Parts for your 2020 Mitsubishi Asx-Steering bushes

2020 Mitsubishi ASX steering bushes — purpose, service tips, and when to replace

Based on technical documentation, steering bushes are indeed used on the 2020 Mitsubishi ASX. The factory workshop literature for ASX/RVR (Group 37: Steering) depicts the electric rack-and-pinion assembly mounted to the front crossmember via insulator bushes, and the Mitsubishi ASA/parts catalogue lists those as steering gear mounting insulators. Aftermarket catalogues in Australia and New Zealand also offer replacement rack-mount bushes for ASX models from 2010 onward. So, steering-bushes are relevant to this vehicle.

On the 2020 ASX, the steering bushes (also called rack-mount or steering gear mounting bushes) sit between the steering rack and the subframe. Their job is to isolate vibration, keep the rack precisely located, and stop knocks transferring through the wheel. They help the ASX feel steady on-centre while cutting down on road harshness — exactly what most owners want for commuting and weekend runs.

Over time, rubber bushes can crack, compress, or soften from age, heat, and oil contamination. When that happens the rack can shift slightly under load, which shows up as vague steering, a clunk over potholes, or a subtle “kick” in the wheel on rough roads. If left too long, it can accelerate tyre wear and make the ASX feel a bit wander-y at highway speeds.

As part of routine servicing, a technician should visually check the steering bushes for splitting, oil-soak, and excessive movement while an assistant rocks the steering wheel. Any play where the rack meets the subframe is a red flag. On vehicles used on corrugated roads or that rack up big kilometres, these checks are especially worthwhile.

When replacement’s due, quality matters. OE-style rubber keeps the comfy factory feel, while polyurethane can sharpen steering response with a slight uptick in noise and vibration — a fair trade for some owners. It’s smart to replace bushes as a set, torque the fasteners at normal ride height, and perform a wheel alignment afterwards. If the rack itself shows internal play, a complete steering rack may be the better fix. Some ASX variants allow the bushes to be serviced separately, others might bundle them with the rack — the parts interpreter can confirm by VIN.

• Typical signs: clunks over bumps, imprecise on-centre feel, shimmy under braking, uneven tyre wear.
• Inspection interval: every service, or at least every 15,000 km/12 months in local conditions.
• After replacement: check alignment and recalibrate steering angle if required.

Do 2020 Mitsubishi ASX models have steering rack bushes?
Yes. The ASX uses an electric rack-and-pinion unit mounted to the subframe through insulator bushes. These parts keep the rack located and damp vibrations. They’re shown in Mitsubishi’s steering section of the workshop manual and listed in the parts catalogue as steering gear mounting insulators.

How long do steering bushes last on an ASX?
There’s no fixed interval, but many last 80,000–150,000 km depending on roads, heat, and contamination. With regular servicing, any deterioration is usually picked up before it affects safety or tyres. Rough roads or oil leaks nearby can shorten their life.

Can the bushes be replaced without changing the whole rack?
Often, yes — many 2020 ASX variants allow separate bush replacement. However, if the rack has internal play or damage, a complete rack assembly can be the more reliable route. Parts availability and the correct approach can vary by VIN and market, so it’s best to check with a parts specialist.