Audi A4 S Line / S4 B9 Sedan Carbon Fiber Fog Vent Trim, 2017–2020 Pre-Facelift

Carbon Fiber Front Fog-Area Vent Trim for Audi A4 S Line / S4 B9 Sedan

Add a gloss carbon-fiber accent around the front bumper vent area with these trim components for the listed pre-facelift B9 sedan application. These are exterior vent trims, not complete fog lamps, lighting assemblies or a complete front bumper.

Listed Vehicle Fitment

• Audi A4 B9 S line Sedan and Audi S4 B9 Sedan.
• Listed years: 2017–2020, explicitly limited to pre-facelift bumpers.
• Exclusion: Audi A4 Base models.

Verify your production date, regional model year and actual front bumper and vent profile before ordering. The year range and pre-facelift restriction must both be satisfied; a 2020 registration or model-year label alone does not establish compatibility. Facelift bumpers, other body styles and other years are not confirmed. The A4 Base exclusion does not mean that an S4 trim called Base is automatically excluded; actual S4 bumper compatibility still requires verification.

Select the Correct Style

• Add-on Style: listed as the add-on option; confirm the existing trim surface and intended attachment arrangement before purchase.
• Replacment Style: the existing option name for the replacement-style version; confirm removal requirements, attachment points and any parts to be transferred.

These options are not interchangeable installation methods. Choose the version that matches your bumper and intended installation. The general description mentions included tape but does not give separate instructions or hardware contents for each style. Do not assume the replacement version mounts with tape alone.

Material and Finish

• Specified material: 3×3 weave carbon fiber.
• Gloss surface with a double-layer UV-protected clear coating.
• Dry-carbon construction and a specific curing process are not documented.

No measured cooling, aerodynamic, downforce or handling results are supplied. This listing does not promise improved airflow or vehicle performance.

Package and Installation

Installation tape is listed as included. Exact piece count, left/right contents, dimensions, tape quantity and replacement-style hardware are not itemized; confirm the selected package before ordering. Do not assume a pair from the plural product name alone.

Professional installation is recommended. Test-fit the selected version and confirm alignment before removing adhesive backing or dismantling factory trim. Follow the component-specific instructions rather than assuming both styles are no-drill or modification-free.

Where adhesive attachment is specified, clean and dry the contact surfaces and follow the adhesive manufacturer's preparation and curing instructions. Tape inclusion does not establish sufficient fastening for every configuration. Keep any fitted lamps, sensors and necessary air openings unobstructed, and confirm their operation and clearance after fitting.

Frequently Asked Questions

Does it include fog lights?
Complete lamps, bulbs, wiring and lighting electronics are not listed as included.

Does it fit an A4 Base bumper?
No. The source explicitly excludes A4 Base models.

Does the 2020 listing include facelift bumpers?
No facelift compatibility is established. The source specifically restricts the application to pre-facelift.

Which installation style should I choose?
Choose Add-on Style or the existing Replacment Style option only after checking your bumper and the attachment requirements for that version.

Are left and right pieces included?
The source does not itemize side-specific contents or quantities. Confirm the selected package before purchase.