Audi S4 B8 Coil Spring Suspension Set Rear Left Right N/O/S 8K0511115HA

Audi S4 B8 Coil Spring Suspension Set Rear Left Right is an original component from the Leaf and coil springs group, designed for the rear axle of the Audi sports sedan. Engineered for demanding operating conditions, the spring provides stable body support, predictable vehicle handling, and proper integration with other suspension components.

Specifications and technical data

• SKU: 8K0511115HA
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0511115HA
• Substitutable numbers: 8K0511115HA, 8K0 511 115 HA
• Location on the vehicle: Rear, Right, Left
• Category: Leaf & Coil Springs

Purpose and vehicle placement

The presented spring operates in the rear suspension of the Audi S4 B8 and can be installed on both the right and left sides of the axle. This solution facilitates the selection of the appropriate part during service while ensuring consistent suspension performance on both sides of the vehicle.

Thanks to its precise fit for the specific Audi model, the correct deflection characteristics are maintained, which translates into stability at higher speeds, confident cornering, and predictable vehicle behavior during braking and acceleration.

Suspension spring operating characteristics

The spring from the Leaf and coil springs group is responsible for transferring loads between the body and the wheels, as well as maintaining the correct vehicle ride height. In the Audi S4 B8, this is of particular importance due to the car's sporty nature and higher dynamic loads.

• controlled deflection under load,
• stable rear axle support,
• consistent cooperation with shock absorbers and other suspension components,
• maintenance of proper wheel geometry under typical road conditions.

A properly selected spring helps reduce excessive body roll, improves traction, and influences ride comfort, especially during dynamic driving.

Benefits of using an original Audi spring

Using an original Audi component in the rear axle of the S4 B8 allows for the preservation of the factory suspension design specifications. This means predictable vehicle reactions, no need for modifications to other components, and easier diagnostics in the future.

• secure fit to suspension mounts and seats,
• preservation of the operating characteristics designed by the manufacturer,
• consistency with safety systems and electronics monitoring vehicle stability.

For users expecting precise handling and consistent road behavior from their Audi S4 B8, using an original rear axle spring is a technically sound and long-term beneficial solution.

Component condition and service application

The offered spring is a used component, making it an attractive cost-effective alternative for suspension repairs, especially when multiple components need to be replaced simultaneously. This type of part is suitable for both standard repairs following mechanical damage and for restoring factory suspension parameters after previous modifications.

Due to its placement in the rear axle, it is recommended to inspect both sides of the suspension and – if necessary – replace the pair of springs to maintain uniform operating characteristics on the right and left sides of the vehicle.

Related Audi suspension components

If you are planning a comprehensive repair or upgrade of the rear suspension area in your Audi and need other elements from the same group, such as additional springs, leaf springs, or related components, check the available parts in the Audi leaf and coil springs category.

More practical information on the cost-effectiveness of using used components in key car systems can be found in the article dedicated to the EGR exhaust gas recirculation system: EGR: what it is and why it is worth considering used EGR valves.