Audi A3 RS3 8V Coil Spring Suspension Set Rear Left Right N/O/S Set 5Q0511115KJ

Audi A3 RS3 8V Coil Spring Suspension Set Rear Left Right is a set of original components from the Leaf springs and coil springs group, designed for the rear axle of the vehicle. The set includes springs mounted on the left and right sides, which allows for a consistent, technically correct replacement of both suspension elements in Audi vehicles.

Specifications and technical data

• SKU: 5Q0511115KJ
• Mark: Audi
• Condition: Used
• OEM Part Number: 5Q0511115KJ
• Substitutable numbers: 5Q0511115KJ, 5Q0 511 115 KJ
• Location on the vehicle: Rear, Right, Left
• Category: Leaf & Coil Springs

Purpose and vehicle placement

The presented spring set is designed for installation on the rear axle, on both the left and right sides. This arrangement ensures even support of the body, stable handling, and predictable vehicle behavior during acceleration, braking, and driving over uneven surfaces.

Elements from this group are responsible for maintaining the correct suspension height, load-bearing, and working in conjunction with the shock absorbers. Properly selected rear springs are particularly important in high-performance cars, such as RS versions, where the suspension operates under higher dynamic loads.

Technical and functional characteristics

The springs in the set function within the suspension system as resilient elements, compensating for road irregularities and stabilizing the body. Their geometry and stiffness are adapted to the specifics of Audi models, which translates into predictable suspension performance.

In practice, this means:

• maintaining the correct geometry of the rear axle under typical operating conditions,
• reducing excessive body roll during dynamic driving,
• consistent cooperation with stock shock absorbers and other suspension components.

By using elements from the same design group on both sides of the axle, the user gains uniform suspension performance and predictable vehicle reactions.

Brand, origin, and condition of the components

The spring set comes from an Audi vehicle, which means it complies with the manufacturer's factory design and assembly standards. The items are marked as used, which in practice means they have been dismantled, and their parameters are a result of previous use in a vehicle.

For many users and workshops, choosing original, used suspension components is a reasonable compromise between cost and maintaining factory handling characteristics. In the case of suspension springs, this is particularly significant as they directly affect ride comfort and vehicle stability.

Benefits of installing a complete rear set

Installing a set that includes both the left and right sides of the rear axle helps avoid differences in suspension performance that could occur when replacing only a single element. Replacing a pair of springs in one go:

• reduces the risk of suspension height asymmetry,
• ensures consistent vehicle behavior when the trunk and rear seats are loaded,
• facilitates the diagnosis of any potential future suspension faults.

For workshops and users, this means a more predictable service result and less need for repeated suspension work in the short term.

Selection and practical application

When selecting suspension springs for a specific Audi vehicle, it is crucial to compare the parameters with the vehicle documentation and existing components. The product has assigned technical markings, including the OEM part number and available interchangeable numbers, which facilitates verification of compatibility with a specific equipment and engine version.

In case of doubt, it is recommended to cross-reference the data with the manufacturer's catalog or consult a service center specializing in the Audi brand to ensure full compatibility with the given model and body version.

Expanding suspension work on your Audi

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 resilient components, check out the available parts in the Audi leaf springs and coil springs category.

In the case of broader repair work following a collision or mechanical damage, it is also worth considering the selection of appropriate body elements and mounts. Practical tips on using dismantled parts in post-accident repairs can be found in the article Bodywork and chassis – post-accident repairs using dismantled parts, which discusses the approach to selecting used OEM components in a safe and economical manner.