Audi S4 B9 Front Brake Caliper Housing Left N/S 8W0615107F

Audi S4 B9 Front Brake Caliper Housing Left N/S is an original brake system component designed for installation on the driver's side. Thanks to its factory Audi design, it ensures precise brake pad guidance, stable operation under load, and consistency with the stock braking characteristics of the S4 B9 model. This is the ideal solution for users who want to maintain original geometry and brake system parameters when replacing a worn-out caliper.

Specifications and technical data

• SKU: 8W0615107F
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0615107F
• Substitutable numbers: 8W0615107F, 8W0 615 107 F
• Location on the vehicle: Left
• Category: Calipers & Brackets

Purpose and fitment

The presented item is a front brake caliper housing mounted on the left side of the vehicle, dedicated to the sports version of the Audi S4 B9 generation. The design was developed for the factory discs and pads used in this model, which allows for maintaining the braking efficiency intended by the manufacturer and even pad wear.

The driver's side placement facilitates part selection during service – the component is intended exclusively for the left side of the front axle, which minimizes the risk of installation errors and ensures the proper operation of the entire system.

Construction and technical characteristics

The caliper housing has been designed as a rigid, deformation-resistant base for the working elements of the brake system. The appropriate geometry of the guides and mounting sockets allows for:

• stable guidance of the brake pads relative to the disc,
• even distribution of braking forces across the entire friction surface,
• maintaining the correct position of the caliper relative to the hub and steering knuckle.

Such a solution promotes consistent braking force, reduces the risk of the vehicle pulling during braking, and supports the maintenance of predictable system operation in both road and dynamic driving conditions.

Benefits of using an original caliper

Using an original caliper housing in the Audi S4 B9 allows for maintaining consistency with the vehicle's factory configuration. Key advantages include:

• Factory fitment – preservation of original mounting points and geometry relative to the steering knuckle and brake disc.
• Compatibility with stock components – ability to work with the pads, discs, and mounting hardware specified by the manufacturer.
• Stable operating characteristics – predictable behavior of the brake system, consistent with the design assumptions of the S4 B9 model.

This solution is particularly beneficial for users who want to maintain the original character of the Audi brake system without introducing structural modifications.

Component condition and service application

The caliper housing comes from disassembly and is offered as a used part, which allows for an economical repair of the brake system while maintaining the manufacturer's original specifications. This type of component is suitable both for the standard replacement of a worn-out caliper and for rebuilding the brake system after mechanical damage.

Due to the nature of the component, installation in a specialized service center is recommended, following procedures for bleeding and checking system tightness to fully utilize the potential of the design intended for the S4 B9 version.

Brake system expansion and technical knowledge

If you are planning a comprehensive repair or upgrade of the braking zone in your Audi and need other elements from the same group, such as additional calipers, brackets, or supports, check out the available parts in the Audi brake calipers and brackets category.

When selecting used brake system components, it is worth following proven inspection and installation procedures – you will find practical tips in the article "Second-hand brake system: how to safely choose discs, calipers, and ABS?", which serves as a helpful checklist when planning service based on aftermarket parts.