Parts for your 2018 Subaru Forester-Coil springs

2018 Subaru Forester coil springs — what they do and when to replace them

Coil springs are absolutely used on the 2018 Subaru Forester. Technical sources including the Subaru Forester SJ (MY18) Owner’s Manual, the SJ-series Factory Service Manual (Front and Rear Suspension chapters), and Subaru Australia/NZ specification sheets confirm the Forester runs MacPherson struts with coil springs up front and an independent double-wishbone rear suspension with coil springs. So if a 2018 Forester is on the hoist, there’ll be a coil spring at each corner doing a fair chunk of the suspension’s heavy lifting.

On this model, the coil springs support vehicle weight, set ride height, and work with the struts/shocks to soak up bumps while keeping the tyres planted. That helps stability, braking performance, and comfort on corrugated country roads or around town. They also influence how the Forester handles loads like bikes, camping gear, or a full boot. Because the springs are constantly cycling, they can fatigue over big kilometres or harsh use, even though they don’t have a fixed replacement interval.

Signs a 2018 Forester might need new coil springs include a droopy ride height on one side, clunks over speed humps, uneven tyre wear, or a floaty feel. Visible cracks, chipped coating and heavy rust—especially on coastal cars—are red flags. Any broken pigtail ends or coils mean immediate replacement. Best practice is to replace springs in axle pairs (both fronts or both rears) to keep the car sitting level and steering true.

• Inspect springs at each regular service (10,000–15,000 km), or after off-road trips.
• Look for corrosion, cracked paint, broken coils, or shiny “coil-bash” marks.
• Consider matching dampers if mileage is high—fresh springs with tired shocks won’t feel right.
• If fitting accessories (towbar, cargo systems, bull bar), choose the correct spring rate.
• Always get a wheel alignment after spring or strut work.

Because coil springs store a lot of energy, compressed-spring work is not a DIY job without the right gear. A qualified tech will also check top mounts, bearings, bump stops and dust boots while they’re in there, and torque everything to factory specs. After installation, the springs may settle slightly—recheck ride height and alignment within a few hundred kilometres for the best result.

Popular questions about 2018 Subaru Forester coil springs

Do 2018 Foresters use coil springs front and rear?
Yes. The SJ-series Forester (MY18) uses MacPherson struts with coil springs at the front and an independent double-wishbone rear with coil springs. This layout is listed in Subaru’s owner and service manuals and in local spec sheets for Australia and New Zealand.

How often should coil springs be replaced on a 2018 Forester?
There’s no set interval. Have them inspected at regular services and replace if there’s sagging, damage, corrosion or a broken coil. Many last well beyond 150,000 km, but rough roads, towing or heavy loads can bring replacement forward. Always replace in pairs per axle and align the vehicle afterwards.

Can upgraded springs help with towing or ride height?
They can. Load-rated or slightly raised springs can better support gear or light towing. Match them with suitable dampers and ensure compliance with local ADR/NZTA rules and insurer requirements. After any height change, get alignment and headlight aim checked.