Ford Mondeo Mk4 Focus Mk3 EGR Exhaust Valve 2.0 Petrol 1S7G-9D475-AJ

Visual condition of the part

The product shows signs of use visible in the photos.

Ford Mondeo Mk4 Focus Mk3 EGR Exhaust Valve 2.0 Petrol is an original component from the EGR Valves and Parts group, designed for Ford petrol engines. This used OEM part allows you to maintain the factory performance characteristics of the powertrain, reduce exhaust emissions, and ensure stable operation with the engine control system.

Specifications and technical data

• SKU: 5204549
• Mark: Ford
• Condition: Used
• OEM Part Number: 5204549
• Substitutable numbers: 1S7G-9D475-AJ, 1S7G9D475AJ, 5204549
• Fuel type: Petrol
• Part type: EGR Valve
• Category: EGR Parts & Valves

Purpose and function in the EGR system

The presented valve is part of the exhaust gas recirculation system in a petrol engine and is responsible for precisely directing a portion of the exhaust gases back into the intake manifold. This allows the engine control unit to maintain optimal combustion parameters, which translates into more stable engine operation, reduced engine knocking, and improved refinement under typical load ranges.

For Ford Mondeo Mk4 and Focus Mk3 models with a 2.0 petrol engine, a properly functioning EGR valve is important for:

• maintaining correct exhaust emission values,
• stable idle speed,
• proper throttle response in mid-range RPMs,
• the absence of engine control unit errors related to the exhaust gas recirculation system.

Benefits of using an original EGR valve

Using an original EGR valve from disassembly instead of a worn or faulty component allows you to maintain the factory control logic and exhaust flow characteristics. Unlike cheap replacements, the OEM part is designed for a specific powertrain, which facilitates adaptation in the ECU and reduces the risk of diagnostic errors.

The most important advantages of this solution include:

• factory fit for the petrol engine – no need for installation or mounting modifications,
• consistent cooperation with the engine control unit software,
• preservation of the powertrain's original performance parameters,
• the ability to restore proper EGR system operation after previous issues with errors or limp mode.

Condition and use in service practice

The offered component comes from disassembly and is intended for reinstallation in Ford vehicles with a 2.0 petrol engine that were factory-equipped with this type of EGR valve. This type of part is often chosen in professional workshops as an economical and technically sound solution for repairing the exhaust gas recirculation system.

Replacing the EGR valve is recommended when symptoms such as rough idling, loss of power, increased fuel consumption, or exhaust flow-related errors in the ECU memory occur. Installing an original component allows for restoring proper system operation without the need for software modifications or the use of blanking plates.

Compatibility and part identification

To select the correct EGR valve for a specific Ford vehicle, it is worth verifying the part markings in the service documentation or on the removed component. The product has an OEM number and interchangeable numbers, which facilitates clear identification and matching to a given petrol engine variant.

In the product description in the store, you will also find information such as SKU, OEM part number, interchangeable numbers, brand, condition, and fuel type, presented in the form of a technical specification with appropriate data-option attributes. This makes it easy to compare this valve with other items from the EGR Valves and Parts group and ensure you are choosing the right component.

If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other elements from the same group, such as control valves, EGR modules, or hoses related to exhaust gas recirculation, check the available parts in the Ford EGR Valves and Parts category.

Substantive support and project development

When planning broader modifications or upgrades to your car, it is worth using reliable sources of knowledge regarding the selection of used parts and their impact on vehicle characteristics. A good point of reference may be an article describing how properly selected components can change a car's behavior and what the practical aspects of using parts from disassembly are – you can find them in the material MINI John Cooper Works – what makes it stand out and how to improve your MINI?, which shows an approach to modifications using original subassemblies.

Summary

Ford Mondeo Mk4 Focus Mk3 EGR Exhaust Valve 2.0 Petrol is a practical solution for users and workshops that want to restore the proper operation of the exhaust gas recirculation system in a Ford petrol engine. The original design, fitment for a specific powertrain, and the possibility of direct installation make it a reasonable choice for repairs and servicing of the EGR system, allowing you to maintain stable engine performance and compliance with the manufacturer's factory specifications.