BMW 5 7 Series E60 E65 Water Radiator Automatic 525d 530d 730d M57N 2248478

BMW 5 7 Series E60 E65 Water Radiator Automatic 525d 530d 730d M57N is an original cooling system component designed for BMW vehicles equipped with the M57N engine and an automatic transmission. It enables stable heat dissipation from the power unit and the associated transmission, which promotes safe and predictable operation of the entire drivetrain. This used OEM component is a sensible choice for drivers looking for a technically matched solution without the need to invest in a new part.

Specifications and technical data

• SKU: 2248478
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2248478
• Substitutable numbers: 17112248478, 2248478
• Gearbox type: Automatic
• Category: Caps

Purpose and compatibility

The presented radiator is dedicated to 5 and 7 Series models, such as the BMW E60, E65, and the 525d, 530d, and 730d versions with the M57N unit. The design, intended for use with an Automatic transmission, ensures appropriate thermal conditions for both the engine and the automatic gearbox, which is important for long-term operation and driving under varying load conditions.

Construction and function of the cooling system

In this application, the radiator is responsible for efficient heat exchange between the coolant and the air flowing through the core. A properly designed working surface and flow channels allow for maintaining a stable operating temperature for the M57N diesel engine, which reduces the risk of overheating and promotes smooth unit operation.

In the case of versions with an automatic transmission, it is particularly important to maintain the proper temperature range for the transmission fluid. Using a dedicated automatic transmission radiator helps to:

• maintain predictable transmission operation under variable loads,
• reduce the risk of degraded gear shifting quality at high temperatures,
• increase the durability of components working within the drivetrain.

Benefits of using an original BMW radiator

The original radiator designed for BMWs with the M57N engine and automatic transmission ensures a perfect fit with the factory mounting system and existing installation. As a result, installation is predictable, without the need for structural modifications. Maintaining factory geometry and flow rates translates into stable cooling system performance and consistency with the vehicle manufacturer's specifications.

Choosing a used OEM component is beneficial for users who expect:

• compatibility with the factory cooling system and automatic transmission,
• preservation of the original thermal characteristics of the M57N unit,
• a reasonable compromise between cost and component quality.

Condition and service application

The radiator falls under the Covers category, but functionally it serves as a cooling system component in BMW vehicles with an automatic transmission. The product is in Used condition, meaning it has been previously operated but can still be used as a replacement part in the service or repair process. This solution is particularly useful when restoring vehicle functionality after mechanical damage or a cooling system failure.

Support with selection and additional information

Before purchasing, it is worth verifying the radiator's compatibility with the specific engine version and vehicle equipment, especially in the context of the automatic transmission used. Vehicle identification data and information about part numbers and interchangeable numbers, which are included in the product's technical specification, may be helpful.

If you are planning a comprehensive repair or upgrade of the body area in your BMW and need other elements from the same group, such as covers, overlays, or additional trim, check the available parts in the BMW Covers category.

To compare how premium manufacturers approach the quality of used parts and service cost optimization, you can read the article Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?, which discusses the advantages of using original components from the secondary market in luxury cars.