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

The Mercedes E-Class S-Class W211 W220 Air Suspension Airmatic Compressor Unit is an original suspension system component designed for rear axle installation. As a dismantled part from the Mercedes brand, it ensures consistency with the vehicle's factory design and maintains the proper operating parameters of the Airmatic system, which translates into stable handling and ride comfort.

Specifications and technical data

• SKU: A2113200304
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2113200304
• Substitutable numbers: A2113200304, A 2113200304, A 211 320 03 04, BG
• Location on the vehicle: Rear
• Category: Disabled Vehicle Parts

Purpose and function in the Airmatic system

The described compressor is the component responsible for generating pressure in the Airmatic pneumatic suspension system on the rear axle. In E-Class and S-Class vehicles of the W211 and W220 series, it is responsible for:

• maintaining the set vehicle height regardless of the load,
• stabilizing the vehicle during acceleration, braking, and high-speed driving,
• cooperating with the electronics controlling comfort modes and stiffer suspension settings.

Thanks to maintaining the original design, the pneumatic system operates in a predictable manner, which is particularly important in premium class cars where precision of response and passenger comfort are paramount.

Compatibility and vehicle fitment

The compressor has been designed specifically for Mercedes E-Class W211 and Mercedes S-Class W220 models equipped with Airmatic suspension. Its placement at the rear of the vehicle allows for optimal routing of pneumatic lines and limits the transmission of vibrations to the body.

As a component originating from the same design family as factory parts, the compressor ensures:

• correct mounting points to the chassis,
• compatibility with factory electrical and pneumatic connectors,
• cooperation with the original suspension controller without the need for installation modifications.

Characteristics of the used Mercedes part

The presented compressor comes from a dismantled Mercedes vehicle. A used component of this type is often chosen as a reasonable alternative to new parts, especially in the case of advanced pneumatic suspension systems where the cost of new elements is high.

In practice, this means the ability to restore the efficiency of the Airmatic system while maintaining a favorable cost-to-effect ratio. For users who want to better understand the specifics of purchasing second-hand parts, the following expert guide may be helpful: why it pays to choose used powertrain components and how to safely select parts by OEM numbers.

Benefits of using an original Airmatic compressor

Using an original air suspension compressor in a Mercedes E-Class or S-Class brings a number of practical benefits:

• Consistency with factory design – maintaining the suspension operating characteristics intended by the manufacturer.
• Correct operation of the leveling system – proper cooperation with height sensors and the suspension controller.
• Reduced risk of electronic errors – lower probability of suspension failure messages resulting from incompatible aftermarket replacements.
• Driving stability – maintaining appropriate rear axle stiffness, which affects safety when driving with a load or at higher speeds.

An additional advantage of choosing a dismantled part is the environmental and economic aspect. If you are interested in how the use of used components fits into the idea of a circular economy, check out the article: how used parts from dismantling support environmental protection and reduce car operating costs.

Summary of application in Mercedes E-Class and S-Class

The Mercedes E-Class S-Class W211 W220 Air Suspension Airmatic Compressor Unit is a technically matched element of the rear suspension system, allowing for the restoration of proper pneumatic system operation. Choosing an original, used Mercedes part enables the maintenance of high ride comfort and handling stability while simultaneously reducing repair costs.