2015 Subaru Impreza Problems: All 6 Known Failures | Milo
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2015 Subaru Impreza problems: every known failure

All 6 documented failure points for this exact year — what goes wrong, when, what it costs, and how to spot it on a test drive. Free, from Milo's research on this model.

6known failure points
79NHTSA owner complaints
2safety recalls
$6,000worst-case single repair

A cheap, honest, all-weather commuter — as long as you dodge the oil-consumption FB20 and check the head gaskets religiously.

Every documented failure, earliest first

Ordered by the mileage the problem typically appears. VERY HIGH confidence means it's tied to a documented NHTSA recall, and 2 of these are rated Critical.

0k–30k mi● Watch$150–$400MODERATE
Front passenger seatbelt buckle/pretensioner sticking (per NHTSA complaints)
How to catch it: Test all seatbelt buckles for smooth latch/release during PPI; if still under warranty get it documented now.
Source: multi-source pattern (AI synthesis)
40k–70k mi● Plan$800–$1,800MODERATE
Head gasket seepage (external coolant/oil weep, common on FB20 but less catastrophic than old EJ25)
How to catch it: Check coolant reservoir color and level monthly and have a compression/coolant system pressure test done at 60k.
Source: multi-source pattern (AI synthesis)
40k–100k mi● Critical$0–$6,000MODERATE
Excessive oil consumption from FB20 piston rings, sometimes escalating to rod knock
How to catch it: Do a documented oil consumption test every 1000 miles for the first few months of ownership; if it's burning more than a quart per 1200 miles, push for Subaru's extended warranty coverage (many were covered under a customer service campaign).
Source: multi-source pattern (AI synthesis)
50k–90k mi● Plan$400–$900MODERATE
Rear wheel bearing failure (multiple owner reports of repeat failures)
How to catch it: Listen for a rhythmic hum that increases with speed on turns; replace bearing early rather than waiting for total failure and hub damage.
Source: multi-source pattern (AI synthesis)
60k–100k mi● Watch$300–$700MODERATE
Valve/oil control solenoid (AVCS) sludge-related fault codes (P0018/P0016 style)
How to catch it: Stick to 3,750-5,000 mile oil changes with a quality full synthetic to prevent sludge buildup around the AVCS solenoids.
Source: multi-source pattern (AI synthesis)
80k–120k mi● Critical$3,500–$5,500MODERATE
CVT (Lineartronic) chain wear/failure in high-mile, hard-driven cars
How to catch it: Change CVT fluid every 30k miles with Subaru-spec HP fluid — this is the single biggest lever against premature CVT failure.
Source: multi-source pattern (AI synthesis)

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Findings blend documented NHTSA recalls and complaints with patterns synthesized from owner communities. Confidence is labeled on every item; an inference is never presented as documented fact. Always inspect the specific vehicle and verify open recalls by VIN before buying.

Full 2015 Subaru Impreza overview · All researched vehicles · milomotormole.com