2016 Subaru Outback Engine Problems

There is a crack in the exhaust manifold and the exhaust smell is entering the cabin affecting driver and passengers' health. The problem has been confirmed by a Subaru dealer and an independent mechanic. There were no warning lights, I was made aware after routine maintenance by an independent mechanic. The same part has failed in multiple Subaru models: Recall WUJ-95 (SOA says my car is not covered in the recall/campaign due to my car's production date being 24 days after the "Affected Production Dates") . Additionally, Subaru of America extended the exhaust pipe warranty on the same part on other models, as late as 2018, so the part continued to be in use and problematic. Subaru of America says replacing the part is not covered by a recall for my car, however I feel strongly that it SOA should replace the part due to the proximity of my production date and the continued issues with the part across multiple models.

NHTSA ID

11751682

Incident

Apr 2, 2026

leak in cam carrier gasket caused large ammounts of smoke to fill engine bay and enter cabin air system. Struggled to breath and vision to an extent was obstructed. when car was parked, smoke continued to fill the engine bay. problem was confirmed by an independent technitian, with the vehicle undergoing a complete inspection about a year ago from the dealership of purchase. no warning lamps turned on until enough oil had seeped from the leak in the liquid silicon gasket, at which point the low oil warning light had turned on.

NHTSA ID

11729536

Incident

Mar 14, 2026

My 2016 Subaru Outback CVT transmission has exhibited an intermittent jerking and grabbing sensation when accelerating from a stop, worse when cold, since at least February 2023. This is a known defect covered under Subaru warranty extension bulletin 16-115-18. February 2023 — An authorized Subaru dealer documented the complaint in writing. The technician stated the vehicle never warmed up during the test drive and dismissed the concern. The CVT issue was never repaired. I was never informed of Subaru's CVT warranty extension program. February 17 2026 — seven days before my warranty expiration — the same authorized Subaru dealer physically identified and documented a CVT oil pump cover leak. The same jerking complaint was again documented in writing. No repairs were made and the warranty expired one week later. The CVT defect has been physically confirmed by an authorized Subaru dealer within the warranty period and Subaru of America has denied my warranty claim in writing. This issue presents a safety concern. The unpredictable jerking and hesitation when accelerating from a stop creates dangerous situations in traffic, particularly at intersections and when merging. The vehicle is available for inspection upon request. Subaru chose to handle this known widespread defect as a quiet warranty extension rather than a mandatory recall despite hundreds of owners reporting identical symptoms.

NHTSA ID

11727074

Incident

Feb 17, 2026

My 2016 Outback 2.5L model experienced an exhaust noise and/or odor coming from cracks at the bellows section of the front exhaust pipe which includes the catalytic converter. It was diagnosed as leak occurring at the front exhaust pipe. Quoted repair for replacement part only is $2700 plus $1000 labor to repair. Upon investigation, it was discovered that Subaru Recall WUJ-95 with subject Exhaust Pipe Front (EPF) Bellows Cracking was issued in 2020. My specific VIN was excluded from this recall but I have experienced the exact issue described in the recall. As a result of this situation and exhaust inhalation the car is not able to be driven, this cause breathing issues for me, my wife and our 9 month old baby.

NHTSA ID

11717808

Incident

Feb 11, 2026

Steering wheel controls frequently fail to work properly on the cruise control system specially the speed control. Also the exhaust system bellow has cracked. The moonroof leaks into the cabin and floor area of the passenger side. Also leaking into the A pillar on the passenger side. I only have a picture of the engine valve cover that is leaking and had to be replaced. I have video of the exhaust leak coming from the crack in the bellow pipe. Do not have video of the cruise control speed issues as I can’t take a video while driving.

NHTSA ID

11695930

Incident

Oct 24, 2025

Accelerated on its own doing 25mph and accelerated quickly and took pumping brakes to get it to stop

NHTSA ID

11687622

Incident

Sep 12, 2025

The contact owns a 2016 Subaru Outback. The contact stated that while driving at an undisclosed speed, the low oil warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the engine seal had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 110,000.

NHTSA ID

11682820

Incident

Aug 25, 2025

Mileage

110,000 mi

Safety concern - Exhaust entering into the car. Smells of exhaust. Warranty should be extended to 15 years, 150,000 miles as was done on identical part 2017-2018MY Subaru Forrester Exhaust Pipe Front (EPF) Bellows Cracking. This part is known to be defective. 1. My 2016 Subaru Outback 2.5L if manufactured 12/9/2013 - 9/30/2015 is covered. My Subaru just outside this window, manufactured 12/2015. Service Program Bulletin Number: WUJ-95. 2. My Subaru is within the 80,000 routine emissions warranty, though 1 year outside the 8 years. 3. This Exhaust Pipe Front (EPF) Bellows Cracking happens on the identical part in the Forester and has an Exhaust Pipe (Front) Warranty Extension (W122-013) to 150,000, 15 years. Attached - Repair estimate, Service Program Bulletin WUJ-95 dealing with this year Outback, Service Bulletin Number 09-84-22 dealing with identical part 2017-8 Subaru Forester

NHTSA ID

11667716

Incident

Apr 9, 2025

Exhaust leak in or near exhaust manifold / bellows / flex pipe identical to problem identified in WUJ-95 recall, confirmed by both dealer and independent mechanic. Problem produces 'growl' and fumes in passenger cabin. This problem likely existed when we purchased the car used from LaFontaine Subaru in Commerce, MI.

