BMW F30 LCI 330e B48X Coolant Expansion Tank Bottle 8617047

BMW F30 LCI 330e B48X Expansion Tank 8617047 is an original cooling system component from the expansion tanks category, designed for facelifted BMW 3 Series models. This used expansion tank ensures a factory fit, maintaining proper cooling system operation in the 330e hybrid version with the B48X engine. It's a practical solution for users seeking a proven component at an attractive price.

Specifications and technical data

• SKU: 8617047
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8617047
• Substitutable numbers: 17138617047, 8617047
• Category: Expansion & Overflow Tanks

Intended Use and Fitment for BMW F30 LCI 330e B48X

The presented expansion tank has been specifically designed for the cooling system in the BMW F30 LCI 330e B48X version. This means:

• factory fit for the engine bay in the facelifted F30 body,
• preservation of original hose connector and mounting geometry,
• compatibility with factory cooling system hoses and accessories.

This ensures a predictable installation process, without the need for modifications or adapters.

Technical Characteristics of the Expansion Tank

As a cooling system component, the expansion tank is responsible for pressure stabilization and coolant volume compensation. The OEM design ensures:

• appropriate working capacity tailored to the B48X unit and hybrid system,
• adaptation to typical temperature and pressure ranges for this BMW model,
• compatibility with factory sensors and the pressure cap intended for this reference.

This solution helps maintain stable operating conditions for the engine and its accessories, contributing to safe vehicle operation.

Product Condition and Benefits of Choosing a Used Part

The offered BMW expansion tank comes from the secondary market and is designated as a used OEM part. For many users, this represents a sensible compromise between cost and maintaining the original manufacturer's specifications. Choosing such a component allows you to:

• maintain cooling system consistency with factory BMW solutions,
• reduce repair costs compared to a new part,
• minimize the risk of fitment issues, which are common with aftermarket parts of uncertain origin.

This is a practical option for drivers who expect predictable cooling system performance while preserving the original design.

Why Choose Original BMW Expansion Tanks

Using original BMW expansion tanks is crucial for the durability of the cooling system. Factory components are designed for specific models, ensuring:

• proper system bleeding and stable operating pressure,
• correct hose routing and interference-free placement in the engine bay,
• compliance with service documentation and manufacturer procedures.

For the 330e B48X version, this is particularly important, as the cooling system works in conjunction with both the internal combustion engine and the hybrid drive components.

Other BMW Expansion Tanks and Technical Knowledge

If you are also looking for other BMW expansion tanks compatible with various models of this brand, check out our dedicated category: BMW expansion tanks. You will find a wide selection of OEM components there, making it easier to choose the right solution for your specific engine version.

Are you interested in a broader context of operating and servicing powertrains in premium cars? See the article dedicated to engine accessory maintenance in popular Mercedes models: how to care for engine accessories in Mercedes-Benz C and E-Class. This is valuable supplementary knowledge for those who want to approach part selection and service prevention consciously.