BREMBO Prime 09.9477.23 Bremseskive til AUDI A4 365x34mm, 5, perforeret/indv. ventileret, todelt bremseskive, Bremsekaliber, aluminium

BREMBO Prime Brake Disc 09.9477.23 – Premium two-part perforated brake disc for Audi A4

The BREMBO Prime Brake Disc 09.9477.23 represents the pinnacle of Italian braking technology – engineered for enthusiasts who demand exceptional performance, precision and reliability. Manufactured by BREMBO, the world's leading brake system specialist, this high-performance two-part brake disc delivers superior braking force and exceptional heat management under the most demanding driving conditions. Technical specifications include an outer diameter of 365.0 mm, a disc thickness of 34.0 mm and advanced perforated/vented design.

The 09.9477.23 BREMBO Prime brake disc features a sophisticated two-part construction with an aluminium brake disc hub and perforated/vented iron disc ring. It has 5 mounting holes and is specifically designed for high-performance applications. The innovative design combines lightweight aluminium construction with superior heat dissipation properties. This premium brake disc comes with all necessary mounting hardware and meets the highest European safety standards.

Which vehicles are compatible with the BREMBO 09.9477.23?

For which Audi A4 models is the BREMBO Prime 09.9477.23 brake disc suitable?

This brake disc is compatible with the following Audi A4 models: Audi A4 B7 Saloon (2004–2008), Audi A4 B7 Avant (2004–2008), and Audi A4 B6/B7 Convertible (2002–2009). Disclaimer: Although some catalogues list general A4 B7/B6 body styles, the BREMBO 09.9477.23 brake disc is not suitable for standard A4 engines. Compatibility applies exclusively to RS4 models or vehicles confirmed by VIN/PR-code.

Installation instructions for BREMBO Prime 09.9477.23

1. Replace brake discs in pairs to ensure balanced braking performance and optimal safety.

2. Remove the wheels and carefully detach the brake caliper. Support the caliper securely to prevent stress on the brake lines.

3. Remove the old disc: carefully loosen all mounting bolts. If present, remove any retaining screws.

4. Thoroughly clean the hub assembly and mounting surfaces, removing all rust, dirt and brake dust residue.

5. Install the complete floating disc assembly (bell and rotor preassembled) onto the hub.

6. Do not remove or tighten the screws connecting the rotor ring to the bell. These are factory-torqued and secured with thread lock compound.

7. After installation, pump the brake pedal several times and verify brake fluid level is adequate.

8. Bedding-in: perform 8–12 progressive braking cycles from 80 to 30 km/h to establish proper friction surface contact.

FAQ: BREMBO Prime Brake Disc 09.9477.23

Do the brake pads need to be replaced at the same time as the BREMBO brake disc 09.9477.23?

Yes, it is essential to replace brake pads when installing new BREMBO Prime discs. This ensures optimal surface contact and prevents premature wear of the premium disc surface.

Is the BREMBO brake disc 09.9477.23 ventilated or solid?

This brake disc features advanced perforated/vented design. The perforations and internal cooling channels provide exceptional heat dissipation, making it ideal for high-performance driving conditions.

What are the advantages of the BREMBO Prime brake disc 09.9477.23 compared to other models?

The two-part construction with aluminium brake disc hub reduces unsprung weight while the perforated design supports improved heat management. Together these features deliver higher performance potential, reduced risk of brake fade under demanding conditions, and a firmer pedal feel when compared to many standard one-piece brake discs.

How should new brake discs be properly bedded in?

During the first 200-300 km, perform gradual braking and avoid aggressive stops. This allows the brake pads to properly mate with the perforated disc surface, ensuring optimal performance and longevity.

What is the outer diameter and thickness of this brake disc?

The outer diameter is 365 mm with a thickness of 34 mm – specifically designed for high-performance Audi A4 applications requiring maximum braking capability.

Is this brake disc suitable for vehicles with ABS?

Yes, the BREMBO Prime 09.9477.23 is designed for use on vehicles equipped with ABS and common electronic braking assistance systems, provided the vehicle is the correct application for this disc size and specification.

Do I need special tools to install the BREMBO brake disc?

Installation of this two-part brake disc requires standard brake service tools plus a torque wrench for proper bolt specifications. The aluminium hub assembly may require specific handling procedures to prevent damage. Note: the disc assembly is preassembled at the factory and must not be disassembled or have its fasteners retightened.

Can the BREMBO 09.9477.23 be used for track driving?

Yes, but only for light or occasional track use. This two-piece ventilated design handles high temperatures well, but 09.9477.23 is primarily intended for road and sporty driving. For regular or intensive track use, Brembo recommends their GT or Motorsport kits.

What is the weight difference between this two-part brake disc and standard discs?

The aluminium brake disc hub helps reduce unsprung weight compared to conventional one-piece cast-iron discs, which can improve suspension response and overall vehicle dynamics.

How long do BREMBO Prime brake discs typically last?

With proper bedding-in and maintenance, these premium brake discs can last 60,000-80,000 km depending on driving style and conditions. The high-quality materials ensure exceptional durability and consistent performance throughout their service life.