OVERVIEW
Original screw for the front bumper guide attachment
N-100-449-05 is the Genuine VW/Audi 4.2x16 panel screw assigned to the front bumper guide attachment on the confirmed A8 applications below. It fastens the original guide at its specified mounting point.
Fasteners with a similar diameter can have different lengths, head forms and clamping requirements. Match the original factory number and assigned joint rather than choosing a bolt by appearance alone.
Technical details
- Complete factory number: N-100-449-05.
- Factory specification: 4.2 × 16 oval-head combination panel screw.
- Design: oval recessed-drive head with washer and coarse panel-screw thread.
- Quantity supplied: one individual screw.
The nominal thread and length describe the fastener itself. This listing supplies one bolt rather than the full quantity required for an assembly. Matching nuts, washers, brackets and related parts are separate.
Common reasons to replace
- The original bolt is missing after component service.
- Threads are damaged or will not engage correctly.
- The drive head is rounded or otherwise damaged.
- Corrosion or deformation makes the original fastener unsuitable for reuse.
Inspect the guide, receiving clip and surrounding mounting features before replacement. Cracked guide tabs or stripped receiving hardware need separate repair. This screw is not a replacement for a structural bumper reinforcement fastener.
Vehicle fitment
Use only at the assigned factory fastening position on the listed applications. These vehicle entries do not establish compatibility with every fastening point on the vehicle.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A8 | 2004–2006 | 4.2L gasoline V8 | D3 sedan; standard or long wheelbase; quattro | Assigned front bumper-guide screw; match original guide and fastener position. |
| Audi A8 | 2005 | 6.0L W12 gasoline | D3 A8 L; quattro | Assigned front bumper-guide 4.2x16 screw only. |
Installation guidance
Follow the vehicle-specific bumper-guide procedure. Support any loosened trim, align the guide and receiving clip before starting the screw and apply the specified tightening torque. Avoid forcing a misaligned panel screw into plastic.
Check that the guide is secure and that any disturbed trim is correctly aligned and retained. This listing contains only small mounting hardware.
Ordering information
One individual genuine screw. Bumper guide, bumper cover, body panels and additional hardware are separate.