although it was turning over normally. Dealer inspected, couldn't find the problem recommended an engine teardown or drop in a short block. Both cars were maintained per specs. Wrote to Subaru of America for relief since we've been driving nothing but Subarus for 30 years. The first engine failure was covered on extended warranty but only after I agreed to a tear down for verification. No such luck for the latest one. Additionally, my wife's 2008 subaru legacy sport has been a very unhappy choice for us as well, but at least its running.

Allen Gordon (not verified)    March 24, 2019 - 4:08PM

My last two WRX (2002, 2010) had catastrophic engine failures. The 2002 at 78,000 miles suffered a bearing failure. I got a 2010 in 2012 with 17,000 miles on it. Great condition. Suddenly one morning when I started it, there was a ticking sound from the engine compartment which I thought was the loose pan under the oil pan which had been rattling. I drove 7 miles, stopped to inpect it again. The car would not restart although it was turning over normally. Dealer inspected, couldn't find the problem recommended an engine teardown or drop in a short block. Both cars were maintained per specs. Wrote to Subaru of America for relief since we've been driving nothing but Subarus for 30 years. The first engine failure was covered on extended warranty but only after I agreed to a tear down for verification. No such luck for the latest one. Additionally, my wife's 2008 subaru legacy sport has been a very unhappy choice for us as well, but at least its running.

Ted Bargiello (not verified)    April 4, 2019 - 9:18PM

Have had no problems with either 2009 and 2012 WRXs. The terms of the settlement are ludicrous (extending warranties for 8 years or till 100K. That means 1 year on the 2012 but really nothing as it has over 100K as I expect would most 7 year old WRX's). However, I see the lawyers stand to make 650K, so the settlement seems to work for them. Most owners will probably not benefit from the terms of the settlement, and if the problem is real, Subaru will not be liable for much. Not surprised they settled, seems that the lawyers are the ones that will benefit the most. Not surprised. I will opt out of the settlement.

Scott E (not verified)    April 9, 2019 - 12:01PM

This happen to my 2011 WRX hatchback just yesterday! I have slightly higher mileage at 140k all highway and 80 miles a day. But I have babied this car the last 4 years, oil changes by the dealership every 3500 miles with records. It happened while coming home from work. In cruse control I heard a noise looked at my oil pressure gauge it was below 30psi. Pulled off and got it shutdown off. I am not sure what to do now because the dealership wants 12k for engine replacement... I am afraid if I put a new motor in it this will happen again... :(

David Larkworthy (not verified)    July 2, 2019 - 9:27AM

I bought a Subaru 2009 forester xt. When the engine had "catastrophic failure" from bearings/piston rod failure I began to research how this could have possibly happened. it turned out to be part of a "stop sale" due to faulty bearings.
Neither the dealer or Subaru of America would do anything other than a 10% discount on a replacement. I went to a performance shop instead and then had 2 more engines explode for similar reasons. Subaru does not stand behind the cars they make with faulty designs and production problems.

A Holman (not verified)    July 9, 2019 - 4:59PM

Same issue here...... 2011 WRX with less than 90k and engine is on its way to the metal recycle bin. Regular maintenance and very well taken care of but I still couldn't get 100k of it. No a real big fan of Subaru right now