Parts for your 2017 Toyota Mark x-Coil springs

2017 Toyota Mark X coil-springs — fitment, purpose and service tips

Coil springs are absolutely used on the 2017 Toyota Mark X (GRX130/GRX133). Technical sources confirm it: Toyota’s New Car Features/Repair Manual for the GRX130 series details a front double-wishbone and rear multi-link suspension layout employing steel coil springs with the dampers, and Toyota’s Electronic Parts Catalogue lists front and rear coil spring part numbers for these models. Toyota Global communications for the 2016–2019 Mark X update also describe the same suspension architecture, which conventionally uses coil springs rather than air or torsion systems.

On this sporty rear-wheel-drive sedan, the coil springs carry the vehicle’s weight, set ride height and work with the shocks to keep tyres planted over Aussie and Kiwi roads. They help the Mark X strike that nice balance between comfort on the commute and confident cornering when the road opens up. Because they’re passive steel springs, there’s no scheduled replacement interval — but they do fatigue, corrode and can break, especially with high kilometres, coastal air, or heavy impacts.

During routine servicing, it’s smart to give the coils a proper look. Check for chipped paint and rust pitting, cracked ends, or a broken coil. Watch for a droopy corner, uneven ride height, clunks over bumps, or choppy tyre wear — all classic signs the springs are tired. A quick bounce test that shows excessive rebound usually points to worn shocks, but springs and shocks age together, so assess both. Don’t forget the rubber isolators, top mounts and bump stops, perished or flattened rubbers can cause squeaks and knocks even if the coils are fine.

If replacement’s on the cards, always do them in axle pairs to keep the car level and predictable. Match the correct spring rate and colour code for the exact Mark X grade and options, and stick with quality OE-spec or well-proven aftermarket brands. A wheel alignment is a must after any spring or damper work. If the odometer’s north of 100,000 km, it’s worth fitting new shocks while you’re in there to save labour down the track. Technicians should compress springs with the right tools and torque suspension bolts at normal ride height to avoid bush preload. Lowering springs? Make sure the drop stays legal for WOF/rego, confirm bump stop clearance, and let insurance and alignment settings keep pace with the new stance.

• Inspect every service or 20,000 km for corrosion, cracks and sag
• Replace in pairs, align afterwards
• Check mounts, isolators and shocks at the same time

Does the 2017 Toyota Mark X have coil springs or air suspension?
The 2017 Mark X uses conventional steel coil springs front and rear with double-wishbone (front) and multi-link (rear) arms. There’s no factory air suspension option for this model, including sports variants.

When should the coil springs be replaced on a 2017 Mark X?
There’s no fixed kilometre interval. Replace if a spring is cracked or broken, ride height has sagged, corrosion is severe, or handling and tyre wear point to fatigue. It’s best practice to replace springs in axle pairs and align the vehicle afterwards.

Can you lower a 2017 Mark X with aftermarket springs?
Yes, quality lowering springs are available. Keep the drop within local compliance rules, pair them with suitable dampers if needed, and get a proper alignment. Expect firmer ride quality and reduced bump travel, check insurance and certification requirements where applicable.