Mercedes W204 W222 W213 Exhaust Gas Recirculation EGR Valve C320 CDI A6421402260

Mercedes W204 W222 W213 Exhaust Gas Recirculation EGR Valve C320 CDI is an original component from the EGR Valves and Parts group, designed for the exhaust gas recirculation system in selected Mercedes diesel engine models. This used OEM component allows for maintaining the factory operating parameters of the power unit, supporting stable engine performance and compliance with exhaust emission requirements.

Specifications and technical data

• SKU: A6421402260
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6421402260
• Substitutable numbers: A6421402260, A 642 140 22 60
• Category: EGR Parts & Valves

Purpose and function of the EGR valve

The Mercedes W204 W222 W213 Exhaust Gas Recirculation EGR Valve C320 CDI is responsible for the controlled supply of exhaust gases to the intake manifold, which helps lower combustion temperatures and reduce nitrogen oxide emissions. A properly functioning component in this group contributes to:

• stable engine operation across the full load range,
• correct throttle response and smooth acceleration,
• maintaining exhaust emission parameters at the levels specified by the manufacturer,
• reducing the risk of the engine entering limp mode.

Choosing an original valve from the same Mercedes W204, W222, W213 model family ensures consistency with the factory engine control unit calibration.

Compatibility with Mercedes models

The presented component has been designed to work with the power unit used in, among others, the Mercedes C320 CDI, as part of the exhaust gas recirculation system in the W204, W222, and W213 series bodies. As a result, it can be used both for standard repairs and for replacing a worn valve as part of preventive maintenance.

The original Mercedes origin ensures that the geometry, mounting points, and operating characteristics are consistent with factory specifications, which facilitates installation and integration with the existing intake system and engine management.

Benefits of using an original used EGR valve

Choosing an original, used valve from the EGR Valves and Parts group is a solution that allows for cost control while maintaining the correct operating parameters of the system. In practice, this means:

• better fitment for the specific power unit compared to many aftermarket replacements,
• preservation of factory exhaust flow characteristics,
• reduced risk of adaptation issues within the engine control unit,
• the possibility of economical repair while maintaining the original design of the intake system.

For workshops and individual users, this means predictable installation and greater operational reliability compared to random, low-quality replacements.

Condition, verification, and service application

The item is offered as a used part, which in practice allows for a cost-effective restoration of the exhaust gas recirculation system's efficiency. This type of component is particularly useful for:

• clearing EGR-related errors recorded by the engine control unit,
• repairs following a mechanical failure or valve seizure,
• preventive maintenance in high-mileage vehicles.

It is always recommended to verify the selection of the correct component based on vehicle data and technical markings to ensure full compatibility with the specific engine version.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as valves, control modules, or recirculation system hoses, check out the available parts in the Mercedes EGR Valves and Parts category.

To better plan your purchases and collect original used components for your car repair in one place, it is worth checking out our guide: Comprehensive supply: from the engine to the smallest clip – how to collect used car parts in one place?