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2015 Subaru Outback engine problems

50 complaints (10% of all complaints for this car). Typical mileage when it fails: 47,000. 2 crashes reported.

owner complaints
50
of this car's complaints
10%
typical mileage
47,000
crashes
2
recalls
0

Which part fails

  • Exhaust system: manifold/header/muffler/tail pipe
    1
  • Exhaust system: emission control: catalytic convertor
    1
  • Exhaust system
    1

At what mileage

Complaints by mileage at the time of the problem.

0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+

Subaru Outback engine problems in other years

1996200020052010201520202025

Specific symptoms reported on the 2015 Subaru Outback engine

Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.

Won't start 22Oil consumption 10Check engine light 8Loss of power 5Stalling 5

Related recalls

No recalls on record for this model year.

What 2015 Subaru Outback owners say

Most recent owner complaints, unedited.

Filed Jun 26, 2026 · Engine, Fuel system · CA

the federal safety agency issued a notice for a recall on the 2015 Subaru Outback for an exhaust pipe bellows crack which causes exhaust noise and odor which affects emission and engine performance. I had noticed our Subaru's exhaust smoke coming in through the air vents while idling and also a general loss of power for the vehicle. When I dug into the causes, I came across this recall and did the VIN look up on the federal safety agency website and also the Subaru website for active recalls. The Subaru website states that the recall was completed. I then called the subaru retailer to check if there were any records for the recall work that was completed for the federal safety agency ID Number: 10199936. They could not find any records. I called in Subaru corporate to see if they could shed any light on the recall. Subaru corporate says that the recall work was performed on August 6th, 2020 but is unable to tell me where it was performed or even if it was actually replaced. My local Subaru dealer has no records and Subaru corporate says that the work was performed. I am stuck with an exhaust leak that is potentially dangerous as time goes on where it might fail emissions. Subaru corporate has not wanted to address this or investigate the discrepancy, but instead asks me to work with the dealer to get records. The dealer says there's no records of the work ever being done. So I'm in limbo with a particularly faulty car.

Filed Jun 5, 2026 · Engine · 244,000 miles · AZ

The contact owns a 2015 Subaru Outback. The contact stated that while driving at an undisclosed speed, the exhaust manifold detached from the vehicle. Due to the failure, the vehicle was towed to the residence. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The dealer advised the contact that a recall repair was previously performed on the vehicle, which was related to an exhaust pipe cracking, and that additional repairs would be at the owner's expense. The manufacturer was notified of the failure. The approximate failure mileage was 244,000.

Filed Oct 31, 2025 · Engine · 110,000 miles · CA

The contact owns a 2015 Subaru Outback. The contact stated that while driving at an undisclosed speed, and while at a stop light, there was an abnormal exhaust fumes odor inside the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed with a cracked exhaust pipe. The vehicle was not repaired. The manufacturer was contacted and confirmed that the vehicle was previously repaired under Service Program Bulletin: WUJ-95 but no additional assistance was provided. The failure mileage was approximately 110,000.

Filed Sep 25, 2025 · Engine · 135,000 miles · WA

The contact owns a 2015 Subaru Outback. The contact stated that while starting the vehicle, there was an abnormal exhaust odor entering the cabin of the vehicle through the vents. No warning lights were illuminated. The contact stated that the vehicle was consuming an excessive amount of fuel. Before the contact purchased the vehicle, the contact became aware that the vehicle had been repaired under recall for the catalytic converter. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the issue. The failure mileage was approximately 135,000.

Filed Sep 22, 2025 · Acceleration, Brakes · IN · crash

I was within the town limits so I was driving slowly. When I approached the first stop light in town I saw that it was red. There were of three or four vehicles stopped at that light. At that point I was probably only going 5mph. I took my foot off of the gas pedal and put my foot on the brake to make a slow stop. Instead, the car accelerated rather quickly. I continued to brake but the car seemed to speed up. I was able to avoid hitting the truck in front of me by going around it. No vehicles were coming towards me but there were some stopped at the other side of the light. I drove up on the sidewalk to avoid hitting anyone. At that point the front passenger side of the car hit & snapped a pole. The car did not stop immediately upon impact. It stopped acclerating and came to a stop about 10 feet past the pole. I am not sure how fast the car was moving when it hit the pole but I was only going about 5 mph when I put my foot on the break. I would estimate the distance my car traveled from the moment I put my foot on the break until the car stopped was approximately 100-120 feet. It felt like the car went into the cruise resume mode and was trying to accelerate to a predetermined speed. I had not been using the cruise control that day but that is exactly what it felt like. There was one other time this year that the car lunged forward without using the gas pedal. It stopped quickly for me and I just assumed that I had hit the cruise resume button, although I also hadn't been using the cruise that day. The insurance company took the car to an impound lot two hours away. I am sure there has been no inspection and my insurance has not informed me of the status of having my car totaled or repaired. Because of the age of the car, and damage, they think it will be totaled. Yes, my safety and the safety of anyone near me was at risk. The car malfunctioned and the fact no one was hurt was miraculous. There were no warning messages before this accident.

