Vacuum Reservoir Mercedes W203 W209 OM611 Air System Box Tank A6110780290

Vacuum Reservoir Mercedes W203 W209 OM611 Air System Box Tank is a specialized component of the vacuum system, designed for Mercedes C-Class W203 and CLK W209 models with the OM611 engine. It is responsible for stable vacuum storage, which translates into predictable operation of vacuum-controlled systems and the vehicle's correct response to driver inputs. Thanks to maintaining the factory design, this is a particularly beneficial solution for users who care about the consistency and reliability of the system.

Specifications and technical data

• SKU: A6110780290
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6110780290
• Substitutable numbers: A6110780290, A 611 078 02 90
• Category: Vacuum Pumps

Purpose and function in the vacuum system

The vacuum reservoir in the OM611 engine acts as a buffer that stores the vacuum generated by the vacuum pump. This enables:

• maintaining a stable vacuum level under variable engine load,
• proper operation of vacuum-controlled components, such as actuators and valves,
• reduction of pressure fluctuations, which lowers the risk of system malfunctions.

As a result, the vacuum system operates in a predictable manner, and the vehicle's reactions remain consistent with the manufacturer's specifications.

Design tailored to Mercedes W203 and W209

The presented reservoir has been designed for integration with the vacuum system in Mercedes W203 and W209 vehicles with the OM611 unit. This means:

• factory mounting points matched to the body and engine bay,
• connection geometry consistent with the original routing of vacuum lines,
• easy integration with the existing vacuum pump and other system components.

Such a fit reduces the need for modifications and allows for maintaining the original architecture of the vacuum system in the Mercedes vehicle.

Benefits of using the original vacuum reservoir

Choosing a vacuum reservoir from the Vacuum pumps group dedicated to Mercedes brings a number of practical advantages:

• maintaining system operating parameters in accordance with the manufacturer's design,
• reduced risk of leaks resulting from component mismatch,
• easier diagnostics – the system remains compliant with Mercedes service diagrams.

For users who want to keep the vehicle in a configuration close to the factory state, this is a technically consistent and predictable solution in operation.

Component condition and installation aspects

The offered vacuum reservoir is an aftermarket component, which allows for an economical repair of the system while maintaining the original design. Before installation, it is recommended to perform a standard leak check and inspect the vacuum lines in the vehicle to ensure consistent operation of the entire system. Installation should be carried out in accordance with the service procedures appropriate for W203 and W209 models with the OM611 engine.

If you are planning a comprehensive repair or upgrade of the vacuum system area in your Mercedes and need other elements from the same group, such as a vacuum pump, vacuum lines, or control valves, check the available parts in the Mercedes vacuum pumps category.

Technical support and part selection

When working with power supply and control systems in modern engines, it is important to correctly distinguish the functions of individual subassemblies – from vacuum elements to fuel system components. To better understand the relationships between these systems, it is worth reading the guide material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

For users interested in maintaining a high standard of vehicle operation at reasonable costs, the article devoted to the advantages of using original aftermarket components may also be helpful: Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?.