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Case file · SUBARU-OUTBACK-2010-2014 · 4th gen (BR)

Subaru Outback 2010–2014Common problems, reliability & repair costs

The 4th-gen Outback is a practical, capable all-wheel-drive wagon — but which engine you get matters more than anything else. The 2010–2012 2.5L (EJ253) can develop head-gasket leaks; the 2013–2014 2.5L (FB25) was the subject of an oil-consumption class action over defective piston rings. The CVT and wheel bearings are the other things to watch. Buy on the engine, not the badge.

Case data plateSUBARU-OUTBACK-2010-2014

Case score

6/10

Best years

3.6R (any year — avoids the 2.5L and CVT issues), 2014

Avoid

2013–2014 2.5L (FB25) with no oil-consumption documentation +1 more

Status

Reviewed

Amended 2026-07-02

How we score →

Subaru Outback (2010–2014)
Exhibit A · Subaru Outback OSX · Public domain · Wikimedia

Engines

  • EJ253 — 2.5L gasoline, 170 hp
  • FB25 — 2.5L gasoline, 173 hp
  • EZ36 (3.6R) — 3.6L gasoline, 256 hp

Transmissions

  • TR690 (Lineartronic) — cvt
  • automatic , 5-speed
  • manual , 6-speed

Drivetrain

AWD

Body

wagon

Trims

2.5i, 2.5i Premium, 2.5i Limited, 3.6R, 3.6R Premium, 3.6R Limited

Parts desk

Subaru Outback part-number cross-reference

Start from the OEM number, then pick the brand you trust — verified equivalents for the Subaru Outback (2010–2014).

Oil filter

2.5L EJ253 4-cyl (2010-2012)
OEM part

Subaru

Check price on Amazon
Cross-ref Verified fit · 07.26

Wix

EJ-engine filter, 23 psid bypass; fits 2001-2012 Outback/Legacy 2.5

Check price
Cross-ref Verified fit · 07.26

Fram

Extra Guard; fits 2005-2012 Outback 2.5L

Check price

Verified via: parts.subaru.com - 15208AA100 Oil Filter Complete, Amazon - Subaru 2010-2012 Legacy/Outback OEM filters 15208AA100, O'Reilly - WIX 57712 fitment

Oil filter

2.5L FB25 4-cyl (2013-2014) - CHANGEOVER: different, smaller filter than EJ253
OEM part

Subaru

Check price on Amazon
Cross-ref Verified fit · 07.26

Wix

FB-engine filter, 27 psid bypass; fits 2013-2018 Outback

Check price
Cross-ref Verified fit · 07.26

Fram

Extra Guard; fits 2013-2023 Outback 2.5L

Check price

Verified via: parts.subaru.com - 2014 Outback 15208AA15A, Walmart - WIX 57055 fits 2013-2018 Outback, Walmart - FRAM PH7317 fits 2013-2023 Outback

Oil filter

3.6L EZ36 H6 (all years, 2010-2014)
OEM part

Subaru

Check price on Amazon
Cross-ref Verified fit · 07.26

Wix

fits 2000-2019 Outback 6-cyl 3.6L

Check price
Cross-ref Verified fit · 07.26

Purolator

cross-references to Wix 51334

Check price

Verified via: parts.subaru.com - 15208AA031 (3.6L), PartCatalog - WIX 51334 Subaru Outback 3.6L application, go-parts - 2000-2019 Outback 3.6L Wix 51334

Engine air filter

all engines (2.5L and 3.6L), 2010-2014
OEM part

Subaru

current number; supersedes 16546AA090 / 16546AA10A

Check price on Amazon
Cross-ref Verified fit · 07.26

Wix

Check price
Cross-ref Verified fit · 07.26

K&N

Check price
Cross-ref Verified fit · 07.26

Fram

Check price
Cross-ref Verified fit · 07.26

Mann

Check price

Verified via: subarupartsdeal - Outback air filter (2010-2014, both engines = 16546AA12A), parts.subaru.com - 2013 Outback 16546AA12A, Walmart - K&N 33-2304 fits 2008-2019 Outback

Cabin air filter

all engines, 2010-2014 (not engine-specific)
OEM part

Subaru

Check price on Amazon
Cross-ref Verified fit · 07.26

Wix

Check price

Verified via: parts.subaru.com - 2012 Outback 72880AJ00A, PartsGeek - WIX 24483 fits 2010-2019 Outback

