Audi A1 S1 8X Brake Caliper Wheel Braking Unit 310X25 Front Left N/S 8X0615123A

Audi A1 S1 8X Brake Caliper Wheel Braking Unit 310X25 Front Left N/S is an original braking system component from the Brake calipers and carriers category, designed for installation on the front left axle of Audi vehicles. This used OEM component ensures factory-fit, correct mounting geometry, and compatibility with the brake disc intended for this model.

Specifications and technical data

• SKU: 8X0615123A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8X0615123A
• Substitutable numbers: 8X0615123A, 8X0 615 123 A
• Location on the vehicle: Front, Left
• Part type: Brake Caliper & Bracket
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented brake caliper is designed for operation on the front left side of the vehicle, which is crucial for the correct distribution of braking forces and the proper functioning of the hydraulic system. The design is adapted to work with a 310x25 disc, which allows for maintaining the appropriate friction surface, thermal stability, and predictable braking characteristics.

The dedicated placement on the vehicle reduces the risk of incorrect installation, and the proper positioning of the bleeder screw and brake line mounting points facilitates maintenance and subsequent system bleeding.

Technical and functional characteristics

As an element from the Brake calipers and carriers category, this model is responsible for the precise guidance of brake pads relative to the disc, their even pressure against the working surface, and stable operation across a wide temperature range. The original Audi design ensures:

• maintenance of factory braking performance parameters,
• proper cooperation with safety systems (ABS, ESP) provided for the given model,
• appropriate body rigidity, limiting deformation during intensive braking.

The used OEM caliper is a solution that allows for maintaining the consistency of the entire braking system with the vehicle manufacturer's specifications, without the need to use aftermarket replacements with uncertain parameters.

Benefits of using an original Audi caliper

Using an original caliper on the front axle translates into a number of practical operational benefits:

• Factory fit – maintaining the correct position relative to the hub, disc, and carrier, which minimizes the risk of uneven pad wear.
• Consistency with other system elements – compatibility with the brake pads, discs, and brake lines intended for this model.
• Stable operation in road conditions – a design prepared for daily use, including dynamic driving.

For users who want to maintain the original braking characteristics of their Audi, choosing such a component is a technically sound and economically advantageous solution.

Product condition and service application

The item is offered as a used part, which allows for reducing repair costs while maintaining the manufacturer's original design. This type of component is suitable both for standard replacement of a worn caliper and for post-accident repairs where it is necessary to restore the original configuration of the braking system.

Due to its purpose, the caliper can be used as a base for further service (e.g., replacement of seals, guide pins, or pads), in accordance with procedures used in professional workshops.

Braking system expansion and additional materials

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, carriers, or mounting brackets, check the available parts in the Audi brake calipers and carriers category.

When selecting used braking system components, it is worth following proven inspection and installation procedures. Detailed tips on how to safely choose discs, calipers, and ABS components can be found in the article: Second-hand braking system: how to safely choose discs, calipers, and ABS?