Description
Mercedes-Benz S-Class W220 Diesel Intercooler Boost Hose is an original intake system component, specifically designed for the diesel engines of this generation. Thanks to its precise fit to the engine bay geometry, it ensures stable boost air delivery, supporting proper turbocharging operation and maintaining the engine’s factory parameters. This is a practical solution for users who want to restore the intake system’s functionality without compromising on compatibility.
Specifications and technical data
- SKU: A2205280782
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2205280782
- Substitutable numbers: A2205280782, A 220 528 07 82, AS
- Fuel type: Diesel
- Category: Hoses, Lines & Pipes
Purpose and Function in the Intake System
The intercooler boost hose in the Mercedes S-Class W220 with a Diesel engine is responsible for a sealed and stable connection between the turbocharger, intercooler, and intake manifold. A correctly selected component:
- maintains proper boost pressure across the entire RPM range,
- minimizes pressure drops on the section from the intercooler to the engine,
- reduces the risk of leaks that could cause power loss and increased fuel consumption,
- supports the correct operation of boost control and emission control systems.
Thanks to its design tailored to the W220 intake system, the hose maintains appropriate rigidity and flexibility, which is important during changes in engine temperature and load.
Construction and Fit for Mercedes-Benz S-Class W220
This part belongs to the Hoses, Tubes, and Pipes group, meaning it’s designed for operation in the demanding engine bay environment. The shape and diameters of the connections are adapted to the factory fittings in the Mercedes S-Class W220, facilitating installation and ensuring proper sealing of connections.
Its original origin from the Mercedes brand translates to compliance with the manufacturer’s factory quality standards, including resistance to exhaust gas temperature, oil, oil mist, and vibrations transmitted from the engine. Using this part allows for a construction consistent with the design of Mercedes-Benz engineers, which is particularly important for precisely tuned diesel engines.
Condition, Application, and Benefits of Replacement
The hose is offered in a used condition, making it a sensible choice for users seeking original components while controlling service costs. Replacing a worn or leaking boost hose in the intercooler system allows for:
- reducing power losses resulting from escaping boost air,
- stabilizing turbo operation and improving throttle response,
- decreasing the risk of boost pressure-related error codes,
- maintaining proper combustion parameters in the diesel engine.
For workshops and private users, this is a practical solution for intake system repairs when preserving the original geometry and compatibility with other components is a priority.
Part Selection by Numbers and Technical Support
The part has a dedicated OEM part number and interchangeable numbers, which facilitates precise identification and selection for a specific Mercedes-Benz S-Class W220 configuration with a diesel engine. If in doubt, it’s worth comparing the markings with the vehicle’s documentation or consulting a mechanic to confirm compatibility with the specific engine version and year.
If you want to better understand how to safely buy used components and how to interpret OEM markings and reference numbers, the guide will be helpful: No More Wrong Purchases – How to Professionally Select Used Car Parts.
Intake System Expansion in Mercedes-Benz
If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as air hoses, vacuum hoses, or intake system pipes, check the available parts in the Mercedes Hoses, Tubes, and Pipes category.





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