Part can be found as reference #1 in illustration
Related Products
Transfer Case - Audi (09L-321-247)
2007-2009 Audi - 09L-321-247
Review Fitment & Product Details
Details
- Brand:
- SKU:
09L-321-247
- Other Names:
Housing
- Description:
A4 Cabriolet. Listed under Audi part number 09L-321-247, this Transfer Case transmits torque from the transmission to the wheels while accommodating suspension travel and steering angle, so joint condition and boot integrity determine how long the assembly survives. Every genuine Audi part is validated against the same specification as the original equipment component. Confirm fitment against your vehicle identification number before ordering.
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Vehicle Fitment
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Key Product Information
Additional Information
| SYMPTOMS | Drivers usually notice the following before replacing 09L-321-247: clicking on turns, vibration that increases with speed, a clunk on throttle transition, grease slung around the inside of a wheel, or a driveline whine that changes with load. If several of these appear together, diagnose the assembly as a whole rather than one part. |
| TROUBLESHOOTING | Diagnostic approach for 09L-321-247: inspect boots for splits and grease loss first, then check joint play by hand and note whether the noise changes with steering angle or with throttle load to isolate which joint is at fault. Document the readings before and after the repair so the fix can be verified. |
| INSTALLATION | Installing 09L-321-247 correctly requires the correct axle nut torque, which is a stretch fastener on most applications, and confirmation that boots are seated and clamped before the vehicle is lowered. Allow for the published labor time and any post installation calibration or coding. |
| MAINTENANCE | Keeping 09L-321-247 in service is inspection based, focused on boot condition, since a split boot loses grease and destroys an otherwise healthy joint within weeks. Consistent service intervals matter more than mileage alone on this system. |
| GENERAL_NOTES | Note for part 09L-321-247: all wheel drive applications require matched tire circumference across all four corners, and mismatched tires load the center differential continuously. Ordering by vehicle identification number is the most reliable way to confirm fitment. |
| REPLACEMENTS | Commonly replaced alongside 09L-321-247: axle nuts, boot clamps, and circlips are single use and replaced with the assembly, and driveline fluid is checked whenever a shaft or differential is disturbed. Confirm the related part numbers against the vehicle identification number. |
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