Mercedes A207 Turbocharger Housing Part Cover E350 CDI 642838 Diesel A6420901386

Mercedes A207 Turbocharger Housing Part Cover E350 CDI is an original component from the Turbochargers and parts group, designed for Mercedes diesel units. The cover is an important component of the turbocharging system, ensuring proper airflow and stable mounting of turbocharger elements in the front part of the vehicle.

Specifications and technical data

• SKU: A6420901386-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420901386
• Substitutable numbers: A6420901386, A 642 090 13 86, 6NW009543, 6NW 009 543, 763797
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and function of the turbocharger cover

The turbocharger cover in E350 CDI models is responsible for shielding and stabilizing the turbocharging system components that operate under demanding thermal and mechanical conditions. A properly selected part helps maintain the tightness of the turbocharger area, supports proper airflow to the diesel engine, and limits the impact of contaminants from the engine bay.

In the case of Mercedes diesel units, such as the E350 CDI, the appropriate turbocharger cover is important for maintaining the uniform operation of the turbocharging system, which translates into stable torque characteristics and correct response to load.

Placement in the vehicle and installation aspects

The element is designed for installation in the front part of the vehicle, in the engine bay area where the turbocharger is located. Such placement requires a component resistant to elevated temperatures, vibrations, and pressure changes, which is why using an original cover is beneficial for the durability of the entire system.

The cover has been designed for specific Mercedes construction solutions, which facilitates fitting to factory mounting points and cooperation with other diesel engine accessory components. When replacing, it is recommended to pay attention to the condition of the seals and the correct arrangement of wires and covers in the vicinity of the turbocharger.

Technical characteristics in the context of a diesel engine

In diesel engines, such as the units used in the E350 CDI, the turbocharger operates under significant load, and its cover must ensure stable operating conditions. The cover helps in:

• maintaining the proper airflow geometry in the turbocharger zone,
• protecting rotating elements from contaminants from the engine bay,
• reducing local stresses resulting from vibrations and temperature changes.

Thanks to this, the turbocharging system can maintain its parameters in the long term, and the diesel engine operates in more repeatable, predictable operating conditions.

Used condition and benefits of choosing an original element

The offered turbocharger cover is in used condition, which allows for an economical replacement of the element while maintaining the manufacturer's original specifications. In the case of components from the Turbochargers and parts group, choosing an original, used element often represents a reasonable compromise between cost and maintaining factory fitment and operating characteristics.

Before installation, it is worth verifying the compatibility of the part with the specific engine version and comparing the geometry of the mounts and the shape of the cover with the currently installed element. Such an approach minimizes the risk of installation problems and allows for faster restoration of the full functionality of the turbocharging system.

Support with selection and expansion of the turbocharging system

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as turbocharger housings, control actuators, or additional covers, check the available parts in the Mercedes Turbochargers and parts category.

When choosing used turbocharging system elements, it is worth knowing the typical pitfalls associated with tuning and modifications. Practical tips on the safe selection of used components and avoiding the most common mistakes can be found in the article Buying used car parts • Most common mistakes when choosing tuning parts.