Intake Hose BMW G20 G11 G30 Diesel B57 Intercooler Turbo Charge Air Line 8571024

The BMW Diesel B57 intercooler-turbo intake hose is an original equipment component of the turbocharging system, designed for BMW G Series diesel models. It ensures tight and stable compressed air routing between the intercooler and turbocharger, which directly impacts the engine's performance, refinement, and safety.

Specifications and technical data

• SKU: 8571024
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8571024
• Substitutable numbers: 8571024, 11618571024
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and role in the charging system

This intake hose is a component of the Turbocharger and Parts category, responsible for transporting compressed air in the BMW B57 diesel engine. A properly selected and leak-free hose minimizes boost pressure drops, supports stable turbocharger operation, and helps maintain proper combustion parameters in the diesel engine.

The use of an original BMW component in this area is particularly important, as leaks or hose deformations can lead to:

• loss of power and torque,
• increased fuel consumption,
• the appearance of boost pressure errors in the engine control unit,
• accelerated wear of the turbocharger.

Design and fit for the BMW G-series

The BMW Diesel B57 intercooler-turbo intake hose is designed for the specific engines and engine bay geometry of the BMW G20, G11, and G30 models. This means a precise fit with the factory mounts, port diameters, and hose routing within the engine bay, without the need for modifications or adapters.

The original cable design ensures:

• appropriate stiffness while maintaining the flexibility necessary to compensate for vibrations in the drive unit,
• resistance to temperature and pressure typical of supercharged diesel engines,
• compatibility with factory cable ties and quick-release connectors.

B57 Diesel Engine – Operating Requirements

In modern BMW diesel engines, such as the B57, the turbocharger operates under significant thermal and pressure loads. Therefore, the line connecting the intercooler to the turbocharger must be dimensional stable and resistant to the oil and oil vapors present in the diesel engine's intake system.

Replacing a worn or leaking hose with an original part from the same product line allows you to restore:

• correct boost pressure throughout the entire rev range,
• efficient response to gas and smooth engine operation,
• correct operation of exhaust emission control systems.

Condition, origin and benefits of choosing a used part

The intake hose offered is an original BMW production part and is a used part. This means the original geometry, materials, and quality standards of the vehicle manufacturer are maintained. This translates into a reliable fit for the specific engine and body, without the risks associated with universally designed aftermarket parts.

Choosing a used original part is a good idea when:

• the existing cable shows signs of cracks, abrasions or leaks,
• errors related to boost pressure and performance drop appear,
• you want to maintain the consistency of your supercharger system based on OEM components.

How to choose the right intake hose for your BMW

When selecting an intercooler-turbo intake hose for a BMW G20, G11, or G30 diesel engine, it's important to consider compatibility with the engine and turbocharger configuration. It's helpful to compare the shape, diameter, and mounting method with the component currently installed in the vehicle, as well as verify compatibility with BMW service documentation.

If you're considering a more extensive turbocharger upgrade or replacing other components, such as the turbocharger or other pressure lines, a good starting point is to review the entire BMW turbocharger and parts category. You can use the link: BMW turbochargers and parts .

More about used parts and upgrades

If you are interested in a broader context of the use of original, used components in cars of various brands, it is worth checking out our guide in which we discuss which drivetrain and accessory components are most often worth buying second-hand: a guide to the best used car parts .

For a comparison of approaches to upgrading and refreshing sports cars and compacts, you can also check out our article on the popular hot hatch, where we discuss, among other things, the selection of used parts and the impact of design changes on operation: The Evolution of the VW Golf GTI and the Selection of Used Parts .