Parts for your 2015 Subaru Impreza-Coil springs

2015 Subaru Impreza Coil Springs

Coil springs are absolutely fitted to the 2015 Subaru Impreza. Technical sources including the Subaru Service Manual for the GJ/GP series (Suspension section), the 2015 Impreza owner’s manual (chassis specifications), official sales specification sheets noting MacPherson strut front and double-wishbone rear suspension, and Subaru genuine parts catalogues listing front and rear coil-spring part numbers, all confirm their use on this model.

On the Impreza, the front uses MacPherson struts with coil springs, while the rear uses a double-wishbone setup with separate shocks and coil springs. The springs carry the vehicle’s weight, set ride height, and work with the dampers to absorb bumps and keep the tyres planted. That steady tyre contact helps the Impreza’s Symmetrical AWD do its best work, improving grip, braking stability, and steering feel on everything from motorways to corrugated rural roads.

There’s no fixed replacement interval for coil springs, they’re serviced on condition. It’s smart to inspect them at least yearly or every 20,000 km, and any time there’s a heavy kerb strike or the car starts riding lower on one corner. Red flags include a sagging stance, a pronounced lean when parked, clunks over bumps, paint flaking off the coils, visible cracks at the pigtail ends, or a harsh, crashy ride. Surface rust is common with age, but deep corrosion, especially where the spring seats, is cause for replacement.

When replacement’s due, a workshop should fit springs in axle pairs to keep handling balanced. Use the correct spring rate and height for the exact trim (VIN helps) because Subaru tunes vary by body style, transmission and market. It’s good practice to renew strut mounts, isolators, bump stops and dust boots at the same time, and to torque suspension bushes at normal ride height. Book a wheel alignment straight after—fresh springs can shift camber and toe. If regularly hauling gear or tackling rough tracks, heavy‑duty options can help, but avoid mismatched lowering springs without appropriate damping and alignment, as that can upset ride and tyre wear.

Coil springs are under serious tension. A quality spring compressor and proper procedure are essential, if in doubt, leave it to a pro for safety and a tidy result.

• Inspect springs annually or every 20,000 km.
• Replace in pairs, use OEM-equivalent rates, and align afterwards.
• Check mounts, insulators and bump stops during any spring or strut job.

FAQs

How do you know if the coil springs on a 2015 Impreza are worn or broken?
Tell-tales include a lopsided stance, bottoming out over speed humps, clunks or twangs on bumps, uneven tyre wear, or a harsh, bouncy ride. A visual check may show chipped paint, deep rust or a cracked coil end. Any broken coil warrants immediate replacement.

Should coil springs be replaced with the shocks/struts on this model?
Not always, but it’s often smart. Springs fatigue over time and can sag, and fresh dampers paired with tired springs can leave ride height and handling off. If mileage is high or there are signs of corrosion or sag, replace springs with the dampers and renew mounts and rubbers together.

Do new coil springs require a wheel alignment on the Impreza?
Yes. Changing springs or struts can alter camber and toe. A post‑fitment alignment helps the car track straight, preserves tyres and ensures the AWD and stability systems behave as intended.