Spark plugs

2.5L EJ253 4-cyl (2010-2012) - qty 4
OEM part

Subaru

Subaru-boxed NGK SILFR6A

Check price on Amazon
Cross-ref Verified fit · 07.26

NGK

Laser Iridium, stock #5468, gap 0.043 in; NOTE the '-A-' suffix vs the 3.6L's SILFR6C11

Check price

Verified via: parts.subaru.com - 22401AA670 (NGK:SILFR6A), NGK.com - 5468 SILFR6A11 Laser Iridium

Spark plugs

2.5L FB25 4-cyl (2013-2014) - qty 4 - DIFFERENT plug than EJ253
OEM part

NGK

OE Laser Iridium, stock #93482, gap 0.044 in

Check price on Amazon

Verified via: Amazon - NGK SILZKAR7B11 for Outback 2.5i 2013-2017, sixityauto - NGK Laser Iridium 2013-2017 Outback 2.5L H4

Spark plugs

3.6L EZ36 H6 (all years) - qty 6
OEM part

NGK

OE Laser Iridium, stock #7505, gap 0.043 in; note '-C-' suffix vs the 2.5L EJ253's SILFR6A11

Check price on Amazon
Cross-ref Verified fit · 07.26

NGK

Iridium IX, listed as compatible upgrade for 3.6R

Check price

Verified via: NGK.com - 7505 SILFR6C11 Laser Iridium, Amazon - NGK SILFR6C11 for Outback 3.6R 2010-2014

Front brake pads

2.5i 4-cyl (EJ253/FB25)
OEM part

Subaru

superseded by 26296AG051; smaller front brake than the 6-cyl

Check price on Amazon
Cross-ref Verified fit · 07.26

Akebono

ProACT ceramic; Akebono lists it replacing 26296AG000/AG050 (4-cyl kit) - some catalogs also cross it to the 6-cyl AJ010, so confirm by trim/caliper

Check price

Verified via: Search/subaruparts - 26296AG000 superseded by 26296AG051 (2.5i), AutohausAZ - Akebono ACT1078 replaces 26296AG000, front Subaru

Front brake pads

3.6R 6-cyl (EZ36) - larger front brake, 6-cyl only
OEM part

Subaru

6-cylinder-specific front pad kit w/ hardware & shims (also Tribeca / turbo Forester)

Check price on Amazon

Verified via: SubaruPartsForYou - 26296AJ010 (6 Cyl Only, 2012-2014 Outback/Legacy), Amazon - Subaru 26296AJ010 front pads 2010-2014 Legacy/Tribeca/Outback

Wiper blades

all, 2010-2014 (driver 26 in / passenger 19 in; rear 14 in)
OEM part

Subaru

Check price on Amazon
Cross-ref Verified fit · 07.26

Bosch

size-based; verify hook-arm fit

Check price
Cross-ref Verified fit · 07.26

Rain-X

size-based

Check price

Verified via: Amazon - Genuine Subaru 2010-2014 Outback wiper set SOA591U526/U519/R612, AutoPadre - Subaru Outback wiper sizes (26/19/14)

Drive belts

2.5L EJ253 4-cyl (2010-2012) - TWO separate V-ribbed belts, NOT a single serpentine
OEM part

Subaru

EJ253 runs two belts: alt/PS + a separate A/C belt. A/C belt is a distinct part (not confirmed here). Owners report aftermarket length mismatches on this belt - Continental 4050347 cited as the correct alt/PS size.

Check price on Amazon

Verified via: subaruparts.com - 2003-2014 Subaru alternator belt 809218450, sixityauto - Gates alt/PS belt for 2005-2011 Outback 2.5L H4 (two-belt setup), Subaru Outback Forums - correct PS/alt & A/C belt part numbers thread

Serpentine belt

2.5L FB25 4-cyl (2013-2014) - SINGLE serpentine (belt architecture changed at the EJ->FB switch)
OEM part

Subaru

V-belt 21x4x2196

Check price on Amazon
Cross-ref Verified fit · 07.26

Gates

Micro-V, 6-rib ~87.25 in; confirmed FB25 fit

Check price

Verified via: parts.subaru.com - 2014 Outback V-belt 809221190, sixityauto - Gates Micro-V for 2013-2014 Outback 2.5L H4

