Mercedes W177 Vacuum High Pressure Valve A2474701402

Mercedes W177 Vacuum High Pressure Valve is an original component of the vacuum control system in the Air and fuel intake sensors group, designed for use in Mercedes W177 series vehicles. This used OEM component allows for maintaining factory engine performance parameters, stable vacuum control, and proper integration with the vehicle's electronics.

Specifications and technical data

• SKU: A2474701402
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2474701402
• Substitutable numbers: A2474701402, A 247 470 14 02
• Category: Air Intake & Fuel Sensors

Purpose and function of the vacuum valve

The vacuum valve in Mercedes W177 models is responsible for precise control of vacuum flow in systems related to air and fuel intake. A properly functioning component of this type:

• supports stable engine operation across various load ranges,
• ensures proper engine response to changes in RPM and load,
• maintains compliance of operating parameters with the maps stored in the engine control unit.

By maintaining the original control characteristics, the Mercedes W177 Vacuum High Pressure Valve helps reduce the risk of errors in the intake system and incorrect readings from sensors related to air and fuel flow.

Benefits of using an original Mercedes component

Choosing a used, original Mercedes vacuum valve is a solution that combines technical correctness with reasonable service costs. Key advantages include:

• factory fitment for W177 models – no need for wiring or mounting modifications,
• preservation of operating parameters specified by the vehicle manufacturer,
• consistent cooperation with the engine control system and other elements from the Air and fuel intake sensors group.

By using an original component, you minimize the risk of compatibility issues that may occur with aftermarket parts of uncertain specifications. This is particularly important in modern engines, where stable vacuum control has a direct impact on engine refinement.

Product condition and service application

The presented vacuum valve is an aftermarket component, which allows for economical system repair without sacrificing the original design. This type of part is suitable in situations where:

• the existing valve causes diagnostic errors related to the intake system,
• there are unstable idle speeds or power drops,
• replacement of the component is necessary as a preventive measure during major engine service.

Selecting the valve according to the OEM number or interchangeable numbers allows for full compatibility with the specific vehicle configuration, which is especially important in modern control systems.

Integration with the air and fuel intake system

As part of the Air and fuel intake sensors group, the vacuum valve works with other elements responsible for measuring and regulating air and fuel flow. A properly selected and functional valve:

• facilitates maintaining the correct mixture composition under various driving conditions,
• limits the risk of errors related to incorrect system pressure,
• supports the proper operation of emission control systems.

In practice, this translates into more predictable vehicle behavior, better throttle response, and stable cooperation with the OBD diagnostic system.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as control valves, pressure sensors, or flow regulation components, check the available parts in the Mercedes Air and fuel intake sensors category.

Technical support and selection by OEM number

When selecting a vacuum valve for a Mercedes W177, it is crucial to use the manufacturer's markings and reference numbers to avoid installation errors. Proper part identification allows you to:

• ensure full compatibility with a specific engine version,
• minimize the time required for installation and configuration,
• avoid ECU error issues after component replacement.

To better understand the relationships between fuel and intake system components and to correctly select parts by OEM number, it is worth consulting the guide Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses diagnostics, part selection, and operating principles.