Audi S4 B9 Front Brake Caliper Braking Unit Housing Right O/S 8W0615108F

Audi S4 B9 Front Brake Caliper Braking Unit Housing Right O/S is an original braking system component from the Brake Calipers and Brackets category, designed for operation on the front right axle of the vehicle. This solution is engineered to maintain factory braking parameters, stability, and predictable vehicle behavior under both road and workshop conditions.

Specifications and technical data

• SKU: 8W0615108F-3
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0615108F
• Substitutable numbers: 8W0615108F, 8W0 615 108 F, 8W0 615 108 AE, 8W0615108AE
• Location on the vehicle: Front, Right
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented caliper is dedicated for installation on the front right side of the vehicle, in direct proximity to the brake disc. As a working element of the braking system, it is responsible for precisely pressing the brake pads against the disc, which translates into effective deceleration and vehicle stability during intense braking. Selecting the correct caliper for the specific axle and side of the vehicle is crucial for even distribution of braking forces, which is why using a component dedicated to the Audi S4 B9 allows for maintaining the structural consistency of the entire system.

Technical and functional characteristics

As an original Audi brand component, the caliper has been designed for compatibility with the factory braking system of this model. This includes matching the:

• geometry of the steering knuckle and wheel hub,
• diameter and thickness of the brake disc intended for the S4 version,
• standard mounting points for the brake line and pad guide elements. Such a design ensures proper caliper body rigidity, resistance to thermal loads, and repeatability of piston operation, which is particularly important in high-performance cars such as the S4.

Benefits of using an original used caliper

Using an original, used brake caliper in an Audi S4 B9 allows for maintaining factory system performance parameters while reducing repair costs compared to purchasing a new part. This solution is particularly beneficial in the case of:

• post-accident repairs and targeted replacement of braking system components,
• restoring the car to a state close to factory condition after intensive use,
• upgrading the braking system as part of preventive maintenance. The original caliper from this product group maintains compatibility with factory mounts, lines, and hardware, which facilitates installation and reduces the risk of fitment issues. For the workshop, this means a more efficient service process, and for the user – predictable vehicle behavior during braking.

Part selection by numbers and technical support

This caliper model has an assigned OEM part number and interchangeable numbers, which facilitates unambiguous identification of the component in service catalogs and part selection systems. Thanks to this, a mechanic or service advisor can quickly verify the compatibility of the element with a specific equipment version and vehicle model year, minimizing the risk of ordering errors. To better understand how to safely use original recycled components and how to optimize service costs, it is worth reading the guide: Brake calipers under the microscope: How to effectively reduce braking system repair costs by choosing verified recycled parts. The article explains what to look for when selecting used calipers and how to assess their suitability for further use.

Workshop work and ordering convenience

Using an original brake caliper in an Audi S4 B9 service simplifies the installation process – the mechanic receives a component that is structurally matched, which limits the need for modifications and speeds up service completion. For users who want to organize repairs remotely, the guide describing the process of ordering parts to a workshop may be helpful: Car repair without leaving home: how to order used parts online directly to the workshop?. You will find tips there regarding selection by markings, condition assessment, and forwarding the shipment directly to the mechanic.

Expanding the Audi braking system

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, mounting brackets, or guide supports, check the available parts in the Audi Brake Calipers and Brackets category.