Serpentine belt

3.6L EZ36 H6 (all years) - SINGLE serpentine
OEM part

Subaru

6PK1623; drives WP/alt/AC/PS on one belt

Check price on Amazon
Cross-ref Verified fit · 07.26

Gates

Micro-V; cross-references Subaru 809221130 / 6PK1623

Check price

Verified via: parts.subaru.com - Outback serpentine belt 809221130, newparts - Gates K060640 crosses 809221130 / 6PK1623

Battery

all engines, 2010-2014 (not engine-specific)
OEM part

Subaru

OE ~460-490 CCA

Check price on Amazon
Cross-ref Verified fit · 07.26

Duralast

Group 25, ~640 CCA

Check price

Verified via: AutoZone - Subaru Outback battery (Group 25), CarSpecs - Subaru Outback battery size (Group 25, 2010-2019)

Amazon affiliate links — prices unchanged for you. Confirm fitment against your VIN; mid-generation changes exist.

Verdict

Should I buy a 2010–2014 Subaru Outback?

Buy it for the all-weather capability, but choose the engine deliberately. The 3.6R six-cylinder is the no-drama pick: timing chain, conventional automatic, and none of the 2.5L's headline issues. Among the 2.5L cars, 2013–2014 FB25 models can burn oil (a class action got owners an 8-year/100,000-mile warranty extension), while 2010–2012 EJ253 cars can seep head gaskets with age. On any 2.5L CVT car, confirm the transmission shifts cleanly with no low-speed shudder. A well-documented example of either engine is a genuinely useful vehicle; an unchecked one can hand you a four- or five-figure repair.

Best years

3.6R (any year — avoids the 2.5L and CVT issues), 2014

Years to avoid

2013–2014 2.5L (FB25) with no oil-consumption documentation, 2010–2012 2.5L (EJ253) with any sign of coolant loss

Pre-purchase inspection checklist

Printable field version →
  • On 2013–2014 2.5L (FB25) cars: do an oil-level check and ask the seller how often they top off — excessive oil consumption is the signature problem. A Subaru dealer can confirm by VIN whether the oil-consumption warranty extension or any consumption test was performed.
  • On 2010–2012 2.5L (EJ253) cars: check coolant level and look for oil/coolant seepage at the head-gasket mating surfaces and a sweet smell — early head-gasket leaks start small.
  • On any 2.5L CVT car: drive from a stop and at light throttle around 20–40 mph; feel for shudder, vibration, or rpm climbing without speed (CVT/torque-converter symptoms).
  • Listen at each wheel for a cyclic hum/growl that changes with speed — premature wheel-bearing wear is common on this generation.
  • Confirm timing-belt history on 2010–2012 EJ253 cars (belt, not chain — due around 105k miles); a missing record is a budget item.
  • Check the Takata passenger airbag recall status by VIN (2010–2014 Outback was included) and confirm the remedy was completed.
  • Look for blue smoke on a cold start or under hard acceleration on FB25 cars — a tell for oil burning past the rings.
  • Inspect the windshield and sunroof seals; water leaks and a binding sunroof are reported on this generation.
Known faults

Common Subaru Outback problems & repair costs

Excessive oil consumption (2.5L FB25)

$1,500–$6,000
engine severe 2013–2014 (2.5L) ~30k–70k mi

Symptoms: Oil level drops noticeably between changes with no visible leak; low-oil warning light; sometimes blue smoke under load. Owners report needing to add a quart every 1,000–2,000 miles in bad cases.

Fix: Subaru attributed it to defective piston rings. A class-action settlement (Yaeger v. Subaru, 2016) extended the powertrain warranty to 8 years / 100,000 miles and, for cars that failed an oil-consumption test, covered a short-block/piston-ring repair — many out of pocket if past that window. Low end = a documented consumption test plus monitoring; high end = the ring/short-block job.

Sources: CarComplaints — 2013 Outback (oil consumption / FB engine piston rings), Top Class Actions — Subaru oil-burning settlement (Yaeger v. Subaru)

Head-gasket leak (2.5L EJ253)

$1,000–$2,200
engine severe 2010–2012 (2.5L) ~100k+ mi

Symptoms: Slowly dropping coolant, a sweet smell under the hood, oily/coolant residue at the head-to-block seam, occasional overheating. Usually an external seep rather than a sudden failure.

Fix: Replace both head gaskets (the boxer layout means both sides come apart); shops typically resurface heads and refresh the timing belt and water pump while in there. The later FB25 (2013–2014) uses MLS gaskets and does not share this pattern.

