BMW 5 Series F10 F11 N57 Coolant Hose Pipe 7800104 11537800104

BMW 5 Series F10 F11 N57 Coolant Hose Pipe is an original cooling system component designed for BMW models with the N57 engine, ensuring stable heat dissipation from the power unit. Thanks to its factory geometry and precise fitment for the specific engine configuration, it guarantees a secure connection between the radiator and other system components. It is a practical solution for users who want to maintain structural integrity and reliable cooling system performance in their BMW.

Specifications and technical data

• SKU: 7800104
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7800104
• Substitutable numbers: 11537800104, 7800104, EM
• Category: Other Engine Parts

Purpose and function in the cooling system

The presented coolant hose is a component dedicated to BMW F10 and F11 series vehicles with the N57 diesel engine, where it is responsible for transporting coolant between key system components. A properly selected hose ensures the maintenance of correct fluid flow, which translates into a stable engine operating temperature and reduces the risk of overheating in both city driving and highway conditions.

Thanks to its factory profile and connector diameters, the hose works with original clamps and connectors, which facilitates installation and minimizes the risk of leaks. This is particularly important in N57 engines, where the cooling system operates under significant thermal load.

Construction and fitment for BMW F10/F11 N57

The coolant hose in this configuration has been designed with the specific routing of lines in the BMW F10 and F11 engine bay in mind, taking into account the layout of the radiator, fan shroud, and other hoses. The appropriately selected length and shape of the hose allow for:

• secure hose routing without excessive tension,
• avoiding friction against body elements or engine accessories,
• maintaining the proper bending radius, which promotes free fluid flow.

Its original BMW origin means that the hose complies with the manufacturer's factory quality standards, and its parameters have been adapted to the operating characteristics of the N57 unit. This is a beneficial solution for users who want to maintain factory cooling system properties without compromising on fitment.

Condition, verification, and service application

The item comes from dismantling and is offered as a used part, which allows for an economical repair of the cooling system while maintaining the original BMW specification. This type of component is particularly useful in situations where the existing hose shows signs of wear, such as cracks, loss of flexibility, or localized abrasion.

Replacing the coolant hose is recommended, among other things, in the event of:

• local coolant leaks in the vicinity of the hoses,
• modernization or repair of the cooling system after a failure,
• preventive maintenance in vehicles with higher mileage.

By using an original component, you can reduce the risk of fitment issues often encountered with aftermarket parts of universal geometry.

Benefits of using an original coolant hose

Choosing a coolant hose dedicated to the BMW F10/F11 N57 brings a number of practical operational benefits:

• Compatibility with the factory cooling system – the hose has been designed for specific models and engines, which facilitates installation and ensures proper positioning in the engine bay.
• Stable coolant flow – the appropriate diameter and shape of the hose promote the maintenance of proper pressure and system efficiency.
• Possibility of integration with original connectors – no need for modifications or the use of additional adapters.
• A reasonable compromise between cost and quality – a used OEM component allows for maintaining high technical standards while reducing service expenses.

System expansion and related components

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other elements from the same group, such as additional cooling hoses, connectors, or an expansion tank, check out the available parts in the Other BMW category.

For users interested in comparing technical solutions used in different brands and models, including sports versions with advanced cooling and braking systems, an article describing structural differences in premium cars may be helpful – you can find details in the material Audi RS vs other models – what is hidden under the hood and chassis?.