Audi Wheel Bearing Service Bulletin: Comprehensive Guide for 2009-2016 Models
Multiple Audi models manufactured between 2009-2016 may experience premature wheel bearing failure, leading to distinctive noise complaints. This detailed guide covers all affected vehicles, symptoms to recognize, warranty repair procedures, and how owners can claim this free service.
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Affected Audi Models and Model Years
The following vehicles are included in Technical Service Bulletin (TSB) No. 401548 for wheel bearing replacement:
Sedan and Sportback Models
- 2009-2016 Audi A4 (B8 generation)
- 2012-2016 Audi A6 (C7 generation)
- 2012-2016 Audi A7
- 2011-2016 Audi A8 (D4 generation)
Coupe, Convertible and SUV Models
- 2009-2016 Audi A5 Coupe
- 2009-2016 Audi A5 Cabriolet
- 2009-2016 Audi Q5 (first generation)
Identifying Wheel Bearing Failure Symptoms
Affected vehicles typically exhibit one or more of these audible symptoms between 35-75 mph:
- Buzzing/Humming: Low-frequency vibration noise increasing with speed
- Whining/Howling: High-pitched sound resembling wind noise
- Grinding/Droning: Metallic friction sounds during turns
- Whistling: Consistent pitch changes with wheel speed
Note: Noise typically originates from the front wheels but may occur at any corner depending on which bearing has failed.
Diagnostic Tips
To confirm wheel bearing issues:
- Test drive at varying speeds between 35-75 mph
- Listen for noise changes when swerving gently left/right
- Note if sound diminishes when reducing speed
- Check for wheel play when jacked up (professional inspection recommended)
Official Repair Procedure
Audi authorized dealers will perform the following corrective actions:
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- Complete front/rear wheel bearing inspection
- Replacement of faulty bearings with updated components
- Proper torque application using factory specifications
- Post-repair road test verification
Warranty Coverage Information
This service bulletin is covered under:
- New Vehicle Limited Warranty: 4 years/50,000 miles
- Extended Warranties: Audi Pure Protection or other valid contracts
- Goodwill Repairs: Audi may cover out-of-warranty cases for loyal customers
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What Owners Should Do
- Locate your 17-digit VIN (driver's side dashboard or registration)
- Contact an Audi authorized dealer
- Reference TSB 401548 during scheduling
- Alternative contacts:
- Audi Customer Service: 800-822-2834
- NHTSA Vehicle Safety Hotline: 888-327-4236
Additional Owner Resources
For comprehensive vehicle protection:
- Check for all active service bulletins
- Search NHTSA recall database
- Review recommended maintenance schedule
- Learn wheel bearing maintenance best practices
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Is this a safety recall?
No, this is a technical service bulletin (TSB), not a safety recall. While wheel bearing failure can eventually affect vehicle control, Audi has determined the issue doesn't meet NHTSA's recall criteria. However, Audi recommends prompt service to prevent accelerated tire wear and potential drivability concerns.
