Parts for your 2020 Mitsubishi Asx-Wheel bearings

2020 Mitsubishi ASX wheel-bearings: what they do and when to replace

Technical sources confirm wheel-bearings are fitted to the 2020 Mitsubishi ASX: the Mitsubishi Motors service manual for ASX/RVR (2019–2021) details front and rear wheel hub and bearing assemblies, the Mitsubishi ASA electronic parts catalogue lists sealed hub units for GA/GC-series ASX, and aftermarket catalogues from SKF and NTN-SNR specify direct-fit hub-bearing assemblies for this model. So wheel-bearings are absolutely relevant on the 2020 ASX.

On the 2020 ASX, each wheel runs on a sealed hub-bearing assembly. Its job is simple but vital: let the wheel spin smoothly while carrying the car’s weight, coping with bumps, corner loads, and braking forces, and feeding precise signals to the ABS/ASC via the built‑in magnetic encoder. Being a sealed unit, it’s pre‑greased for life and non‑serviceable, when it wears, the whole hub is replaced. Good bearings keep tyre noise low, steering crisp, and braking consistent. When they start to go, owners often notice a humming that rises with road speed, a gritty feel when the wheel is spun off the ground, or the ABS light flickering because the encoder signal degrades. Left alone, a failed bearing can overheat, damage the hub or knuckle, and chew out tyres.

Servicing the ASX doesn’t include greasing these bearings, but it definitely includes checking them. At each service, a quick road test for rumble, then raising the vehicle and rotating each wheel by hand, will pick up issues early. The technician should feel for roughness, listen for growl, and check for play by holding the tyre at 12 and 6 o’clock and rocking gently. Any discernible movement, or noise that changes when the steering is lightly loaded left versus right on a smooth road, points to a hub on the way out. Because the encoder is integral, a marginal bearing can also trigger intermittent ABS or stability control warnings even before it gets loud.

Replacement notes for the 2020 ASX:

• Hubs are bolt-on units front and rear, replace the assembly, not just the bearing.
• Always follow the workshop manual for hub/axle nut torque and the four mounting bolts, re-use of staked axle nuts is not advised.
• Clean the knuckle face and ABS sensor tip, avoid hammering through the hub, as damaging the encoder will set ABS faults.
• After replacement, road test, clear any stored ABS codes, and re-check wheel alignment and tyre wear.

How long do they last? On Australian and New Zealand roads, well-cared-for ASX hubs commonly run 120,000–200,000 km. Rough surfaces, big potholes, oversized wheels or pressure washers can shorten life.

Popular questions about 2020 Mitsubishi ASX wheel-bearings

What are the signs my 2020 ASX has a bad wheel bearing?

Typical signs include a steady hum or growl that changes with speed, a noise that gets louder when gently steering one way and quieter the other, steering that feels vague, heat at the wheel hub, uneven tyre wear, or an ABS/ASC warning due to a weak encoder signal.

If the wheel is raised, roughness when spinning by hand or noticeable play at 12 and 6 o’clock is a giveaway that the hub assembly is on the way out.

Are the wheel-bearings serviceable, or are they a complete hub on the ASX?

They’re sealed, pre-greased hub-bearing units front and rear. There’s no periodic greasing or adjustment, when worn or noisy, the complete hub assembly is replaced. This design keeps contaminants out and simplifies the job.

Most workshops treat it as a straight swap: remove the caliper and rotor, undo the axle nut and hub bolts, then fit the new unit and torque to spec.

Is it safe to keep driving with a noisy wheel bearing, and how long does replacement take?

It’s not a great idea. A failing bearing can overheat, affect braking and ABS behaviour, and in the worst case seize or let the wheel wobble. Best to book it promptly.

Replacement typically takes about 1–2 hours per corner in a well-equipped workshop. Expect an alignment check afterwards if any suspension bolts were disturbed.