Mercedes W251 Air Suspension Tank Reservoir A2513200015

Mercedes W251 Airmatic Air Tank A2513200015 is a component of the pneumatic suspension system, designed for R-Class W251 models. A used Airmatic system air tank allows for the restoration of proper pneumatic suspension operation, ensuring stable working pressure and correct cooperation with the compressor and air springs. This is a solution for users looking for a technically matched component at a reasonable price, while maintaining the specifics of the original Mercedes design.

Specifications and technical data

• SKU: A2513200015
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2513200015
• Substitutable numbers: A2513200015, A 251 320 00 15
• Category: Expansion & Overflow Tanks

Purpose and Function in the Airmatic System

The air tank in the Airmatic system plays a crucial role in stabilizing the pressure within the pneumatic suspension. It is responsible for:

• storing compressed air supplied by the compressor,
• assisting in the suspension's rapid response to changes in vehicle load,
• limiting the frequency of compressor engagement, which affects its durability,
• maintaining the correct vehicle body level under various driving conditions.

Thanks to the use of an original design dedicated to the W251, the tank retains the correct geometry, mounting points, and operating parameters required by the Airmatic control system.

Benefits of Using an Original Air Tank

Using a component that matches the factory specification brings tangible operational benefits:

• Full compatibility with the Airmatic suspension system – fits factory lines, valves, and mountings.
• Stable operation of the compressor and distribution valves due to the tank's appropriate working capacity.
• Reduced risk of suspension system errors related to incorrect pressure or excessive compressor operation.
• Restoration of the suspension's correct operating characteristics without modifying the control unit software.

By choosing an Airmatic air tank for Mercedes W251, you are investing in a component designed specifically for this model, which facilitates installation and reduces the risk of fitting issues.

Assembly and Operational Characteristics

This element belongs to the category of Expansion Tanks, but in this case, it functions as a compressed air reservoir in the suspension system. The design is intended for operation under variable pressure and temperature conditions, typical for pneumatic systems in premium cars.

When replacing, it is recommended to:

• check the tightness of the pneumatic lines leading to the tank,
• verify the condition of the Airmatic compressor and control valves,
• inspect the mounting and any vibration damping elements.

A properly selected and correctly installed tank helps maintain uniform pressure distribution in the system, which translates to predictable vehicle behavior during acceleration, braking, and loaded driving.

Application in Mercedes Vehicles

The product is designed for Mercedes vehicles from the W251 series equipped with Airmatic suspension. By maintaining the original geometry and operating parameters, the tank works with the factory suspension control unit, leveling sensors, and other system components.

This solution is particularly useful in situations where symptoms such as frequent compressor engagement, uneven body level after parking, or error messages related to pneumatic system pressure occur. Replacing the tank with a functional component often resolves these issues without the need to intervene in more expensive sub-assemblies.

If you need other pneumatic system components related to the storage and stabilization of the working medium in vehicles of this brand, check the available parts in the Mercedes Expansion Tanks category.

Technical Support and Additional Information

Before purchasing, it is advisable to compare the parameters of your current component with the technical data in the specifications, especially regarding compatibility with your body version and installed suspension system. If you have doubts about selecting the component for a specific vehicle configuration, practical tips on operating and replacing suspension components may be helpful.

To better plan your car's service and avoid unnecessary costs, it is worth reading the guide: TOP 10 Most Frequently Replaced Parts in Your Car, which will help you prioritize when replacing wear parts.