BMW 1 3 Series F20 F21 LCI B37 Diesel Turbo Charge Air Line Pipe Hose 8513848

BMW 1 3 Series F20 F21 LCI B37 Diesel Turbo Charge Air Line Pipe Hose is an original intake system component designed for B37 diesel engines in facelifted BMW F20/F21 models. Thanks to its factory geometry and fitment, it ensures stable airflow to the diesel engine, which promotes proper engine operation and reduces the risk of leaks. This used OEM part is a sensible choice for drivers looking for a proven component at an attractive price.

Specifications and technical data

• SKU: 8513848
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8513848
• Substitutable numbers: 11618513848, 8513848
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The air hose in the B37 diesel engine is responsible for the controlled flow of air between the intake system components. The correct shape and diameter of the hose help maintain the proper pressure and volume of intake air, which translates into stable operation of the turbocharged diesel engine.

In the event of leaks or damage to the hose, power drops, engine control unit errors, or increased fuel consumption may occur. Using an original hose dedicated to the specific configuration of the BMW F20/F21 LCI with the B37 unit helps to mitigate these problems and restore the correct operating parameters of the system.

Advantages of using an original BMW hose

Choosing an original air hose for a BMW diesel engine offers a number of technical benefits:

• factory fitment for the intake system of a specific body and engine version,
• preservation of the correct airflow geometry,
• compatibility with mounts and clamps used in the F20/F21 LCI series,
• reduced risk of incorrect installation compared to universal replacements.

As a result, the hose operates stably under conditions typical for a diesel engine – at elevated temperatures, variable boost pressure, and vibrations transmitted from the power unit.

Part condition and installation aspects

The offered hose belongs to the Lines, hoses and pipes group, which means it is an engine system consumable subject to thermal and mechanical stress. A used OEM part is a good solution when your current hose is cracked, brittle, or deformed, and you want to maintain the factory specifications of the intake system.

During installation, it is worth paying attention to:

• correct positioning of the hose relative to other engine bay components,
• precise seating on the connectors and sockets,
• checking the condition of the clamps and replacing them if they show signs of wear.

Careful installation minimizes the risk of micro-leaks, which in a diesel engine can lead to incorrect sensor readings and a drop in performance.

Part selection and compatibility

To correctly select an air hose for your BMW, it is worth verifying compatibility with the specific facelifted F20 or F21 body version and the B37 power unit. Manufacturer catalog data as well as part numbers and interchangeable numbers assigned to the given component are helpful in this regard.

If you are planning a wider modernization or repair of the intake system, also check other elements from the lines and hoses group available in the Lines, hoses and pipes category, which will make it easier to complete the entire set for a specific diesel engine configuration.

Professional approach to used parts

Choosing a used air hose is a reasonable compromise between costs and maintaining BMW factory specifications. For items such as lines and hoses, it is crucial that they come from a reliable source and are consistent with the original vehicle design. Similar principles of cost-effectiveness and technical condition verification apply to other components, which you can read more about in the article on when it is worth buying a used gearbox and what to look out for.

For diesel car owners who are planning a comprehensive approach to service, guide materials may also be useful – it is worth checking out practical tips on selecting and installing used parts in the drivetrain to better plan service work and avoid unnecessary costs.