NHTSA ID

11667637

Incident

Aug 16, 2024

Exhaust gas smells in the driver cabin and the exhaust shield and the pipe is breaking off.

NHTSA ID

11661371

Incident

Aug 30, 2023

The contact owns a 2016 Subaru Outback. The contact stated that there was an exhaust odor entering into the cabin of the vehicle, which was most noticeable when the heater was activated. The contact stated that while the vehicle was idling, there was an abnormally loud sound as if the exhaust was releasing in large amount of fumes. There were no warning lights illuminated. The contact stated that the failure was related to the emissions and was related to NHTSA ID Number: 10182196 (Engine and Engine Cooling, Equipment, Equipment Adaptive/Mobility). The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure and confirmed that the VIN was not covered under NHTSA ID Number: 10182196 (Engine and Engine Cooling, Equipment, Equipment Adaptive/Mobility) or under warranty. The manufacturer opened a case and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was unknown.

NHTSA ID

11660635

Incident

Sep 13, 2024

The contact owns a 2016 Subaru Outback. The contact stated while the vehicle was occupied and parked at residence and attempting to start the vehicle, there was an abnormal sound coming from the underneath the vehicle. The contact stated while driving at various speeds there was exhaust fumes entering the cabin of the vehicle. The vehicle was taken to the dealer where it was diagnosed and determined that front exhaust manifold connected to the catalytic converter needed to be replaced. The contact stated that the technician inspected the vehicle and became aware that the exhaust pipe was rusted. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The manufacturer informed the contact that there were no recalls associated with the VIN. The contact related the failure to a Service Program Bulletin: WUJ-95R (Exhaust Pipe Front (EPF) Bellows Cracking); however, the VIN was not included in the bulletin. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was 171,000.

NHTSA ID

11654163

Incident

Oct 15, 2023

Mileage

171,000 mi

Original owner of a 2016 Subaru Outback 2.5L, took in to Midas for small exhaust leak. Midas found that the Exhaust Pipe Front Bellows was cracking. They sent me a quote to repair the bellows and also a print out of Service Program Bulletin Number WUJ-95R n the 2015-2016MY Outback 2.5L referring to the Exhaust Pipe Front (EPF) Bellows Cracking. I called to speak with Subaru's corporate recall center and they said my VIN was not part of the recall, however, my car was manufactured in 2015 and is having the exact same issues as the other 2016 Subaru Outback 2.5L. Our safety is being put at risk as CO (carbon monoxide) is leaking into the vehicle due to the cracking in the Exhaust Pipe Front Bellows.

NHTSA ID

11637415

Incident

Jan 21, 2025

The left front drive axel cracked while we were driving on an overpass connecting two highways. We didn’t hit or bump anything. The car just stopped, like the brakes were slammed on, except the brakes didn’t work. As we were on an incline, the car started rolling backwards, but fortunately the emergency brake worked. It happened so abruptly, I wasn’t able to fully pull off the road and my children in the back seat were screaming for their lives as truck after truck whizzed by rattling our car with their horns blaring missing us by inches. The police and fire trucks eventually blocked us from traffic until we could get a tow. The engine worked, but we couldn’t get into any gear. The mechanic said it must’ve been a faulty part to have gone like that. When the axel broke, it damaged the front differential and the transmission so the car isn’t very drivable. On a less dramatic note, a month earlier, both back doors stopped working on the same day!! The child locks failed and the doors couldn’t be opened. I consider this a safety hazard, so we spent $$$ to fix it. As we take good care of our car, I am very curious why it’s failing so spectacularly all at once.

NHTSA ID

11621014

Incident

Oct 12, 2024

Excessive oil consumption. Have to add a quart every 3300 miles. Twice in last two months on highway and city street, low oil warning came on. Mileage on auto is 72000 miles. All scheduled maintenance performed by Subaru dealer.

NHTSA ID

11608302

Incident

Aug 13, 2024

There is a strong smell of engine exhaust in the cabin as other people have submitted similar complaints.

NHTSA ID

11604741

Incident

Jun 1, 2024

Recently, My daughter noticed the strong smell of exhaust in the car. It turns out the there is a leak in the exhaust manifold. Subaru issued SERVICE PROGRAM BULLETIN WUJ-95R to address a issue where a bellows in the exhaust cracked and allowed the leakage of exhaust gases in front of the CC, releasing noxious gases into the air and into the driver compartment. Problem is they only applied this to a small amount of the production of the 2016 outback. This issue has been occurring on 2015 to 2019 models since and they did not include them in the recall. To fix this issue because of a design flaw the CC (Catalytic Converter) also needs to be replaced at a cost of over 3000 dollars. My ask is that they should extend this recall to cover all the cars with this design as it is a serious health issue to drivers of the cars. This is not an issue where rust is causing exhaust to break out, This is a manufacturing design issue where cars are having the issue which were only a couple years old. In my case, the Bellows in question were replaced by the previous owner at less than 4 years old and I did not know about that. So when that repair failed(not the permanent fix offered in the service bulletin) Subaru told me I am on my own though the CC should be covered to 150K in New York State. I feel they should be responsible to address this issue for all the models with the defective design.