Sources: Samarins — 2010–2014 Outback problems & buying guide, CarComplaints — 2010 Outback head-gasket failure

CVT shudder / valve-body fault (TR690 Lineartronic)

$1,500–$6,500
transmission severe 2010–2014 (2.5L CVT) ~60k–120k mi

Symptoms: Shudder or vibration at light throttle and low speed, jerky take-off, hesitation, rpm rising without matching acceleration, or a 'limp' mode.

Fix: Torque-converter shudder sometimes responds to a fluid service or a torque-converter replacement; valve-body/solenoid faults usually mean a valve-body or, in the worst cases, a CVT replacement. Subaru extended CVT warranties on some affected cars — check by VIN. The 3.6R's conventional automatic avoids this.

Sources: Samarins — 2010–2014 Outback (CVT chain/shudder symptoms), CarComplaints — 2013 Outback (transmission failure reports)

Premature wheel-bearing failure

$300–$600
suspension moderate 2010–2014

Symptoms: Cyclic humming or growling that rises with road speed and often changes when you turn; can start surprisingly early for the mileage.

Fix: Replace the worn hub/bearing assembly (per corner). A well-known Subaru-of-this-era weak point; later production revised the bearing design.

Sources: CarProblemZoo — Outback wheel-bearing complaints

Takata passenger airbag inflator (safety recall)

$0–$0
safety safety 2010–2014

Symptoms: No driving symptom — the risk is a passenger-front airbag inflator (non-desiccated PSAN) that can rupture and send fragments into the cabin when it deploys, especially after long heat/humidity exposure.

Fix: Recall remedy is free at any Subaru dealer. Check the VIN at the NHTSA recall lookup and confirm the inflator was replaced before buying.

Sources: NHTSA — Takata recall spotlight, Subaru — Takata airbag recall

Routine ownership is reasonable — AWD parts wear (tires must be matched in tread depth or you'll stress the center diff/CVT), brakes, and the wheel bearings are the everyday costs. The big-ticket risk is concentrated in the 2.5L drivetrain: an FB25 that burns oil or an EJ253 head-gasket job or a tired TR690 CVT can each run into the thousands. The 3.6R sidesteps all three at the cost of a few mpg. Keep all four tires matched, service the CVT fluid on schedule, and budget for one wheel bearing over the life of the car.

Cost calculator

What will this Subaru Outback cost you by a given mileage?

Drag to a mileage. We total the documented problems whose typical onset falls at or before it — the same cost ranges listed above, nothing new invented.

100k mi

$0 estimated repair range

    DIY repairs

    How to fix common Subaru Outback problems (DIY)

    Replace a wheel hub / bearing assembly

    hard 2–3 hrs saves ~$150–$300

    Tools: Floor jack + jack stands, Socket set + large axle-nut socket (32–36mm), Breaker bar, Torque wrench, Bearing press or loaner press kit (if not a bolt-on hub)

    1. Loosen the axle nut with the wheel on the ground, then raise and support the corner and remove the wheel.
    2. Remove the brake caliper and rotor, and disconnect the ABS sensor.
    3. Unbolt the hub/knuckle hardware and separate the assembly; press out the old bearing (or unbolt the hub assembly on bolt-on designs).
    4. Press in / bolt up the new bearing and reassemble the knuckle.
    5. Reinstall rotor, caliper, ABS sensor, and wheel; torque the axle nut and lug nuts to spec.
    6. Test drive and confirm the hum is gone.

    CVT fluid change (drain & fill)

    moderate 1 hr saves ~$120–$250

    Tools: Floor jack + jack stands, Socket set, Fluid pump / funnel, Drain pan

    1. Warm the transmission, then raise and level the car and place a drain pan under the CVT.
    2. Remove the drain plug, drain the old fluid, and measure what came out.
    3. Reinstall the drain plug with a new crush washer.
    4. Refill through the fill port with the exact Subaru CVT fluid spec, matching the volume drained.
    5. Check the level per the procedure for this transmission and confirm no leaks.

    Parts

    Engine & cabin air filter change

    easy 20 min saves ~$50–$100

    Tools: Screwdriver (airbox clips, if needed)

    1. Unclip the engine airbox lid, lift out the old panel filter, and drop in the new one.
    2. Open the glovebox, release the side stops to lower it, and pull the cabin-filter cover.
    3. Slide out the old cabin filter and insert the new one with the airflow arrow pointing the correct way.

