Mercedes W212 Diesel OM642 Engine Turbocharger Turbo V6 Part A6420908680

The Mercedes W212 Diesel OM642 Turbo V6 Turbocharger Part is an original supercharger component designed for the V6 OM642 diesel engines in W212 generation E-Class models. This used turbocharger and parts part provides a functional base for professional repair or reconditioning of the turbo system in Mercedes diesel vehicles.

Specifications and technical data

• SKU: A6420908680-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420908680
• Substitutable numbers: A6420908680, A 642 090 86 80
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and technical characteristics

This turbocharger part for the Mercedes W212 with the OM642 engine is part of the supercharging system in the V6 diesel engine. The turbocharger design in this engine increases the amount of air delivered to the cylinders, resulting in higher combustion efficiency, improved flexibility, and stable performance across the entire RPM range.

The component is derived from the original Mercedes supercharger system, maintaining factory exhaust and airflow parameters and being properly matched to the characteristics of the diesel engine. This solution is particularly important in modern diesel engines, where precise control of boost pressure directly impacts engine performance, fuel consumption, and exhaust emissions.

Application in the OM642 V6 diesel engine

The OM642 engine is a six-cylinder Mercedes diesel engine widely used in the W212 E-Class models. In this type of design, the turbocharger operates under demanding thermal and pressure conditions, so using an original part from the same component family is crucial to maintaining:

• stable boost pressure over the full load range,
• proper cooperation with the engine control system and sensors,
• appropriate dynamics of gas response in typical road conditions,
• controlled exhaust emissions in a diesel engine.

Selecting the correct turbocharger part for a specific OM642 version allows you to avoid problems with undercharging or overcharging, engine control errors and excessive load on other exhaust system components.

Condition, origin and benefits of using a used part

This Mercedes Diesel turbocharger part is a used, original equipment component. This type of component provides a good basis for:

• direct replacement of a damaged element in an existing turbocharger,
• regeneration of the supercharging system while maintaining the original specifications,
• service rebuild of the turbocharger in a specialized workshop.

Choosing a used OEM part allows for maintaining the structural integrity of the entire turbocharging system, which is especially important in diesel engines with complex control systems. For many users, this represents a reasonable compromise between repair costs and maintaining near-factory performance.

Why it is worth choosing original turbochargers and parts for Mercedes

In the case of V6 diesel engines, the use of original turbocharger components ensures:

• reliable fit to the specific W212 model and OM642 engine version,
• compatibility with factory engine control maps,
• maintaining appropriate torque characteristics in the low and medium rev range,
• lower risk of operational problems compared to random substitutes.

This is especially important in four-wheel drive vehicles, where even torque development affects the operation of the entire drivetrain. To better understand how the turbocharger system interacts with 4Matic and other AWD systems, it's worth checking out the article "xDrive, 4Matic, quattro, and 4Motion – a comparison of AWDs from BMW, Mercedes, Audi, and VW ," which discusses, among other things, the relationship between engine characteristics and four-wheel drive operation.

Support in selection and additional information

Before purchasing, it's recommended to verify the part's compatibility with your specific engine and body version to ensure full installation compatibility. If in doubt, consult a mechanic or a specialized diesel supercharging service.

If you're also looking for other turbochargers and turbocharger parts for Mercedes, check out our dedicated offer: turbochargers and turbocharger parts for Mercedes . This allows you to easily assemble the set of components needed for a comprehensive repair or regeneration of your car's turbocharger system.