Audi Q7 4M Rear Lower Suspension Control Arm Left Right N/O/S 4M0505311J

Description

Audi Q7 4M Rear Lower Suspension Control Arm Left Right N/O/S is a component from the Control arms and ball joints group, designed for operation in the vehicle’s rear axle. Engineered for installation on either the left or right side at the rear, it supports stable vehicle handling, precise geometry maintenance, and predictable suspension behavior. This used component allows for a technically sound repair of the chassis while maintaining a favorable service budget.

Specifications and technical data

• SKU: 4M0505311J
• Mark: Audi
• Condition: Used
• OEM Part Number: 4M0505311J
• Substitutable numbers: 4M0505311J, 4M0 505 311 J
• Location on the vehicle: Rear, Right, Left
• Part type: Control Arm Kit
• Category: Control Arms, Ball Joints & Assemblies

Purpose and function in the Audi Q7 4M suspension

The presented control arm operates in the rear part of the Audi suspension, where it is responsible for guiding the wheel relative to the body and controlling position changes under dynamic loads. Its placement on the vehicle covers the rear axle, with the possibility of installation on both the right and left sides, which facilitates selection during repair or when replacing a pair of components simultaneously.

Thanks to its precisely selected geometry, the control arm works in tandem with other chassis components, limiting unwanted wheel movement and supporting even tire wear. This is particularly important in a heavy SUV like the Audi Q7, where rear axle stability has a direct impact on ride comfort, traction, and the effectiveness of safety systems.

Benefits of using an original Audi control arm

Using an original control arm in the Audi Q7 4M ensures proper fitment to factory mounting points and compatibility with the stock suspension characteristics. The lack of need for mounting modifications or additional adapters translates into efficient installation and reduces the risk of incorrect geometry alignment.

Key advantages of this solution include:

• maintaining factory vehicle handling characteristics,
• consistent cooperation with other rear suspension components,
• the ability to replace a single control arm or the entire pair on the axle,
• a reasonable compromise between repair cost and component durability.

The used component allows for an economical restoration of the chassis while maintaining a design consistent with the manufacturer’s specifications. It is a good solution both for standard repairs following wear and tear and for restoring the suspension after mechanical damage.

Installation characteristics and rear axle application

The control arm designed for the rear axle of the Audi Q7 4M is engineered to work in demanding conditions – it handles loads resulting from vehicle weight, acceleration, braking, and driving under load. Its placement on the vehicle, covering the rear, right, and left sides, allows the same type of component to be used at different suspension points, which simplifies the service process.

During replacement, it is recommended to check other rear suspension components, such as other control arms, ball joints, and mounting hardware, to restore the consistent operation of the entire system. A correctly installed control arm supports stable vehicle handling in corners, limits uncontrolled toe changes, and improves the car’s predictable response to road irregularities.

Technical support and knowledge about the suspension system

For users who want to better understand how the suspension works and the relationships between shock absorbers, control arms, and stabilizers, a guide describing the principles of operation and maintenance of these elements will be helpful. A detailed discussion can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which explains how to care for key components responsible for safety and ride comfort.

Expansion and modernization of the Audi suspension zone

If you are planning a comprehensive repair or modernization of the suspension zone in your Audi and need other elements from the same group, such as additional control arms, ball joints, or related guiding elements, check the available parts in the Audi control arms and ball joints category.

For renovation or modernization projects that use used components to refresh older models, inspiration can also be found in an article describing scenarios for rejuvenating vehicles using second-hand parts: The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.