Mercedes W203 W204 W210 Fuel Regeneration Pump Purge Solenoid Valve A0004703893

Description

Mercedes W203 W204 W210 Fuel Regeneration Pump Purge Solenoid Valve is an original fuel system component responsible for precise control of fuel vapor flow between the tank and the intake manifold. Thanks to the factory Mercedes design, the solenoid valve works with the EVAP system, supporting stable engine operation, proper combustion, and reduced vapor emissions. It is a practical solution for users looking for a proven OEM component for professional repair or diagnostics of the fuel system.

Specifications and technical data

• SKU: A0004703893
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004703893
• Substitutable numbers: A0004703893, A 000 470 38 93
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Function of the fuel vapor purge solenoid valve

The fuel vapor purge solenoid valve in Mercedes W203, W204, and W210 models operates within the tank ventilation system, controlling the amount of fuel vapors directed to the intake manifold. A properly functioning valve:

• ensures controlled discharge of gasoline vapors from the carbon canister,
• supports stable idle speed and smooth engine operation,
• reduces the risk of diagnostic errors related to the EVAP system,
• helps maintain compliance with exhaust emission standards.

Thanks to precise electromagnetic control, the solenoid valve reacts to engine control unit signals, opening and closing under strictly defined operating conditions.

Purpose and compatibility

The presented solenoid valve is dedicated to Mercedes cars with gasoline engines, particularly the W203, W204, and W210 series. Using an original solution from this model group allows for maintaining the factory characteristics of the fuel system and full compatibility with the vehicle’s electronics.

The element belongs to the Fuel pumps and level sensors group, which means it is part of the broadly defined fuel supply and control system, working with other components responsible for storing, dosing, and monitoring gasoline.

Benefits of using an original solenoid valve

Using a factory fuel vapor purge solenoid valve in a Mercedes brings a number of practical operational benefits:

• Stable gasoline engine operation – proper fuel vapor control reduces idle fluctuations and improves engine performance.
• Better ECU compatibility – the original valve is adapted to the engine control unit’s algorithms, which reduces the risk of fault codes appearing in the memory.
• Emission optimization – an efficient EVAP system reduces the emission of volatile fuel compounds into the atmosphere.
• No need for installation modifications – factory connectors and geometry speed up assembly.

This solution is especially recommended for professional repairs, where parameter repeatability and compliance with the manufacturer’s service documentation are important.

Characteristics of the used element

The offered solenoid valve comes from the used OEM parts group, which in practice means factory construction and fitment for the Mercedes installation, while providing savings compared to a new component. For many users and workshops, this is a reasonable compromise between repair costs and maintaining the original technical specifications of the fuel system.

To better understand when it is worth choosing used electronics and control elements in a car, you can use the practical tips described in the article: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

Support in selection and additional information

When selecting a fuel vapor purge solenoid valve for a specific body and engine version, it is crucial to verify compatibility with the given Mercedes gasoline system. In case of doubt, it is worth comparing mounting parameters and fuel type to ensure full compatibility with the existing installation.

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

More arguments for choosing original components from the secondary market can be found in the guide: 5 reasons why a used OEM part is a better choice than a replacement.