Filed Dec 5, 2023 · Engine · CA

The cam carrier has a leak that is causing oil to slowly leak out of the car. The current issue is causing me to have to regularly add oil to the car. My safety is at risk as the car engine could fail while driving which would be me and others at risk. My understanding is that the leaking oil could also cause other parts to fail such as the O2 sensor. The recommended repair from the local Subaru dealer is to reseal the cam carrier at an estimated cost of $4,744. I attempted to contact Subaru after reading that many others have had this same issue and some have received monetary compensation to get the repair completed after complaining. Subaru has been very difficult to get in touch with and doesn't seem to want to respond to the issue. The only warning I have had was the oil engine light coming on multiple times to which I proceeded to add oil to the car.

Filed Nov 2, 2023 · Engine · NH

The car had a recall on it for the catalytic converter and front pipe and bellows being cracked. It was replaced under a service bulletin put out by Subaru at 104,000 miles in 2020. I just went to get the vehicle inspected in 5/2023 and the exact same part is failing once again. It will not pass inspection. This causes exhaust to leak back into the car (including carbon monoxide) given the converter/bellows are parts that come off the engine right under the driver/passenger's front seat. I have called corporate Subaru to see what could be done and they refuse to do anything since they told me the car is a 2015 and had 167,000+ miles. At this point, it will cost me a few thousand dollars to fix at which point has to be done by Subaru and they will replace it with the exact same parts that have proven time and time again to be a poor design and fail. Or I can take it to an exhaust specialist to be fixed.

Filed Aug 17, 2023 · Electrical, Engine · NY

#1. I replaced the battery in June of 2022 after all the dash warning lights came on. My eyesight safety feature was rendered in operative. After the battery was replaced, all the warning lights eventually went out. In July of 2023 the same scenario happened again. I returned to Advance Auto retailer and the store manager checked the battery. She replaced the battery with a new one of greater cold cranking amps. she was most knowledgeable and extraordinarily gracious. I asked her to check the alternator for proper function and was told it was functioning as it should. #2. On June 07, 2023, I took the automobile in for service: oil and filter change and brake pads and rotors on all four wheels. My Subaru had 68,482 miles on this date. The technician (who previously was employed by a local Subaru dealership) noticed that the engine was leaking oil and diagnosed the timing cover gasket was leaking oil. Oil leaking would contribute to the bad smells entering the passenger compartment. The gasket and three seals were replaced at a cost of $1329.94 plus 8% tax. Online research reveals that Subaru"s boxer engine suffers chronic oil consumption and seal problems. Subaru of America relies on the consumer to eat any repairs rather than fix the problem that has been going on for years.

Filed Jun 22, 2023 · Brakes, Engine · 80,700 miles · CA

The contact owns a 2015 Subaru Outback. The contact stated that while driving 67 MPH with the cruise control activated, the vehicle suddenly decelerated to approximately 25-30 MPH while depressing the brake pedal. The contact stated that the vehicle stalled. After pulling over to the side of the roadway, the contact was able to restart the vehicle and drove to the residence. The vehicle was taken to the dealer however, the cause of the failure could not be determined. The contact's wife stated that the failure had occurred a year prior while driving approximately 55 MPH. The failure only lasted for several seconds. The vehicle had not been diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 80,700.

Filed Mar 21, 2023 · Electrical, Engine · NC

Oil consumption issues. The oil is burning more then it should. Oil light would come after 2 to 3 more after an oil change. The dealership has been notified and is working on ordering new parts for the engine. Replacing the small block of the engine. Had less the 100k miles when this problem accured. Electrical issues. The battery is being drained after the car is turned off. Car would not start in the morning and need to be jumped. Additionally, battery eventually dies and needs to be replaced. Dealership has been notified.

Questions about the 2015 Subaru Outback engine

Does the 2015 Subaru Outback have engine problems?

Owners have filed 50 complaints about the engine of the 2015 Subaru Outback, 10% of all its complaints.

At what mileage do 2015 Subaru Outback engine problems start?

The typical (median) mileage in owner complaints is 47,000 miles.

Is there a recall for the 2015 Subaru Outback engine?

There is no recall for this problem on this model year.

Other 2015 Subaru Outback problems

Visibility 143Electrical 127Transmission 37Body 33Brakes 28Acceleration 26Fuel system 18Driver assistance 15Airbags 14Steering 13Wheels 8Suspension 5Lights 4Seats 4Seat belts 2

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