BMW F15 Pneumatic Suspension Cable Pipe Air Spring Rear Right O/S 6781223

BMW F15 Pneumatic Suspension Cable Pipe Air Spring Rear Right O/S is a pneumatic suspension component designed for the rear axle on the right side of BMW vehicles. It provides stable body support, maintains the correct ride height, and ensures proper operation of the leveling system, which translates into comfort and predictable vehicle handling.

Specifications and technical data

• SKU: 6850558
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6850558
• Substitutable numbers: 6850558, 37206850558
• Location on the vehicle: Rear, Right
• Tire profile: 65535
• Category: Other Steering & Suspension Parts

Purpose and function in the suspension

The rear right air suspension spring is responsible for transferring loads from the body to the rear axle and for compensating for changes in vehicle load. As a component of the pneumatic system, it works with the compressor and leveling control to maintain proper suspension geometry and stability during acceleration, braking, and driving with a load.

Thanks to its precise fit for the specific mounting position on the vehicle (rear, right side), the air spring ensures proper suspension operation on the passenger side, which is essential for even load distribution and reducing body roll.

Compatibility and mounting parameters

The presented component is dedicated to BMW vehicles equipped with rear air suspension. The placement on the vehicle, defined as the rear right side, facilitates clear identification of the part during selection and installation, minimizing the risk of confusion between the left and right sides.

The product has a defined working profile relative to the tire, which allows it to maintain proper interaction with the wheel and suspension guiding elements. Properly selecting the air spring for a specific vehicle configuration is crucial for maintaining driving stability and the correct operation of driver assistance systems.

Performance characteristics of the component

As a component in the air suspension category, the rear right air spring contributes to:

• maintaining the set body height regardless of the load,
• damping vibrations transmitted from the road surface to the body,
• reducing lateral roll and "nose-diving" during braking,
• vehicle stability when driving with passengers and luggage.

A properly selected and functional air spring allows you to maintain ride comfort at the level intended by the manufacturer, and also supports even wear of tires and suspension guiding elements.

Condition of the component and service application

The offered air suspension spring is a used part, which makes it an attractive service solution in situations where an original component is sought at a more favorable price than a brand-new one. Such components are often chosen for maintenance repairs when the priority is to maintain structural compatibility with the factory suspension system.

Replacement of the rear right air spring is recommended in the event of leaks, visible rubber damage, uneven body height, or leveling system errors. Installation should be carried out by a workshop with experience in air suspension, following bleeding and height calibration procedures.

Expanding knowledge and selecting other components

If you are planning a comprehensive repair or upgrade of the suspension and chassis area in your BMW and need other elements from the same group, such as additional air springs, pneumatic lines, or mounting elements, check the available parts in the Other BMW category.

For a better understanding of the differences between standard and sports suspension configurations and the rationale for using used components in high-performance cars, it is worth reading the article on our blog: BMW M Performance: what is the difference between BMW M components and standard ones?

If you are interested in comparing the suspension and chassis characteristics of various sports models, including the impact on handling and braking, the following material may also be helpful: Audi RS vs other models – what is hidden under the hood and chassis?