NHTSA ID

11603563

Incident

Jun 16, 2024

Car exhaust inside the vehicle when driving at low speeds, idling, or parked into the cab of the vehicle. Only way to stop the exhaust fumes is to use the recirculate interior air. Rear hatch hydraulics are failing, hatch will not open completely and partially shuts when opened. When driving very loud squeaking from vehicle.

NHTSA ID

11581928

Incident

Apr 2, 2024

- Leaking exhaust at bellow - I had to replace the catalytic converter. - I have a bad sense of smell. I did not notice it was an issue until a passenger of mine noted a smell of exhaust while we were driving. - I read a bulletin on your websites that there was a recall of other 2016 Subaru Outbacks for this same issue. I understand that my car was not a part of this recall because of the manufacturing date, but I found it to be an odd coincidence that my car has the same issue. When I visited another mechanic initially, he immediately alerted me that he has seen many Subaru vehicles with this same issue and directed me to a Subaru dealership. - My car was finally diagnosed and repaired at Marin Subaru of CA.

NHTSA ID

11547320

Incident

Sep 22, 2023

Cam Carrier leak due to a factory design. Yes it is available for a inspection. This causes a lot of oil to leak, oil is flammable and the dealer told me there is a high risk of an engine fire due to this. Yes the dealer confirmed the problem, this is a common problem with Subaru Outbacks, there are tons of reports and complains about this. The vehicle has been inspected by Subaru dealership No warnings or lamps, Subaru dealer has known about this issue with oil leaking from the cam carrier since back in 2019 when they first brought it up to me, they only wiped the leaking fluid and never proceed to complete warranty repair to fix the issue.

NHTSA ID

11518873

Incident

Apr 4, 2023

At 59,000 miles, engine developed “heavy leak from cam carriers” by dealer service department. It was recommended that it be resealed. Engine was removed and serviced. At 112,000 miles same diagnosis was observed, along with a recommend reseal. It appears that the dealer repair was not done properly, or the repair was only temporary. This is a very labor intensive and expensive repair that needs to be done to avoid leaking oil that could ignite and cause engine fire. This seems to be a chronic problem and redesign of the repair and cam carriers are needed immediately. Subaru of America has offered to cover about 1/3 of the cost.

NHTSA ID

11518726

Incident

Apr 11, 2023

At low rate of speed, while parking vehicle accelerated without warning and damaged 3 cars . This happened previously with separate family drivers without damage. This is a serious defect and could potentially cause serious injury or death. This was not driver error. the car lurched forward with absolutely no gas pedal involvement. The previous times it happened at a stoplight with enough room in front to hit the brake. Not this time.

NHTSA ID

11516580

Incident

Apr 6, 2023

Subaru dealer diagnosed oil leaks on the valve cover gaskets. I took the car to an independent repair business and the problem was diagnosed as a camshaft carrier oil leak. Upon removing the necessary parts, the company reported to me they found chunks of silicone around the carrier. I first noticed a smell of something burning after Subaru had done an oil change about 2 months prior. I was also getting the Check Oil lamp about 2 months after the oil change. It was losing oil. That’s when I had Subaru diagnose the problem. The loss of oil could have started a fire. Parts are available for inspection.

NHTSA ID

11508206

Incident

Feb 13, 2023

I was in a parking lot at a near-complete stop. I needed to nose the car about 18 inches to move it all the way into the spot. I lightly touched the accelerator to inch the car forward, and it shot forward as if some outside force had stomped on the accelerator. The car jumped the sidewalk and slammed into the wall of the building. The car inner body bent and the car is totaled. The airbags did not inflate. The passenger in the passenger seat sustained a fractured sternum and two broken ribs from going into the seatbelt. The driver sustained a sore neck and dizziness.

NHTSA ID

11503955

Incident

Jan 5, 2023

The contact called on behalf of his mother who owns a 2016 Subaru Outback. The contact stated while driving at various speeds, there were abnormal knocking sounds coming from the engine. There was no warning light illuminated. Additionally, the contact stated that he was informed at a State Inspection that the vehicle was included in Subaru Campaign Numbers: WUJ95 and WTH68. The vehicle was taken to the dealer where it was diagnosed that the engine intake manifold was fractured. The contact stated that he informed the dealer that he would not pay a fee for the maintenance of the vehicle and the dealer informed him that the parts to repair the vehicle under Subaru Campaign Number: WUJ95 were not available. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 110,000.

NHTSA ID

11499517

Incident

Dec 23, 2022

Mileage

110,000 mi