8K0 807 521 Rear Bumper Air Deflector for AUDI A4 2009
Product: Rear Bumper Air Deflector
Primary OE: 8K0 807 521
Item code: AD02003-025
Cross-reference numbers:
8K0 807 521
8K0807521
Brand: AUDI
Model: A4
Application reference: 2009 AUDI A4
Position: Rear
Verification: Confirm that 8K0 807 521 matches the intended 2009 AUDI A4 and verify the unpainted panel on the vehicle.
Supply note: Reference AD02003-025 when discussing carton protection, labels, pallet rules and transport method.
8K0 807 521 supports replacement-panel purchasing when buyers need a traceable application reference. For 2009 AUDI A4, Yongshang Auto tracks the requested rear bumper air deflector as AD02003-025.
AD02003-025 requires an application-specific review: The quotation should state whether the request concerns a complete bumper-aero component, an upper section or a lower section to avoid an incorrect comparison. Those observations should remain available during sample and bulk-order review.
Compatibility Review for This Reference
Fitment guidance for 8K0 807 521. Confirm whether the vehicle carries parking sensors, front camera equipment, headlamp washers, fog lamps, reflectors or special mouldings. Each feature can change the required holes, brackets or trim interfaces. The repairer should document the outcome before transferring trim components.
The rear location on 2009 AUDI A4 should be reviewed as follows: Check that vehicle-side brackets, retainers and absorbers are serviceable. Damaged support parts can create an apparent fit problem that is not caused by the replacement bumper-aero component. This approach reduces dependence on exterior appearance alone.
Product Technical Specifications
| Product type | Rear Bumper Air Deflector |
|---|---|
| Primary OE reference | 8K0 807 521 |
| Cross-reference numbers | 8K0 807 521 |
| Internal item code | AD02003-025 |
| Vehicle brand | AUDI |
| Vehicle model | A4 |
| Model year | 2009 |
| Installation position | Rear lower bumper area |
| Applicable vehicle | 2009 AUDI A4 |
Interface With Adjacent Components
Functional context for 8K0 807 521. Its broad surface restores the visual continuity of the vehicle after damage. The repairer should evaluate waviness, edge condition and aperture shape during incoming inspection. Those observations should remain available during sample and bulk-order review.
Application note for item AD02003-025. The outer bumper-aero component contributes to styling and low-speed surface protection, but it is not a substitute for the reinforcement system. Buyers should quote each required assembly part separately. The repairer should document the outcome before transferring trim components.
Surface Review Before Refinishing
Receiving note for carton AD02003-025. Use clean gloves and padded supports during handling. Protecting the finish area reduces rework and keeps the inspection record clear for buyer and supplier. The result should be recorded before commercial release of the requested quantity.
Pre-finish check for 2009 AUDI A4. Keep the panel wrapped until a clean inspection area is available. Dust, metal filings and nearby body-shop work can mark the visible surface before painting starts. Those observations should remain available during sample and bulk-order review.
Buyer Checklist for an Export Order
A quotation for 8K0 807 521 should reflect this guidance: State whether the order is a sample, mixed-model shipment or repeat programme. bumper spoilers and air deflectors are volume-sensitive, so carton and loading assumptions should be discussed before the freight quotation. The completed check supports a traceable discussion between buyer and supplier.
The 3 square images attached to AD02003-025 support visual review. Ask for pre-shipment photographs when the purchase programme requires packaging approval. The record should show item labels, carton condition and loading arrangement. The result should be recorded before commercial release of the requested quantity.
Frequently Asked Questions
Why must the workshop verify OE 8K0 807 521?
2009 AUDI A4 is the stated reference for this page. Use build-month data near facelift changes. Registration year by itself may not identify the correct generation boundary. This evidence belongs in the same approval file as the vehicle photographs.
Which commercial record should show code AD02003-025?
Supplier-code context for this rear bumper air deflector. Confirm the delivery market and preferred transport method. Packing design can differ between sample courier movement, consolidated sea freight and full-container supply. Keep AD02003-025 beside 8K0 807 521 in the final commercial record.
Which hidden details can distinguish this bumper-aero component from a similar design?
Panel-comparison guidance for 2009 AUDI A4. Request a full photographic record of the removed bumper-aero part and vehicle. Include labels, side retainers, upper fixings, lower mounts and all grille or lamp openings. That comparison gives the workshop a clearer basis for a pre-paint decision.
When can the body shop release this bumper-aero component to the paint area?
Finishing guidance for OE 8K0 807 521. Release the bumper-aero component to paint only when the fitment record shows that OE data and physical comparison support the same application. The completed check supports a traceable discussion between buyer and supplier.
Which logistics details should be discussed with quantity?
Wholesale request for AD02003-025. State the required inspection record, sample-approval process and transport method. Large exterior panels need early agreement on protection and volume. A dated photo record makes the decision easier to review if questions arise later.
Request a Quote for 8K0 807 521
Quote the item code on every revision of the enquiry. Traceable references reduce confusion when several front, rear, upper or lower covers are reviewed together. For Yongshang Auto’s review, connect 8K0 807 521 and AD02003-025 with the intended 2009 AUDI A4, requested quantity and delivery market.






