Mercedes ML W164 W166 Rear Spring Rear Coil Suspension Set A1643240904

Visual condition of the part

The product shows signs of use visible in the photos.

Rear Spring Mercedes ML W164 W166 Rear Coil Suspension Set is an original component from the Leaf and coil springs group, designed for the vehicle's rear axle. This used spring ensures factory suspension performance characteristics, which translates into predictable handling and vehicle stability. It is a solution for drivers who want to restore correct geometry and ride comfort without interfering with the suspension design.

Specifications and technical data

• SKU: A1643240904
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1643240904
• Substitutable numbers: A1643240904, A 164 324 09 04
• Location on the vehicle: Rear
• Category: Leaf & Coil Springs

Purpose and function in the suspension

The rear suspension spring in Mercedes ML W164 and W166 series models is responsible for maintaining the proper body height and evenly distributing loads to the rear axle. This component works in conjunction with shock absorbers, stabilizers, and other suspension parts, influencing:

• vehicle stability when driving over uneven surfaces,
• control of body roll in corners,
• maintaining the correct body position when the trunk is loaded or when towing.

By maintaining the factory spring characteristics, the car regains predictable steering response and consistent behavior under typical road conditions.

Benefits of using an original rear spring

Using an original rear spring in a Mercedes ML helps avoid issues related to incorrect hardness or operating height selection. Key advantages include:

• maintaining the suspension performance characteristics designed by the manufacturer,
• proper cooperation with stock shock absorbers and other system components,
• reducing the risk of uneven tire wear resulting from an incorrect rear axle height,
• maintaining ride comfort at a level expected for the SUV segment.

For users who expect stable handling and predictable car behavior, choosing this component is a practical solution for repairing or restoring the factory state of the suspension.

Installation characteristics and fitment

The rear spring from the set has been designed to work in a specific Mercedes ML suspension system, which translates into a precise fit for mounting seats and spring plates. As a result, the replacement process is straightforward, without the need for modifications to accompanying elements. A correctly selected spring helps to:

• restore equal height on both sides of the rear axle after replacing a pair of components,
• minimize stress on other suspension components,
• maintain the correct operation of vehicle stability assistance systems.

Such fitment is particularly important in cars equipped with advanced traction and stability control systems, where changing the suspension characteristics can affect their operation.

Application in service practice

The rear spring in a Mercedes ML is a wear-and-tear part that can eventually suffer from material fatigue or mechanical damage. Replacing it with an original component from the same design group allows for restoring:

• stable vehicle behavior under full load,
• proper suspension operation when driving with a trailer,
• consistent performance of the rear axle with the front part of the chassis.

For workshops and users servicing the vehicle themselves, this is a solution that enables maintaining the technical consistency of the entire suspension system without experimenting with replacements of uncertain characteristics.

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

Additional technical support

When planning broader chassis modifications or improving general vehicle performance, it is worth familiarizing yourself with practical tips regarding working with used components. Expanded information on safely increasing car parameters can be found in the article How to increase engine power: a practical guide to engine tuning with used parts, which helps to better plan the scope of work and select appropriate service solutions.