Audi B9 / B9.5 (2015-2024) A4-S4-RS4 and A5-S5-RS5 Prepreg Dry Carbon Fiber Mirror Cap

Designed for the entire Audi B9 and B9.5 (2015-2024) A4, S4, RS4, A5, S5, and RS5 family, this Prepreg (Dry) Carbon Fiber Mirror Cap pair replaces the factory painted plastic caps and adds a subtle, RS-style carbon accent to your car. Manufactured in Europe and quality-controlled by BYC Performance, this Audi B9 carbon mirror cap set clips directly onto the OEM mirror body — no cutting, drilling, or modification required.

On the B9/B9.5 platform the mirror housing is shared across A4, S4, RS4, A5, S5, and RS5 in every body style — Sedan, Avant, Coupé, Sportback, and Cabriolet. A single SKU therefore fits 13 different Audi variants. Autoclave-cured prepreg carbon is noticeably lighter than wet-lay parts and offers outstanding UV resistance. Built to match the race DNA of the RS4/RS5's 2.9 TFSI V6 biturbo (EA839, 444 hp — shared with the Porsche Panamera 4S).

Key Features

• Prepreg (Dry) Carbon Technology: Pre-impregnated plies cured in an autoclave under high heat and pressure for a more consistent weave.
• Direct OEM Replacement: Factory painted plastic cap removes; carbon cap clips into place. No paint match required.
• High Strength: Carbon fiber offers very high strength for its weight.
• 2x2 Twill Carbon Weave: Authentic carbon pattern under a high-gloss UV-protective clear coat.
• Cross-Chassis Compatibility: A4-S4-RS4 (Sedan + Avant) and A5-S5-RS5 (Coupé + Sportback + Cabriolet) B9/B9.5 — one SKU fits 13 variants.
• Fast Shipping: Delivered via partner couriers across Turkey within 1-2 days.
• UV & Chemical Protection: Clear coat resists fading, cracking, bug splat, and fuel splash.

Prepreg (Dry) Carbon vs. Wet Carbon — Which Is Better?

Most aftermarket carbon parts use wet lay-up, with resin applied by hand and cured at room temperature — leaving voids and inconsistent weight. Prepreg (dry) carbon:

• Autoclave-cured under high heat and pressure → a more consistent weave
• A controlled resin ratio → lighter and stronger
• The production method widely chosen in motorsport
• Minimal UV fading over years of use

Vehicle Fitment

This Audi B9/B9.5 carbon mirror cap set fits every A4/S4/RS4 and A5/S5/RS5 variant on the B9/B9.5 platform:

• Audi A4 Sedan B9 (2015-2019) and B9.5 (2019-2023)
• Audi A4 Avant B9 (2015-2019) and B9.5 (2019-2023)
• Audi S4 Sedan B9 (2016-2019) and B9.5 (2019-2023) — 3.0 TFSI V6 / 3.0 TDI V6 MHEV
• Audi S4 Avant B9 (2016-2019) and B9.5 (2019-2023)
• Audi RS4 Avant B9 (2017-2019) and B9.5 (2019-2023) — 2.9 TFSI V6 biturbo 444 hp
• Audi A5 Coupé B9 (2016-2019) and B9.5 (2019-2024)
• Audi A5 Sportback B9 (2016-2019) and B9.5 (2019-2024)
• Audi A5 Cabriolet B9 (2017-2019) and B9.5 (2019-2024)
• Audi S5 Coupé B9 (2016-2019) and B9.5 (2019-2024) — 3.0 TFSI V6
• Audi S5 Sportback B9 (2016-2019) and B9.5 (2019-2024)
• Audi S5 Cabriolet B9 (2017-2019) and B9.5 (2019-2024)
• Audi RS5 Coupé B9 (2017-2019) and B9.5 (2019-2024) — 2.9 TFSI V6 biturbo 444 hp
• Audi RS5 Sportback B9 (2018-2019) and B9.5 (2019-2024)

Important notes:

• The mirror housing is shared across all trims and body styles on the B9/B9.5 platform. This SKU fits each one perfectly.
• NOT compatible with previous-generation B8/B8.5 A4-A5 (2008-2015) — different mirror housing.
• NOT compatible with C7/C8 A6-A7 or 8V A3 — different platforms with different mirror housing geometry.

Technical Specifications

• Material: Prepreg Carbon Fiber (2x2 Twill Weave)
• Manufacturing: Autoclave Cure
• Finish: High-Gloss Clear UV-Protective Resin
• Color: Natural carbon weave black
• Origin: Europe
• Contents: Left + right mirror caps (set)

Installation Notes

Audi B9 carbon mirror cap installation uses a clip system — no screws required.

1. Carefully pull the original plastic cap to release its clips (start from the bottom).
2. Seat the new carbon cap on the upper clips first.
3. Press the lower edge firmly to engage the remaining clips.
4. Verify the cap sits evenly against the mirror housing on all edges.
5. Confirm all clip points are engaged.

Care & Maintenance

Wash with pH-neutral car shampoo. Apply carbon-safe sealant every 6 months. Keep pressure washer nozzle at least 30 cm from surface.

FAQ

Does this set fit both the A4 family and the A5 family?
Yes. On the B9/B9.5 platform the mirror housing is shared across A4, S4, RS4, A5, S5, and RS5 in every body style. One SKU fits 13 variants.

Compatible with RS4 and RS5?
Yes. The mirror housing is identical on the RS trims; this set fits the RS4 Avant and RS5 Coupé/Sportback.

Compatible with Cabriolet (A5/S5)?
Yes. The Cabriolet shares the same mirror housing as the Coupé.

Compatible with both B9 and B9.5?
Yes. The B9.5 facelift did not change the mirror housing.

Compatible with previous-generation B8/B8.5?
No. B8/B8.5 A4/A5 use a different mirror housing.

Compatible with C8 A6/A7 or 8V A3?
No. These platforms have different mirror housings; separate C8 and 8V carbon mirror cap versions are available in our catalog.

Does it need painting?
No. The carbon weave is the final finish; no paint or clear coat is required.

Shipping time?
In-stock items ship within 1-3 business days via partner couriers. International shipping available.

Warranty?
BYC Performance offers a 12-month manufacturer warranty on this product.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium carbon fiber parts from leading European manufacturers and supplying them to the Turkish market. Our catalog includes Audi B9 carbon parts, Audi RS carbon diffusers, BMW M3 carbon mirror caps, Porsche carbon spoilers, and many more high-quality carbon components. Every part we source undergoes strict quality control.