Subaru Outback Problems: Used Buyer's Guide for 2009–2025 Models

The Subaru Outback is a safe, practical all-wheel-drive wagon that CarsGuide rates average for reliability, so the car's history matters. The CVT automatic is the main watch point on pre-2018 cars, with shudder and slow engagement reported. Some 2.5 petrols use oil, the diesel suits highway drivers only, and there's a long recall list to confirm by VIN.

Which Subaru Outback generation are you looking at?

Gen 4 (2009–2014). carsales' used guide covers the fourth generation with a 2.5-litre flat-four petrol (123kW by 2010) and a six-speed manual or CVT, a 3.6-litre flat-six (191kW) with a five-speed automatic in the 3.6R, and a 2.0-litre turbo-diesel with 350Nm. The diesel carsales tested was a manual with a 1,700kg braked towing limit. EyeSight driver assistance came on the 3.6R and Premium from the 2013 model year, and the car earned ANCAP's maximum rating (carsales, buying used 2009–2015).

Gen 5 (2015–2020). The next Outback launched in Australia in late December 2014 and went on sale in January. CarsGuide's launch drive lists a 2.5 petrol (129kW/235Nm), the 3.6 six (191kW/350Nm) and the 2.0 diesel (110kW/350Nm), with a CVT standard and a six-speed manual also offered on the diesel. EyeSight was standard on every petrol but not available on the diesel (CarsGuide, 2015 Outback launch drive). CarsGuide's used guide says Subaru dropped the diesel in late 2020 and that all three engines use timing chains, not belts (CarsGuide, used Outback 2014–2025).

Gen 6 (2021–2025). CarExpert's 2021 launch drive lists one engine, a 2.5 petrol (138kW/245Nm) on 91 RON with a CVT and all-wheel drive, a 2,000kg braked towing limit, 12-month/12,500km servicing and a five-year/unlimited-km warranty (CarExpert, 2021 Outback). CarsGuide says a 2.4-litre turbo-petrol (183kW/350Nm) was added in 2022, CVT only, and that the last of this generation sold in 2025 before a new Outback arrived (CarsGuide).

What are the most common Subaru Outback problems?

These are reported by Australian motoring experts and owners. They're not failure rates.

The CVT automatic

CarsGuide's expert says owners have reported jerky progress at low speed and light throttle, harsh shifting, shudder under acceleration and a delay selecting a gear from Park. The answer adds that catastrophic failures haven't been widely documented, that some cars were improved with a software reflash, and that most problems appear on pre-2018 cars. In the USA, Subaru extended drivetrain cover on about 1.5 million CVT cars to 10 years/160,000km. The answer doesn't say Australia got the same extension (CarsGuide Q&A).

carsales reports the same thing on Gen 4 cars. Reverse should engage in a second or two, but owners reported four seconds or more, plus shudder under acceleration. Subaru's remedy was a CVT fluid change and a control module reboot (carsales). CarsGuide's used guide says lower kilometres are better on CVT cars (CarsGuide).

2.5 petrol: oil use and head gaskets

carsales says the older 2.5's head gasket failures were considered cured by 2009, but it still suggests checking the oil and coolant for contamination. It also says the 2.5 can use up to a litre of oil every 2,000km with no visible fault, and that an engine that rattles on start-up may have been run low (carsales). CarsGuide's used guide says early versions of the later 2.5 had oil consumption issues overseas that were fixed by 2015, and suggests avoiding a 2014-build 2.5 for that reason. It also warns that the engine's small oilways don't tolerate dirty oil or skipped services (CarsGuide).

3.6 six-cylinder

CarsGuide says the 3.6 has no major flaws, but owners report oil leaks from the rocker and cam covers and early failure of timing chain tensioners (CarsGuide).

Diesel

CarsGuide's used guide calls the diesel the model to skip, citing turbo lag and higher maintenance costs. Answering a 2010 diesel owner, its expert says diesel faults aren't common, but short-trip driving can clog the diesel particulate filter, which is expensive to clean or replace (CarsGuide, Outback problems).

