Mercedes-Benz E-Class S-Class W211 W220 Air Suspension Airmatic Compressor Unit

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes-Benz E-Class S-Class W211 W220 Air Suspension Airmatic Compressor Unit is a specialized suspension system component designed for the rear axle. It is responsible for generating and maintaining the correct pressure in the air springs, which translates into stable ride height, predictable handling, and driving comfort. Thanks to a design consistent with the factory Mercedes standard, this Mercedes-Benz E-Class S-Class W211 W220 Air Suspension Airmatic Compressor Unit allows for a technically correct system repair without interfering with the vehicle's original architecture.

Specifications and technical data

• SKU: A2113200304-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2113200304
• Substitutable numbers: A2113200304, A 211 320 03 04, BG
• Location on the vehicle: Rear
• Category: Other Air & Fuel Delivery

Purpose and function in the Airmatic system

The described air suspension compressor is dedicated to Mercedes E-Class W211 and Mercedes S-Class W220 models equipped with the Airmatic system. This component operates in the rear of the vehicle, supporting the rear axle suspension circuit and ensuring:

• maintenance of the set ride height regardless of the load,
• vehicle stabilization during acceleration, braking, and high-speed driving,
• proper cooperation with the electronics controlling the suspension modes.

Thanks to the proper efficiency of the compressor, the Airmatic system can react quickly to load changes, which reduces body roll and improves handling predictability.

Construction and vehicle fitment

The Airmatic compressor is designed as a unit ready for installation in the factory-designated location on the rear of the vehicle. The design includes:

• dedicated mounting points to the vehicle structure,
• pneumatic connections matched to the suspension system lines,
• electrical connectors compatible with the wiring in the Mercedes W211 and W220.

Such a solution allows for maintaining the original geometry and suspension operating characteristics, without the need for installation modifications or the use of adapters. In practice, this facilitates installation and reduces the risk of leaks or communication errors with the vehicle's electronics.

Benefits of using the original Airmatic compressor

Using the correct air suspension compressor in a Mercedes E-Class and S-Class brings measurable operational benefits. The most important advantages include:

• Stable suspension system operation – a properly functioning compressor ensures adequate pressure in the air springs, which reduces the risk of the rear of the vehicle "dropping" after parking.
• Better vehicle control – correct pressure in the Airmatic system supports safety systems and affects braking efficiency and the car's behavior in corners.
• Driving comfort on long journeys – the air suspension can maintain optimal height and damping, which reduces fatigue for the driver and passengers.

For users who expect to maintain the characteristic Mercedes comfort, choosing the right Airmatic compressor is crucial from the point of view of durability and the predictability of the entire system's operation.

Product characteristics and service application

The offered element comes from the group of original Mercedes components, which means compliance with factory requirements regarding operating parameters, dimensions, and mounting method. The product is used, making it an economical solution while maintaining proper fitment to the vehicle. It works well both for typical Airmatic system repairs and for comprehensive rear suspension restoration when it is necessary to replace several elements at the same time.

In practice, this compressor will be suitable for workshops specializing in the Mercedes brand and for conscious users who want to restore the full functionality of the air suspension without experimenting with replacements of uncertain parameters.

Related categories and technical materials

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

For a comparison of technical solutions used in sports drive systems and suspensions, as well as to better understand the design differences between standard and sports versions, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the construction of engines, brakes, and chassis in high-performance vehicles.