Wheel bearing · 2026
Audi A4 wheel bearing cost
A wheel bearing replacement on a Audi A4 typically costs £106–£356 per wheel fitted at a UK independent garage. The A4's bearing design changed mid-range: the B7 (2005–08) uses press-in bearings needing a press or puller, while the B8 (2008–15) and B9 (2015 on) switched to bolt-on hub units. The generation you own decides the labour bill.
Front vs rear: what's the Audi A4's bearing design?
The design decides the bill. A bolt-on hub unit is a dearer part but a quick fit; a press-in bearing is cheap but needs dismantling and a hydraulic press. Here's how the A4 is built:
| Position | Design | What that means |
|---|---|---|
Front | Bolt-on hub unit | B7 (2005–08): bearing pressed into the hub carrier — a press or puller/separator job, with pre-assembled hub-and-bearing kits sold to avoid it. B8 (2008–15) and B9 (2015 on): bolt-on hub unit fixed through the back of the knuckle. |
Rear | Bolt-on hub unit | Mirrors the front: B7 rear bearings are press-in, while the B8 and B9 use bolt-on sealed hub units — the same hub-unit kit is sold for front or rear on the B8 platform. |
Audi A4 wheel bearing replacement cost
A single wheel bearing on a Audi A4 typically costs £106–£356 per wheel fitted at a UK independent garage. Sealed hub units cost more in parts but less in labour; press-in bearings the reverse — the total lands in a similar band. Main dealers charge 30–50% more, and London and the South East sit at the top of the range.
Key things to know
- On the B7 and earlier, front bearing replacement is significantly more labour — the bearing must be pressed from the carrier, so many garages fit pre-assembled hub kits or work with the knuckle removed.
- B8/B9 replacement is a bolt-off/bolt-on job: crack the single-use centre axle bolt with the wheel on the ground, then the hub-unit bolts behind the knuckle.
- Bearing hum on the B8 is a recognised wear item on UK forums — progressive motorway-speed humming rather than any defect campaign.
- Every A4 has front driveshafts, and quattro models add rear driveshafts — so a quattro rear bearing includes the same axle-bolt work as the front.
Good question
Questions Okay gets asked a lot
How much does a wheel bearing cost for a Audi A4?
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Expect £106–£356 per wheel fitted at a UK independent garage in 2026, covering the bearing or hub unit plus labour. On the A4 the front is a bolt-on hub unit — dearer part, quicker fit and the rear is a bolt-on hub unit — dearer part, quicker fit, so quotes can differ front to rear. Main dealers charge more; use our cost calculator to adjust for your region.
Why do Audi A4 wheel bearing quotes vary so much between generations?
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Because the design changed. The B7 (2005–2008) uses bearings pressed into the hub carrier, which means dismantling and hydraulic press work — more labour. From the B8 (2008) onwards Audi switched to bolt-on sealed hub units that come off with a few bolts, cutting the labour time substantially. Same badge, same corner of the car, but a different job — so always quote by generation.
What does a worn wheel bearing sound like on a Audi A4?
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The classic sign is a humming, droning or growling noise that rises with road speed and often changes when cornering — louder turning one way, quieter the other. On the A4 the same noise is regularly confused with tyre wear, so have the wheels spun and checked for play before paying for a bearing. A bearing with noticeable play or roughness is an MOT failure, so don't leave it once it's audible.
Get a price for your Audi A4
Estimate the wheel bearing cost for your car and region, then compare quotes from trusted local garages.