Underbody, body and water leaks

carsales says to look underneath for damage that has exposed bare metal and started rusting. It also lists bubbling around the sunroof, clear-coat blistering on horizontal panels, dull headlight reflectors and touchscreens that fail to load or need a firm press on Gen 4 cars (carsales). On a 2009 car with water in the footwells, CarsGuide's expert pointed to door seals, a blocked air-conditioning drain or blocked sunroof drain tubes (CarsGuide).

Gen 6 driver-assist quirks

These are annoyances, not faults. WhichCar's long-term test of a 2021 Touring found the lane-centring steering tended to hug one side of the lane, the stop-start system has to be switched off at each start if you don't like it, and there didn't seem to be a way to turn down a loud warning chime (WhichCar). An EyeSight braking recall and a post-collision braking recall on 2021 model year cars are in the table below.

Takata airbags

CarsGuide's advice on a 2010 Outback includes confirming the Takata airbag recall has been done (CarsGuide). Subaru has a registration and VIN lookup for it (Subaru Australia). Our Takata guide explains why it still matters.

What Subaru Outback recalls should I check?

We read these on the federal register at vehiclerecalls.gov.au. They're current as at November 2026. New recalls are added often, so check the VIN at vehiclerecalls.gov.au or with a Subaru dealer.

What this means for you: on a 2015–2018 car, confirm the park brake recall. On a 2021 car, confirm both braking software recalls and the CVT switch.

What our inspectors check on a Subaru Outback

This is what we look at, and which package includes it. It's a list of checks, not a claim that the car has these faults. Every package includes the 150+ Point Checklist.

1. 1.OBD-II scan of stored, pending and live fault codes, printed into your report. (All packages)
2. 2.Engine bay and fluid leak check, plus battery, starter and alternator tests. (All packages)
3. 3.Brake pads and tyre tread measured. (All packages)
4. 4.Full mechanical inspection. Engine, gearbox, cooling, belts, mounts, exhaust, driveline and steering, with oil and coolant level and condition recorded. (Comprehensive and Elite)
5. 5.CVT behaviour on the road test. Engagement from Park into Drive and Reverse, low-speed smoothness and shudder under load. (Comprehensive and Elite)
6. 6.Underbody photos, with the undertray removed where fitted, safe and permitted. We look for scrapes, bare metal, rust and leaks. (Comprehensive and Elite)
7. 7.Suspension bushes and mounts checked for cracking and play. (Comprehensive and Elite)
8. 8.Full electrical test and interior electronics, including the touchscreen, headlights, reverse camera, park brake and sunroof. (Comprehensive and Elite)
9. 9.Exterior paint and body repair indicators, including clear-coat condition. (Comprehensive and Elite.) Elite adds a paint thickness gauge on every panel. Essential has no paint check.
10. 10.PPSR check. (Comprehensive and Elite. Essential doesn't include one)
11. 11.Senior inspector and a cold start when the seller leaves the engine cold. (Elite only)
12. 12.History deep-dive covering odometer, owners, stolen or written-off status and recalls, plus a valuation. (Elite only)

Road tests are 3–5km on Essential, 6–10km on Comprehensive and 10–12km on Elite.

How should you test-drive a used Outback?

• Ask for the engine cold. Listen for rattle in the first few seconds.
• Check the oil and coolant before you start, if the seller allows.
• Select Reverse, then Drive, and count how long each takes to engage.
• Creep in traffic on light throttle. Feel for jerks or shudder.
• Accelerate up a hill and feel for shudder under load.
• Lift the mats and feel the carpet for damp.
• After the drive, look under the car for drips and scrapes.

What paperwork and PPSR checks do you need?

• A PPSR check (ppsr.gov.au) for finance owing, write-off and stolen status. It's in Comprehensive and Elite. See PPSR check NSW.
• Full service history with invoices. CarsGuide calls it essential on this car.
• CVT work. Ask for any record of a fluid change or software update.
• Recall completion by VIN, using the table above, plus Takata on older cars.
• Kilometres. CarsGuide says cars over 250,000km are a risk the price should reflect.

