Mercedes Vito W639 Rear Suspension Air Suspension Spring Bag Left Right N/O/S

Mercedes Vito W639 Rear Suspension Air Suspension Spring Bag Left Right N/O/S is a suspension system component designed for Mercedes vehicles equipped with an Automatic level control system. The air spring operates on the rear axle, on either the left or right side, stabilizing the vehicle height and improving ride comfort under varying loads.

Specifications and technical data

• SKU: A6393280201
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6393280201
• Substitutable numbers: A6393280201, A 639 328 02 01
• Location on the vehicle: Rear, Right, Left
• Category: Self-Levelling Suspension Parts

Purpose and function in the suspension system

The described air suspension spring works with the Automatic level control system, responsible for maintaining the set height of the rear of the vehicle regardless of the number of passengers or cargo weight. It is mounted on the rear axle and can be used on either the left or right side, which facilitates the maintenance of the entire air suspension system in the Mercedes Vito W639.

A properly selected air spring reduces body roll, improves stability during braking and acceleration, and supports even load distribution across the vehicle structure. As a result, the suspension system maintains predictable, repeatable performance parameters, which is important in both fleet applications and daily operation.

Design and technical characteristics

The air suspension spring for the Mercedes Vito W639 has been designed as a component that works with the factory height control system. Its design allows it to operate within the typical working pressure ranges used in this model, ensuring adequate load-bearing capacity and flexibility when the rear axle load changes.

The pneumatic solution allows for smooth adjustment of the suspension characteristics to current conditions – from driving with a light load to intensive operation with a full load. This makes it possible to maintain favorable suspension geometry, which translates into more precise vehicle handling and better tire contact with the road surface.

Vehicle placement and service application

The component is intended for installation on the rear axle and can be used on both the left and right sides. This configuration facilitates the planning of service work – if necessary, you can replace a single air spring or perform a replacement in pairs on the entire rear axle to maintain consistent suspension performance.

When selecting parts, it is worth paying attention to compatibility with the Automatic level control system used in the specific Mercedes Vito W639 unit. A correctly matched air spring minimizes the risk of uneven body leveling and reduces the load transferred to other suspension components.

Condition, origin, and benefits of use

The air suspension spring is offered as a used part, which allows for economical repair of the suspension system while maintaining the original design specifications. Choosing such a solution is particularly beneficial for vehicles that are heavily used, where reasonable service costs are important while maintaining appropriate performance parameters.

Using an original component from the secondary market supports the preservation of the vehicle's factory handling characteristics, while also allowing for cost savings compared to purchasing a new part. This is a practical solution for users who expect predictable operation of the air suspension system in the Mercedes Vito W639.

Service expansion and technical knowledge

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 air springs, components working with the compressor, or parts responsible for leveling, check the available parts in the Automatic level control Mercedes category.

When planning larger service works, it is also worth expanding your knowledge about the vehicle's drivetrain components. A guide on choosing and operating transmissions may be helpful, available in the article Transmission: manual, automatic or DSG – typical faults and a guide to buying a used transmission, which makes it easier to make informed service decisions in a broader context of vehicle operation.