Parts for your 2010 Subaru Impreza-Wheel bearings

2010 Subaru Impreza wheel bearings

Wheel bearings are absolutely fitted to the 2010 Subaru Impreza. Technical sources including the Subaru Service Manual for the GE/GH chassis (Front Axle – Hub Unit Bearing, Rear Axle – Hub Unit Bearing) and Subaru’s Technical Information System confirm the Impreza uses sealed, bolt-on hub unit bearings at both ends, with the ABS encoder integrated on models equipped with ABS. OEM parts catalogues for the 2010 model year list complete hub-and-bearing assemblies, rather than serviceable tapered rollers, so these units are replaced as an assembly when worn.

On this Impreza, the wheel bearings let each wheel spin smoothly while carrying the car’s weight and keeping the hub precisely located. They also maintain correct ABS signal and help protect against water and dust. Because they’re sealed, there’s no greasing or periodic adjustment like the old-school setups—maintenance is mainly inspection and timely replacement when symptoms show up.

For everyday servicing, a good workshop will road test for a steady humming or growl that rises with speed and changes in corners, check for play by rocking the wheel at 12 and 6 o’clock, and spin the wheel listening for roughness. They’ll also look for ABS warning lights that can stem from a damaged encoder ring in the bearing. Typical life can be 100,000–200,000 km, but rough roads, big potholes, water crossings or oversized wheels can pull that forward.

When replacement time comes, the hub unit is unbolted from the knuckle after removing the brake and axle hardware. The axle nut must be torqued to factory spec (per Subaru service data, typically in the 240–260 Nm range, depending on variant) and a new nut used. It’s worth choosing quality OEM-equivalent assemblies, cleaning the hub face to avoid runout, and protecting the ABS sensor during the job. An alignment check is sensible afterwards if the knuckle bolts were disturbed. It’s a straightforward task for a pro with the right kit, DIYers should have a torque wrench, breaker bar and penetrating oil on hand, and follow workshop procedures.

• Common signs: humming/growling at speed, play at the wheel, ABS light, uneven tyre wear, heat at the hub.
• Tips: avoid kerb strikes, keep tyres balanced, and address any noise early to prevent collateral damage.

FAQs

How long do wheel bearings last on a 2010 Subaru Impreza?
With normal driving they often run 100,000–200,000 km. Rough roads, big impacts, or frequent water exposure can shorten that. Regular checks during services help catch wear early.

Can a noisy wheel bearing damage other parts?
Yes. If left to fail, heat and looseness can affect the hub, ABS sensor, brake components, and even the driveshaft splines. Replacing the bearing promptly keeps costs down.

Do these bearings need greasing or adjustment?
No. The 2010 Impreza uses sealed hub units. There’s no periodic greasing—just inspection and replacement when they develop noise or play.