Parts for your 2021 Mitsubishi Asx-Coil springs

2021 Mitsubishi ASX coil springs — what they do and when to replace them

Coil springs are fitted to the 2021 Mitsubishi ASX. Technical sources confirm this: the Mitsubishi ASX/RVR/Outlander Sport Service Manual (GA2W/GA3W, 2010–2021) details a MacPherson strut front suspension with coil springs and a rear multi‑link setup with coil springs. Mitsubishi Motors Australia’s MY21 ASX specification sheets list the same suspension layout, and industry data tools such as Autodata/Haynes Pro mirror these specs. So, coil springs are absolutely relevant to the 2021 ASX.

On the ASX, the coil springs carry the vehicle’s weight, set the ride height and work with the shock absorbers to soak up bumps. Up front, the coil wraps around the strut to keep things compact, at the rear, the coils team with the multi‑link arms to balance comfort and control. Good springs mean a level stance, predictable steering and even tyre wear, whether it’s the city commute or a run down to the bach.

They’re tough bits of kit and don’t have a fixed replacement interval, but they should be checked at each service. A technician will look for sag, cracks, rust pitting and chipped powder coat, and measure ride height side‑to‑side. If a spring is weak or broken, the ASX can feel floaty, bottom out on speed humps or sit low on one corner. Because a front spring change disturbs the strut, a wheel alignment is recommended afterwards.

When replacement is needed, it’s best practice to fit springs in axle pairs (both fronts or both rears) to keep the car balanced. Quality OEM‑equivalent springs are the go, and it’s smart to renew related hardware like strut top mounts, bearings, insulators and bump stops at the same time. A proper spring compressor and care are essential—stored energy in a coil spring can be dangerous, so this job’s one for a qualified workshop.

To help springs last, avoid overloading beyond the ASX’s GVM or towball download, rinse the underbody after beach runs or snowy, salted roads, and keep an ear out for twangs or clunks on full lock. Spot any of the tell‑tales below? Time for an inspection.

• Uneven ride height or rear sag with light loads
• Bottoming out, excessive bouncing or nose‑dive
• Clunks, twangs or binding noises while turning
• Visible corrosion, chipped coating or a snapped coil end
• New uneven tyre wear or a steering pull after bumps

FAQ

Does the 2021 Mitsubishi ASX have coil springs front and rear?
Yes. The 2021 ASX uses MacPherson struts with coil springs at the front and a multi‑link rear suspension with coil springs. This setup gives a tidy mix of comfort and control for everyday driving.

When should ASX coil springs be replaced?
There’s no set kilometre limit. Replace them when there’s sag, damage, corrosion, a broken coil, or if ride height is out of spec. If a front spring is changed, book a wheel alignment. Always replace springs in pairs on the same axle.

Can coil springs be upgraded for towing or a firmer stance?
Yes, heavier‑rate or load‑assisting coils can help if the ASX often carries gear or has a constant towball load. Stick with reputable brands matched to the car, and consider pairing with appropriately valved shocks. Keep within legal ride‑height rules in Australia and New Zealand.