Parts for your 2020 Mitsubishi Asx-Wheel hubs

2020 Mitsubishi ASX wheel hubs — purpose, care and when to replace

Wheel hubs are absolutely fitted and relevant on the 2020 Mitsubishi ASX. Technical documentation such as the Mitsubishi Motors Service Manual for the ASX/Outlander Sport/RVR (GA/GS platform, including 2020MY) and the Mitsubishi ASA genuine parts catalogue identify front and rear wheel hub and bearing arrangements, with integrated wheel speed encoder (ABS tone ring) components. These sources confirm the ASX uses hub units to secure the wheels, support the bearings and transmit drive (front) while feeding accurate ABS/ASC signals.

On this model, the wheel hub is the central mounting point for the wheel and brake rotor, housing a sealed bearing that lets the wheel rotate smoothly with minimal play. At the front, the hub and bearing support corner loads, keep alignment true, and transfer torque from the CV joint to the wheel. Front and rear hub assemblies also provide the magnetic encoder surface for the ABS/ASC wheel speed sensor, so a healthy hub helps maintain stable braking and traction control performance.

The hub bearings are sealed-for-life units, so there’s no scheduled lubrication. As part of regular servicing, workshops typically check for noise, heat, free play and sensor integrity. A quick on-hoist spin test and a rock test at the 12-and-6 o’clock positions can catch wear early. Technicians should also note any ABS warnings during a scan, as an encoder or sensor issue can be linked to hub condition.

• Common signs a hub is due: humming or growling that changes with speed or when cornering, ABS/ASC lights, uneven tyre wear, vibration through the body, heat at the hub after a drive, or measurable wheel play.

When replacement is required, best practice is to renew the hub/bearing assembly and related single-use hardware. The ASX’s front bearing is a press-fit in the steering knuckle with the hub pressed into the bearing, so proper support tools and a press are essential to avoid damaging the new unit or the knuckle. Rear hub/bearing units are typically bolt-on assemblies and are replaced as a complete unit. Follow Mitsubishi torque specs for axle nuts and wheel nuts, ensure the encoder faces the sensor, and finish with a road test and a scan to clear any stored ABS faults.

• Longevity tips: avoid striking kerbs, keep tyres balanced and aligned, tighten wheels to spec, and wash away mud or salt that can sit around the hub.

Popular questions

How long do wheel hubs last on a 2020 Mitsubishi ASX?

Under typical Australian and New Zealand conditions, many hub bearings run well beyond 120,000–200,000 kilometres. Lifespan depends on road quality, wheel impacts, tyre condition, and whether water or dust ingress has occurred. Regular inspections during scheduled services help catch issues before they become noisy or unsafe.

Can just the bearing be replaced, or is the whole hub needed on the ASX?

At the front, the bearing is pressed into the steering knuckle and the hub is pressed into the bearing, so workshops commonly renew the bearing and hub together to ensure fit and longevity. At the rear, the ASX generally uses a sealed, bolt-on hub/bearing assembly that’s replaced as a complete unit.

What are the warning signs of a failing wheel hub on an ASX?

Typical symptoms include a speed-related hum or growl, wheel play when rocked at 12-and-6, ABS/ASC warning lights, vibration, and heat around the hub after driving. Noise that changes when cornering is a classic indicator. If any of these appear, a prompt inspection is wise.