    Parts

    Some parts links are affiliate links — we may earn a commission at no cost to you. We only list parts that fit this generation.

    The short version

    The 2010–2014 Subaru Outback is a genuinely useful all-weather wagon, but it’s really three different cars depending on what’s under the hood — and that choice decides how worried you should be.

    The 2013–2014 2.5L (FB25) is the engine behind the oil-consumption story: defective piston rings let some cars burn oil fast enough that a class-action settlement extended their warranty to 8 years / 100,000 miles. The 2010–2012 2.5L (EJ253) is an older design that can seep head gaskets as the miles pile up. And the 3.6R six-cylinder quietly avoids both — plus it skips the CVT in favor of a conventional automatic.

    What that means when you’re shopping

    If you’re set on the four-cylinder, do the engine homework. On a 2013–2014 car, check the oil level and ask how often the owner tops it off; a quart every 1,000–2,000 miles is a red flag. On a 2010–2012 car, watch the coolant and look for seepage at the head-gasket seams.

    On any 2.5L car, the TR690 CVT is the other thing to test. From a stop and at light throttle, feel for shudder or rpm climbing without speed. A clean-shifting one is fine; a shuddering one can become a four- or five-figure repair.

    If you’d rather not think about any of that, the 3.6R is the easy answer. It costs you a few mpg and removes the oil-consumption, head-gasket, and CVT questions in one move.

    Everything else is normal used-Subaru territory: keep all four tires matched in tread depth (the AWD system and CVT don’t like mismatches), expect a wheel bearing at some point, and confirm the Takata passenger-airbag recall was completed by VIN.

    How this file is built: failure modes and cost ranges are compiled from NHTSA recall data, the Subaru oil-consumption class-action settlement, CarComplaints reports, and owner forums, then sanity-checked against shop-floor experience. Cost figures are independent-shop estimates and vary by region. Spot something off? Tell us.

    Myths, checked

    Viral car myths, checked against this car

    Appendix

    Frequently asked questions

    Which Subaru Outback years should I avoid?

    There's no single year to blanket-avoid — it's about the engine. The 2013–2014 2.5L (FB25) cars carry the oil-consumption risk, and the 2010–2012 2.5L (EJ253) cars can develop head-gasket leaks with age. If you want to sidestep both, the 3.6R six-cylinder (any year) is the cleaner buy. Whatever you pick, verify the specific issue for that engine before you commit.

    Is the oil consumption covered by Subaru?

    A class-action settlement (Yaeger v. Subaru, 2016) extended the powertrain warranty on affected 2013–2015 2.5L cars to 8 years / 100,000 miles and reimbursed owners who paid for consumption repairs by the 2016 claim deadline. Most cars are now past that window, so the repair would be on you — which is why the oil-level check matters before buying.

    Should I get the 2.5L or the 3.6R?

    The 3.6R is the lower-drama choice: timing chain, a conventional 5-speed automatic instead of the CVT, and none of the 2.5L's headline problems. The trade-off is a few mpg and a slightly higher fuel bill. The 2.5L is more economical and fine if you verify the engine and CVT, but the six-cylinder removes three of this generation's biggest worries at once.

    Is the CVT reliable on this Outback?

    The TR690 Lineartronic CVT in the 2.5L cars is the weakest link to test. Early units can shudder at light throttle and have valve-body/solenoid faults; a neglected one can need an expensive repair. Confirm clean, shudder-free shifting on a test drive, check whether Subaru extended the CVT warranty on that VIN, and keep the fluid serviced. The 3.6R doesn't use the CVT at all.

    How many miles will a 4th-gen Outback last?

    A well-maintained car — especially a 3.6R or a verified-clean 2.5L — can reach 200,000 miles. The things that cut a Subaru's life short here are an ignored head gasket or oil-consumption problem and a worn CVT, not the chassis. Match the tires, service the fluids, and the rest is ordinary upkeep.

    Cross-reference

    Every Subaru Outback generation

    The full case file run — not just the generation before and after this one.

    Cross-shopped rivals

    Files on what buyers weigh against the Subaru Outback of this era.

    More Subaru case files

    Reviewed CarCaseFile editorial · filed 2026-06-27 · updated 2026-07-02

    Cost figures are independent-shop estimates and vary by region and condition. Always confirm a diagnosis before authorizing repairs.