EGR Valve Mercedes W204 W212 OM642 Exhaust Gas Recirculation Part A6421401060

The Mercedes W204 W212 OM642 EGR Valve is a component from the EGR Valves and Parts category, designed for installation in OM642 diesel engines in Mercedes W204 and W212 models. A used exhaust gas recirculation valve allows for the restoration of proper EGR system operation, stabilization of combustion parameters, and reduction of exhaust emissions without the need to invest in a new part. This is a solution for users seeking a proven component at a reasonable service price.

Specifications and technical data

• SKU: A6421401060
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6421401060
• Substitutable numbers: A6421401060, A 642 140 10 60
• Location on the vehicle: Front
• Category: EGR Parts & Valves

Purpose and Function of the EGR Valve in Mercedes W204 / W212

The Mercedes W204 W212 OM642 EGR Valve is responsible for controlled exhaust gas recirculation into the intake manifold, which helps lower combustion temperature and reduce nitrogen oxide emissions. In the OM642 engine, a properly functioning EGR valve is crucial for:

• maintaining stable engine operation across the full load range,
• proper cooperation with the engine control system and emission sensors,
• compliance with the exhaust emission standards specified for the particular model.

This component is installed in the front section of the powertrain, which facilitates service access and reduces disassembly and assembly time in workshop conditions.

Construction and Technical Characteristics

The presented valve belongs to the group of EGR valves and parts dedicated to OM642 units, where the construction must withstand high temperatures and the presence of contaminants in the exhaust gases. The applied geometry of the housing and flow channels is adapted to the specific intake system in Mercedes W204 and W212, ensuring the correct direction and intensity of recirculation.

As a part from the Mercedes offering, the valve has been designed for full compatibility with the factory engine control unit software, meaning that after correct installation, it does not require intervention in the control maps or additional installation modifications.

Benefits of Using a Used OEM EGR Valve

Choosing a used EGR valve for the Mercedes W204 / W212 is a solution that optimizes repair costs while maintaining parameters close to factory specifications. The most significant advantages of this solution include:

• maintaining the original exhaust flow geometry and fit to the OM642 intake manifold,
• no need for mechanical or electrical adaptation compared to aftermarket alternatives with different designs,
• possibility of quick replacement in case of failure of the factory-installed valve.

For workshops and individual users, this means reduced vehicle downtime and a lower risk of compatibility issues that can arise when using parts of uncertain origin.

Professional Installation and Operation

To fully utilize the potential offered by this EGR valve for Mercedes W204 and W212, installation by an experienced service center is recommended, which will ensure:

• correct seating of the valve in the front section of the powertrain,
• leak testing of connections in the intake and exhaust systems,
• verification of proper EGR system operation through computer diagnostics after installation.

An exchange carried out in this manner allows for the restoration of proper engine operating parameters, reduced smoke, and minimized risk of the unit entering limp-home mode due to exhaust gas recirculation system errors.

Other Mercedes EGR Valves and Parts and Repair Time

If you are looking for other Mercedes EGR Valves and Parts for similar applications, check out our dedicated category: Mercedes EGR Valves and Parts. There you will find a wide selection of components tailored to various models of this brand.

Want to learn how the quick availability of used OEM parts affects vehicle downtime in the service center? Read the article: Availability of Car Parts Off the Shelf and Repair Time – How Used OEM Parts Reduce Workshop Stays? to better plan your Mercedes repair and minimize vehicle downtime.