BMW E39 M5 Control Arm Swing Part Axle Support Rear Left N/S 2229515

BMW E39 M5 Control Arm Swing Part Axle Support Rear Left N/S is a suspension system component designed for precise axle guidance and wheel geometry stabilization. As part of the Control arms and ball joints group, it is responsible for transferring loads between the body and the rear axle, influencing the car's predictable behavior and handling confidence during dynamic driving.

Specifications and technical data

• SKU: 2229515
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2229515
• Substitutable numbers: 2229515, 33322229515, 2229195, 33322229195
• Location on the vehicle: Rear, Left
• Category: Control Arms, Ball Joints & Assemblies

Purpose and function in the suspension

The presented rear left control arm is designed specifically for the rear axle on the driver's side in the BMW M5 E39 series. It is responsible for maintaining the correct wheel position relative to the body, toe control, and stability during acceleration, braking, and cornering. A properly selected control arm limits unwanted wheel movement, which translates into better grip and more predictable vehicle reactions.

Construction and technical characteristics

The control arm belongs to the group of guide elements integrated with ball joints, which allow for controlled suspension movement in several planes. The construction is adapted to the loads characteristic of the M5 version, where the chassis operates under higher lateral and longitudinal forces. A properly selected arm geometry and mounting points allow for maintaining factory rear axle handling parameters.

As an original BMW component, the control arm is compatible with factory mounting points, which facilitates installation and minimizes the risk of fitment issues. Using the correct component in this part of the suspension helps maintain correct wheel geometry, which is important for both safety and even tire wear.

Condition, fitment, and service application

The offered control arm is a used part intended for service applications in BMW E39 M5 vehicles where replacement of the rear left suspension component is necessary. It is suitable for post-collision repairs, replacing worn guide components, or restoring the car's factory handling characteristics. Using a dedicated control arm helps reduce suspension play and improve handling precision.

For proper part selection, it is worth paying attention to compatibility with the OEM number and interchangeable numbers, which are detailed in the product's technical specification. This ensures that the control arm will work with the other suspension system components in a given vehicle.

Benefits of using the correct control arm

Replacing a worn or damaged control arm with the correct component brings measurable operational benefits:

• more stable vehicle handling at higher speeds,
• better maintenance of rear axle wheel geometry,
• reduction of unwanted play and knocking in the suspension,
• more even tire wear,
• greater confidence in the car's behavior during braking and lane changes.

Selecting the right element from the Control arms and ball joints group has a direct impact on ride comfort, handling precision, and safety, especially in high-performance cars such as the BMW M5 E39.

Technical support and additional materials

To better understand the role of control arms in the entire chassis system and the relationships between shock absorbers, control arms, and stabilizers, it is worth consulting practical guide materials. Extended information on suspension diagnostics and operation can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which discusses key issues related to maintaining suspension efficiency in various car models.

If you are planning a comprehensive repair or upgrade of the rear suspension zone in your BMW and need other elements from the same group, such as additional control arms, ball joints, or guide elements, check the available parts in the BMW Control arms and ball joints category.