Mercedes R231 Control Arm Lower Rear Left Right N/O/S A2313520002

Mercedes R231 Rear Lower Control Arm is a precision component from the Control Arms and Ball Joints group, designed for installation on the left or right side of the rear axle. It is responsible for stable wheel guidance, correct suspension geometry, and predictable vehicle behavior during acceleration, braking, and cornering. This solution is dedicated to users who expect a robust construction and compliance with Mercedes' factory standards.

Specifications and technical data

• SKU: A2313520002
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2313520002
• Substitutable numbers: A2313520002, A 231 352 00 02
• Location on the vehicle: Rear, Right, Left
• Category: Control Arms, Ball Joints & Assemblies

Purpose and Function in the Suspension

The presented rear lower control arm has been specifically designed for the rear axle, with the possibility of installation on both the right and left sides. This solution facilitates suspension servicing and allows for symmetrical replacement of components in case of wear on both sides of the vehicle. The control arm works with ball joints and other suspension components, creating a rigid yet appropriately flexible wheel guidance system.

Thanks to its carefully selected structural geometry, this component helps maintain stable tire contact with the road surface, which translates to:

• more predictable vehicle handling at higher speeds,
• better vehicle control during maneuvers,
• more even tire wear.

Benefits of Using an Original Mercedes Control Arm

A control arm dedicated to the Mercedes R231 series ensures factory-fitment to mounting points and compatibility with standard ball joints and other suspension elements. The absence of the need for modifications or adaptations shortens installation time and reduces the risk of service errors. For the user, this means maintaining the driving characteristics intended by the vehicle manufacturer.

Choosing an original solution from the Control Arms and Ball Joints group also means:

• harmonious suspension operation with safety systems (ABS, ESP, traction control systems),
• easier diagnosis of potential future faults,
• the possibility of correct alignment of toe and camber angles after replacement.

Installation and Operational Characteristics

The rear lower control arm for the Mercedes R231 is designed to operate in demanding road conditions where suspension components are exposed to variable loads, vibrations, and external factors. The control arm's construction has been developed to transfer longitudinal and transverse forces acting on the wheel, while working with ball joints and rubber-metal bushings to dampen vibrations.

After correct installation, it is recommended to perform a professional suspension geometry alignment. This allows for full utilization of the potential of the newly installed component, ensuring stable vehicle handling and optimal tire wear. This approach is particularly important in Mercedes-class vehicles, where the precision of the running gear directly impacts comfort and safety.

Technical Support and Suspension Knowledge Development

To better understand the role of control arms in the entire running gear system and to properly plan suspension servicing, it is worth consulting specialized materials. Practical information on the diagnosis and operation of components such as shock absorbers, control arms, and stabilizers can be found in the article Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers, which discusses issues related to Mercedes models, among others.

Related Items from the Same Group

If you are planning a comprehensive repair or upgrade of the rear axle suspension area in your Mercedes and need other components from the same group, such as additional control arms, ball joints, or connecting elements, check the available parts in the Mercedes Control Arms and Ball Joints category.