Wheel bearing Audi A4 B9 rear (2015–2023) — SKF, FAG, Timken, SNR
Rear wheel bearing for Audi A4 B9 (2015–2023) — SKF, FAG, Timken, SNR, Koyo part numbers, dimensions and replacement interval.
Technical Specifications
| Parameter | Value |
|---|---|
| Make / Model | Audi A4 B9 |
| Production Years | 2015–2023 |
| Axle | Rear |
| Bearing type | hub unit |
| Inner diameter | 32 mm |
| Outer diameter | 72 mm |
| Width | 37 mm |
| ABS sensor | Integrated |
| Replacement Interval | 150 000 km |
Compatible Wheel Bearings
| Manufacturer | Part number | Grade |
|---|---|---|
| SKF | VKBA6591 | OE quality |
| FAG (Schaeffler) | 713678290 | OE quality |
| Timken | SP500401 | OE quality |
| SNR (NTN) | R155.91 | OE quality |
| Koyo | HA590102 | OE quality |
Replacement Interval
Wheel bearings typically last 150 000 km. In reality, failure depends on road conditions — potholes and kerb impacts accelerate wear.
Always replace the ABS ring/tone wheel together with the bearing if it is integrated.
Signs of a Failing Wheel Bearing
- Humming or growling noise that changes with vehicle speed
- Noise increases when turning (load shifts to the worn bearing)
- Vibration felt through the steering wheel or floorpan
- Excessive play or wobble when the wheel is rocked by hand
FAQ
Which wheel bearing fits Audi A4 B9 rear?
SKF VKBA6591, FAG 713678290, Timken SP500401. Dimensions: 32×72×37 mm. Integrated ABS sensor: yes.
How do I diagnose a bad wheel bearing on Audi A4 B9?
Jack the car, grip the tyre at 12 and 6 o’clock and rock it. Excessive play indicates a worn bearing. Drive at 60–80 km/h on a quiet road — humming that changes pitch when you swerve confirms a bearing fault.
Should wheel bearings be replaced in pairs?
Not necessarily for hub-unit type bearings. Replace only the failed side. However, if the opposite bearing is close to the same mileage, replacing both saves labour costs.
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