Mercedes W204 Petrol Fuel Regeneration Pump Purge Valve A0004705493

Mercedes W204 Petrol Fuel Regeneration Pump Purge Valve is a precision fuel system component designed for operation in the front section of a petrol-powered vehicle. As a component from the Fuel pumps and level sensors group, it is responsible for stable fuel flow control, which translates into smooth engine operation and proper interaction with the engine electronics. This used original Mercedes part is a sensible choice for professional repair or maintenance of the fuel system.

Specifications and technical data

• SKU: A0004705493
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004705493
• Substitutable numbers: A0004705493, A 000 470 54 93, KZ
• Location on the vehicle: Front
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The described fuel valve operates within the petrol engine supply area, in the front part of the vehicle. Its task is to control fuel flow within the system so that the pressure and quantity of fuel delivered to subsequent components meet the requirements of the engine control unit. A properly functioning valve helps reduce idle fluctuations, improves engine refinement, and supports the maintenance of stable combustion parameters.

Benefits of using an original fuel valve

Choosing an original Mercedes component ensures proper fitment to the fuel system design in W204 models with a petrol engine. As a result:

• compliance with factory engine control unit settings is maintained,
• the risk of leaks and fuel pressure issues is reduced,
• proper cooperation with other components from the Fuel pumps and level sensors group is maintained,
• the need for additional installation modifications is minimized.

A used, fully functional component of this type allows for an economical yet technically sound repair, especially in the case of advanced petrol systems where the consistency of operating parameters is crucial.

Vehicle placement and installation aspects

The valve is designed for installation in the front part of the vehicle, within the petrol engine supply system zone. This location facilitates service access and allows for efficient diagnostics in case of fuel supply issues. During replacement, it is recommended to:

• thoroughly clean the mounting seat and fuel lines,
• check for leaks after installation,
• verify fuel system operating parameters using computer diagnostics.

Professional installation and adherence to safety procedures when working with petrol fuel are crucial for the trouble-free operation of the entire system.

Integration with the Fuel pumps and level sensors system

As an element from the Fuel pumps and level sensors group, the valve works in conjunction with the fuel pump, lines, and sensors responsible for monitoring fuel quantity and flow. A correctly selected component helps to:

• maintain stable engine supply under various load conditions,
• reduce the risk of air locks or pressure drops,
• maintain predictable engine responses to changes in load and fuel demand.

Thanks to this, the entire fuel system operates in a more consistent manner, which promotes both component durability and driving comfort.

Selection, diagnostics, and technical knowledge

When selecting a fuel valve for a Mercedes W204 with a petrol engine, it is worth using vehicle identification data and manufacturer markings to ensure full compatibility with the factory configuration. For deeper knowledge regarding the operation of the fuel system, diagnostic methods, and the regeneration of components such as pumps or injectors, the following article will be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other elements from the same group, such as supply pumps, pump modules, or fuel level sensors, check the available parts in the Mercedes fuel pumps and level sensors category.

Additionally, to better plan your service and reduce vehicle downtime in the workshop, you can use practical tips describing the impact of a wide range of parts on repair speed, available in the material: how a wide assortment in one warehouse shortens car downtime at the mechanic.