Subaru Forester SJ (2012 to 2018): buying guide, problems and NZ numbers
The Subaru Forester SJ was built from 2012 to 2018 as an SUV or wagon, with a manual or automatic gearbox, all wheel drive and petrol or diesel power. Chassis codes: SJ5 and SJG. Redline has a curated guide to its 8 most reported weak points, from owner club and specialist sources.
Key facts
- Years
- 2012 to 2018
- Chassis codes
- SJ5, SJG
- Body types
- SUV, Wagon
- Gearboxes
- Manual, Automatic
- Drive
- AWD (all wheel drive)
- Fuel
- Petrol, Diesel
On NZ roads
Counting every one on the NZ register. The first look can take up to 15 seconds.
Known weak points
Curated by Redline from owner club and specialist sources Commonly reported by owners and specialists for the Subaru Forester SJ (2013 to 2018). Not every car has these; check this one.
2.5 oil consumption
Excessive oil use on the 2.5 is reported, put down to mis manufactured engine parts on early cars, with factory revisions from about 2015. Subaru says 1 litre per 2,000 km is normal.
- Where to look
- The dipstick, and the oil top up history
- How to test
- Check the oil level and ask how much it uses. Avoid an engine that rattles at start up, which may have been run low.
- Cost if it needs fixing
- High cost engine parts or a replacement engine
Sources: carsales.com.au (opens in a new tab), autotrader.ca (opens in a new tab)
CVT reverse delay and shudder
Slow engagement of reverse (owners report 4 seconds or more against the normal 1 to 2), hesitation, whine and shudder under load are reported. Subaru fixed it with fresh fluid and a control module reset, but it can come back.
- Where to look
- The CVT, felt from the driver seat, and the CVT fluid records
- How to test
- Select reverse and time it, then accelerate from a stop and feel for hesitation or shudder. Ask for proof of CVT fluid changes at a Subaru dealer.
- Cost if it needs fixing
- High cost CVT repair
Sources: carsales.com.au (opens in a new tab), autotrader.ca (opens in a new tab)
2.0 turbo direct injection carbon
Carbon builds up on the valves of the direct injected 2.0 turbo XT as it ages, and regular fuel hurts performance.
- Where to look
- The 2.0 turbo engine, and the plug and oil change records
- How to test
- Feel for rough running or hesitation and ask for records of early plug and oil changes.
- Cost if it needs fixing
- Medium cost an intake clean
Sources: autotrader.ca (opens in a new tab)
Driveline, steering and suspension noises
Clunks or pops when steering slowly or over bumps, droning or humming, and worn struts and bushes are reported.
- Where to look
- The struts, bushes, driveshafts and wheel bearings
- How to test
- Drive on a rough road with the radio and fan off and listen for clunks and hums. Check for uneven tyre wear.
- Cost if it needs fixing
- Medium cost struts, bushes or bearings
Sources: autotrader.ca (opens in a new tab), carsales.com.au (opens in a new tab)
Electrics, screen and backlighting
Infotainment, sensor and dash display faults are reported, and blown fuses can kill the dash backlighting or radio.
- Where to look
- The touch screen, instrument backlighting and 12 volt outlet fuses
- How to test
- Work through the touch screen and check it responds first time. Check the dash backlighting in shade.
- Cost if it needs fixing
- Low cost fuses or software
Sources: carsales.com.au (opens in a new tab), autotrader.ca (opens in a new tab)
Exhaust corrosion
Rust and corrosion on the exhaust lead to leaks and more noise.
- Where to look
- The exhaust pipes and muffler under the car
- How to test
- Look underneath at the exhaust for rust and listen for blowing or a louder note.
- Cost if it needs fixing
- Medium cost exhaust sections
Sources: carsales.com.au (opens in a new tab)
Underbody damage
Foresters need checking for underbody damage, and bare metal from scrapes should be fixed before purchase.
- Where to look
- The underbody, sills and bumper corners
- How to test
- Look underneath with a torch for scrapes, dents and rust.
- Cost if it needs fixing
- Medium cost depends on what is damaged
Sources: carsales.com.au (opens in a new tab)
Hard starting
Slow starting is often a short lived factory battery, or fixed by a dealer software update.
- Where to look
- The battery, and the dealer record for software updates
- How to test
- Check it starts first time and ask when the battery was replaced.
- Cost if it needs fixing
- Low cost a battery or update
Sources: autotrader.ca (opens in a new tab)
General guidance from owner and specialist sources. Check the specific car with an independent inspection. Researched 4 November 2026.
What the cost bands mean
- Low: a small job. Typically a few hundred dollars or less at an NZ workshop, often a DIY fix.
- Medium: a proper workshop job. Typically several hundred to a couple of thousand dollars.
- High: a major job. Typically several thousand dollars or more, enough to change what the car is worth.
Questions to ask the seller
- Is it the 2.0 or 2.5 petrol, the 2.0 XT turbo or the diesel?
- How much oil does it use, and has any engine work been done for oil use?
- When was the CVT fluid last changed, and by whom?
- Has it been off road?
US recalls
Looking up US recall data.
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