How do you negotiate on a used Outback?

• A slow or shuddering CVT is your strongest lever, or your reason to walk away.
• Low oil or a start-up rattle on a 2.5 needs an explanation before you talk price.
• Underbody scrapes and rust are money off.
• An open recall should be closed before you pay.

Our Elite inspector can negotiate on the spot, using the findings. See our Subaru inspection page.

Is a used Subaru Outback a good buy? Our verdict

Yes, with a complete service history and a CVT that behaves. CarsGuide calls it a safe, convenient way to get around, with gravel-road ability from its all-wheel drive, and says its concerns are high-kilometre cars and any car without full history (CarsGuide).

• Gen 4 2.5 CVT: buy on CVT engagement and oil level.
• Gen 4 and Gen 5 3.6: the smooth one. Look for oil leaks.
• Gen 5 2.5: CarsGuide suggests avoiding 2014 builds.
• Diesel: only for highway drivers, and only with full history.
• Gen 6 2.5: confirm the 2021 recalls.
• Gen 6 turbo: the quick one. Go Elite.

Subaru Outback FAQs

What are the most common Subaru Outback problems?

Australian experts report CVT shudder, jerkiness and slow gear engagement on pre-2018 cars, oil use on some 2.5 petrols, oil leaks on the 3.6, clogged particulate filters on short-trip diesels and underbody damage. Recalls cover the park brake, EyeSight braking and fuel pumps. These are reported issues, not failure rates.

Is the Subaru Outback CVT reliable?

CarsGuide's expert says outright failures haven't been widely documented, but owners report jerkiness, shudder and delayed engagement, mostly on pre-2018 cars. Some were improved with a fluid change or software update. On a used Outback, time the shift into Reverse and Drive, and ask for CVT service records.

Does the Subaru Outback have head gasket problems?

carsales says head gasket failures on the 2.5 were considered cured by 2009, though it still suggests checking the oil and coolant for contamination on older cars. CarsGuide's used guide also describes the earlier head gasket problem as solved. Oil use is the more current thing to check.

Which Subaru Outback years should I avoid?

CarsGuide's used guide suggests avoiding 2.5 petrols built in 2014, because an oil-burning issue wasn't fixed until 2015, and it calls the diesel the model to skip. Its expert also says most CVT complaints involve pre-2018 cars. Condition and history still matter more than the year.

Has the Subaru Outback been recalled in Australia?

Yes. As at November 2026 the register lists an electronic park brake recall covering 2015–2018 cars, EyeSight and post-collision braking software recalls on 2021 cars, a CVT switch recall, a fuel pump recall on 2018–2019 3.6 models and others. Check the VIN at vehiclerecalls.gov.au before you pay.

How much does a Subaru Outback pre-purchase inspection cost?

Essential is $199, Comprehensive is $329 with PPSR and the report on site, and Elite Buyers' Protection is $449. Ute, Van & Light Truck ($329, up to 4.5 t GVM) is for utes, vans and light trucks. For an Outback we recommend Comprehensive as the minimum and Elite for higher-value cars.

Aussie Auto Care Pty Ltd · ABN 19 701 853 090 · 02 8320 1246 · Mobile pre-purchase inspections across Greater Sydney, Newcastle/Maitland, the Central Coast, the Blue Mountains and Wollongong/Illawarra.

Sources

carsales, Buying a used Subaru Outback (2009–2015)

CarsGuide, Used Subaru Outback 2014–2025

CarsGuide, Subaru Outback 2015 launch drive

CarsGuide, Subaru Outback problems (owner Q&A)

CarsGuide Q&A, CVT problems in older Outbacks

CarExpert, 2021 Subaru Outback launch drive

WhichCar, 2021 Subaru Outback Touring long-term test

Subaru Australia, Takata recall lookup

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Electronic park brake recall (campaign SRT324)

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REC-001218

REC-001697

REC-001226

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PPSR