BMW 1 3 Series F20 F21 F30 F31 LCI Line Engine Block SCR Module 8579226

BMW 1 3 Series F20 F21 F30 F31 LCI Line Engine Block SCR Module is an original cooling system component from the Lines, hoses and pipes category, designed for use in popular BMW F-series models. This used OEM component ensures factory geometry, correct cross-section, and precise fitment to the connectors and mounts in the engine bay, which translates into stable cooling system operation and safe coolant drainage.

Specifications and technical data

• SKU: 8579226
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8579226
• Substitutable numbers: 11538579226, 8579226, EM
• Category: Hoses, Lines & Pipes

Function and application in the BMW cooling system

The engine water hose in the BMW F-series is responsible for the controlled flow of coolant between key system components – the engine block, radiator, and other parts. A properly selected hose minimizes the risk of engine overheating, leaks, and pressure drops in the circuit. The original design ensures:

• properly shaped hose routing in the engine bay,
• compatibility with factory brackets and mounting points,
• stable connection to cooling system ports.

Benefits of using an original BMW hose

Using an OEM hose instead of a worn-out or non-factory replacement allows you to maintain cooling system performance parameters in accordance with the manufacturer's specifications. In practice, this means:

• secure fitment for the specific engine and body configuration,
• maintaining correct coolant flow under various loads,
• reduced risk of collision with other elements in the engine bay (accessories, wiring harnesses, housings),
• easier diagnostics and future service thanks to compliance with BMW service documentation.

For users who care about the durability of the engine, replacing a worn hose with an original element from the Lines, hoses and pipes category is a sensible service solution.

Product characteristics and fitment

The offered hose is a genuine BMW part, which means it complies with factory quality and manufacturing standards. As a result, proper flexibility, resistance to coolant operating temperatures, and compatibility with original clamps and connectors used in the given system are maintained. The product has an assigned OEM part number and appropriate interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration in service catalogs and parts selection systems.

Before installation, it is recommended to compare the shape and length of the hose with the currently installed element and check the part number compatibility in the vehicle's technical documentation. This approach helps avoid installation problems and ensures proper hose positioning in the engine bay.

Condition, installation, and service recommendations

The item is offered as a used part, which is a cost-effective solution while maintaining factory specifications. Before installation, it is worth checking the condition of the working surfaces, ends, and any quick-connectors, as well as using new hose clamps in accordance with the vehicle manufacturer's recommendations. A properly installed hose should:

• be positioned without excessive tension or twisting,
• not come into direct contact with sharp edges or moving parts,
• maintain adequate clearance from hot exhaust system components.

Such installation preparation reduces the risk of future leaks and extends the trouble-free operation period of the cooling system.

Expanding your BMW cooling system upgrade

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional lines, flexible hoses, or rigid cooling system pipes, check out the available parts in the BMW lines, hoses and pipes category.

If you are interested in the broader context of using used components in cars from the years when the BMW F20, F21, and F30 models were produced, it is worth reading the guide on the renovation and modernization of youngtimer class vehicles – you can find it in the article The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.