Mercedes W164 W204 C209 C219 Air Intake Line Seal Clean Turbocharger A6420940080

Mercedes W164 W204 C209 C219 Air Intake Line Seal Clean Turbocharger is a precision component from the Gaskets and sealing rings group, designed to ensure a tight connection between the intake system and the turbocharger. A properly selected seal helps maintain stable engine performance parameters, reduce boost pressure drops, and minimize the risk of leaks in critical areas of the forced induction system.

Specifications and technical data

• SKU: A6420940080
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420940080
• Substitutable numbers: A6420940080, A 642 094 00 80
• Category: Gaskets, Seals & O-Rings

Purpose and technical function

The offered turbocharger intake seal is designed for use in selected Mercedes models from the W164, W204, C209, and C219 families. Its task is to provide a tight connection between the intake system components and the turbocharger, which directly impacts:

• maintaining proper boost pressure across the entire RPM range,
• reducing air loss in the intake system,
• stable engine operation under load,
• reducing the risk of blow-by and unwanted noise around the turbocharger.

A well-fitted seal in this location is crucial for the proper operation of the turbocharger and for maintaining consistent engine performance parameters.

Design characteristics

The turbocharger intake seal has been designed as a component matched to the factory geometry of the intake system in the mentioned Mercedes generations. The appropriate shape and profile of the sealing edges allow for even pressure on the contact surfaces, which helps maintain tightness even under varying operating temperatures and pressures.

In practice, this means:

• secure seating in the housing without the need for additional modifications,
• stable sealing performance under dynamic driving conditions,
• reduced risk of leaks during frequent changes in engine load.

The element belongs to the Gaskets and sealing rings group, which emphasizes its specialized role in protecting the intake system from loss of tightness.

Part condition and practical assembly aspects

The presented seal is a used part, which in practice offers an attractive compromise between purchase cost and functionality. For many users and workshops, choosing such a solution is a way to perform an economical repair while maintaining compliance with the vehicle's factory specifications.

In the context of assembly, it is worth paying attention to:

• thorough cleaning of the contact surfaces before installation,
• checking the condition of mating components (flanges, connectors, clamps),
• using the correct tightening sequence, in accordance with service procedures.

This approach allows for fully utilizing the potential of the seal and limiting the risk of needing to re-intervene in the intake system.

Service application and cost optimization

For workshops specializing in Mercedes maintenance, the Mercedes W164 W204 C209 C219 Air Intake Line Seal Clean Turbocharger represents a practical solution for repairs related to the forced induction system. Replacing the seal is often recommended whenever working around the turbocharger, dismantling intake pipes, or diagnosing leaks.

Choosing a used part allows you to:

• lower the cost of the entire repair while maintaining the original design specifications,
• maintain consistency of components used within one manufacturer,
• keep budget flexibility during larger service jobs.

If you are planning a broader modernization or repair of the intake system, it is worth checking out other items from the sealing group available in the Gaskets and sealing rings category to complete a full set of necessary parts.

Why consider used parts

More and more drivers and workshops are consciously choosing components from the secondary market, especially for premium brands. Used elements, such as the described turbocharger intake seal, can be a sensible choice when you want to combine functionality with cost control. An additional benefit is the environmental aspect – reusing parts reduces waste and decreases the demand for new raw materials.

If you want to better understand when purchasing used components makes the most sense, it is worth reading the guide: is it worth investing in used parts and what benefits can be gained from it. You will find practical tips there that help in making informed purchasing decisions.

Summary

Mercedes W164 W204 C209 C219 Air Intake Line Seal Clean Turbocharger is a technically matched component from the sealing group, designed to work in the demanding environment of the forced induction system. A properly installed seal supports the maintenance of correct boost pressure, stabilizes engine operation, and helps reduce the risk of leaks in the critical turbocharger area. It is a practical choice for users and workshops looking for a functional solution consistent with the design characteristics of Mercedes models from the W164, W204, C209, and C219 families.