Audi S3 8V Brake Caliper Wheel Braking Unit Rear Left N/S 8V0615423B

The Audi S3 8V Brake Caliper Rear Left Wheel Brake Assembly is an original part from the Brake Calipers and Brackets group, designed for the rear left part of the braking system. This solution is dedicated to demanding Audi users who expect precise operation, stability, and predictable vehicle behavior during braking.

Specifications and technical data

• SKU: 8V0615423B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V0615423B
• Substitutable numbers: 8V0615423B, 8V0 615 423 B
• Location on the vehicle: Rear, Left
• Part type: Brake Caliper & Bracket
• Category: Calipers & Brackets

Intended Use and Vehicle Placement

The presented wheel brake assembly is designed for installation in the rear left axle area. This placement is crucial for even distribution of braking force and vehicle stability during rapid deceleration. A properly selected caliper at this point in the braking system supports correct cooperation with other components, minimizing the risk of the car pulling to one side.

Technical and Functional Characteristics

As an original Audi part, the brake caliper is structurally matched to the suspension and hub geometry of the S3 8V model. This means correct positioning relative to the disc, proper operation of the caliper mechanism, and compatibility with the factory hydraulic system. The wheel brake assembly has been developed to ensure:

• stable pad guidance relative to the disc,
• repeatable braking force across successive work cycles,
• consistent cooperation with the vehicle's safety systems.

Thanks to this, the braking system maintains predictable parameters, which translates to greater control over the car in everyday use and during dynamic driving.

Benefits of Using an Original Audi Caliper

Using an original brake assembly in the Audi S3 8V allows for the maintenance of the braking system's original operating characteristics. Precise structural fit reduces the need for installation modifications and lowers the risk of leaks or improper alignment relative to the disc. This solution is particularly beneficial for users who expect consistency with other system components and want to maintain the parameters specified by the vehicle manufacturer.

A part from this group is suitable for both standard replacement of a worn caliper and for service work involving broader maintenance of the rear axle. Consistency with the factory brake system design promotes even wear of pads and discs and facilitates subsequent diagnosis of any irregularities.

Application in Brake System Service and Upgrades

This rear left wheel brake assembly is suitable for both routine repairs and more extensive work on the rear part of the Audi S3 8V braking system. It can be used in workshops specializing in the Audi brand, as well as by informed users who independently monitor the technical condition of their vehicle. By adhering to manufacturer standards, installation proceeds in an organized manner, and subsequent operation does not require additional setting adjustments due to the non-original geometry of the component.

Technical Support and Component Selection

When selecting used brake system components, it is worth considering not only model compatibility but also the technical condition and origin of the parts. To better prepare for evaluating such components, an article describing the key aspects of purchasing brake parts from the secondary market will be helpful – you can find it here: Used Brake System: How to Safely Choose Discs, Calipers, and ABS?.

If you are planning a comprehensive repair or upgrade of the braking zone in your Audi and need other parts from the same group, such as additional calipers, brackets, or mounting holders, check the available parts in the Audi Brake Calipers and Brackets category.