Mercedes SLK R171 Rear Axle Suspension Spring Left Right N/O/S Coil Set

Mercedes SLK R171 Rear Axle Suspension Spring Left Right N/O/S Coil Set is a set of original suspension components designed for the rear axle, prepared for installation on both the right and left sides of the vehicle. The set ensures consistent, predictable vehicle behavior and helps restore the proper geometry and stability of the rear body section. By maintaining the factory spring characteristics, the chassis remains comfortable, and the car's reactions are properly balanced.

Specifications and technical data

• SKU: R171 Rear Coil Spring Set
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: R171 Rear Coil Spring Set
• Substitutable numbers: R171 Rear Coil Spring Set, KD
• Location on the vehicle: Rear, Right, Left
• Category: Leaf & Coil Springs

Purpose and function in the suspension

The presented spring set is dedicated to the rear axle of the Mercedes SLK R171 generation and operates on both the right and left sides simultaneously. These components are responsible for maintaining the correct ride height, stabilizing the vehicle during acceleration and braking, and providing damping comfort in conjunction with the shock absorbers.

Selecting a pair of springs in one set allows for symmetrical suspension deflection, which translates into predictable handling, even tire load, and proper operation of the vehicle's safety systems.

Benefits of using the original set

Using a complete set of rear springs on a single vehicle model reduces the risk of differences in performance characteristics between the right and left sides. This is particularly important in cars with precisely tuned suspension, such as the Mercedes SLK, where even minor deviations can affect stability at higher speeds.

Key advantages of this solution include:

• maintaining the factory balance between suspension comfort and stiffness,
• consistent rear axle behavior during dynamic maneuvers,
• better control over body roll during load changes,
• reduction of uneven tire wear on the rear axle.

As a result, this spring set can be used both for standard replacement of worn parts and for repairs following mechanical damage to the rear suspension.

Installation characteristics and fitment

The springs in this set are intended for installation on the rear axle, assigned to both sides of the vehicle – right and left. This solution simplifies part selection during repairs, as the mechanic receives a set of matched components ready for operation on one axle.

The elements belong to the Leaf and coil springs group, meaning they are an integral part of the vehicle's suspension system and work in conjunction with other suspension components. Proper seating of the springs and maintaining the correct position relative to the shock absorbers has a direct impact on driving safety, which is why installation in a specialized service center is recommended.

Condition and practical application

The offered set comes from disassembly and is intended for users looking for a functional service solution on a reasonable budget. Used suspension components of this type are often chosen for maintenance repairs when the priority is to maintain the original performance characteristics of the chassis without the need to invest in new parts.

Replacing the set of springs on the rear axle is particularly recommended when symptoms appear such as one side of the vehicle sagging, clear differences in ride height, knocking under load, or improper vehicle behavior when driving over uneven surfaces.

Suspension upgrade expansion

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

If you are considering a wider range of work using parts from disassembly and want to better assess when used components are a good choice in terms of quality and aesthetics, it is worth reading the guide: Replacing body parts with used ones – can body parts from disassembly look like new?. This will allow you to better plan the service strategy for the entire vehicle, also in the context of selecting used mechanical parts.