Mercedes C117 Rear Axle Eibach Spring Coil Set Kit R21238 J/V A2463242804

Mercedes C117 Rear Axle Eibach Spring Coil Set Kit is a precisely engineered set of coil springs designed for the rear axle, dedicated to Mercedes C117 series models. The use of renowned Eibach suspension technology translates into more stable handling, better vehicle control, and predictable car behavior in corners. This is a solution for drivers expecting significantly improved suspension performance while maintaining high ride comfort.

Specifications and technical data

• SKU: R21238
• Mark: Unbranded
• Condition: New
• OEM Part Number: R21238
• Substitutable numbers: R21238
• Location on the vehicle: Rear
• Category: Leaf & Coil Springs

Purpose and function in the suspension system

The rear axle spring set plays a key role in suspension operation, responsible for maintaining the correct ride height, load bearing, and controlling deflection during dynamic maneuvers. In the case of the Mercedes C117, the use of Eibach springs allows for:

• more precise rear axle handling at higher speeds,
• reduction of body roll during sudden braking and acceleration,
• more stable vehicle behavior when the trunk and rear seats are fully loaded.

Thanks to being matched to the specific vehicle axle, the set ensures consistent, repeatable suspension performance parameters, which is particularly important in premium class cars.

Construction and characteristics of the springs

The Eibach coil springs included in this set belong to the Leaf springs and coil springs group, meaning they are a load-bearing suspension component responsible for ride comfort and safety. The spring design is optimized for:

• properly selected stiffness, providing a compromise between comfort and sporty characteristics,
• even load distribution along the entire length of the coil,
• stable operation across the full range of suspension travel.

A set configured in this way allows for more precise rear axle response to steering inputs, which improves driving confidence both in the city and on the highway.

Compatibility and application in the Mercedes C117

The spring set has been prepared for installation on the rear axle in Mercedes C117 family models, where it works with factory suspension components such as shock absorbers, control arms, or bushings. This makes it possible to:

• maintain correct suspension geometry after installation,
• reduce the risk of uneven tire wear,
• maintain predictable handling characteristics in accordance with the vehicle manufacturer's specifications.

The product is particularly recommended in situations where existing springs show signs of material fatigue, one side of the vehicle is sagging, or a suspension upgrade towards more dynamic characteristics is planned.

Benefits of installing the Eibach spring set

Choosing this rear axle spring set brings a number of practical operational benefits:

• Improved driving stability – especially noticeable during rapid lane changes and in long highway curves.
• Better body control during sudden emergency maneuvers.
• Consistent, predictable suspension operation across the full load range.
• The possibility of a conscious suspension upgrade without interfering with other drivetrain components.

For users expecting a durable and technically refined solution for the rear axle suspension, this set represents an attractive and functional basis for improving the driving dynamics of the Mercedes C117.

Suspension upgrade expansion and technical knowledge

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

To better understand the impact of suspension condition on the durability of other components and the overall reliability of the drivetrain in popular Mercedes C-Class and E-Class models, it is worth consulting specialized technical materials – you can find practical tips in the article "Reliability under the star sign – how to take care of engine accessories in popular Mercedes-Benz C-Class and E-Class models?".