BMW 5 6 Series E60 E61N LCI E63 E64 Expansion Tank Radiator Petrol 2282735

BMW E60 E61N LCI E63 E64 Expansion Tank is an original cooling system component designed for BMW cars with gasoline engines. It ensures stable operation of the coolant circuit, which translates into safe thermal conditions for the power unit. A used expansion tank is an economical solution, while also being technically matched to the specifics of higher-class BMW models.

Specifications and technical data

• SKU: 2282735
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2283345
• Substitutable numbers: 17112283345, 2283345, 17112282735, 2282735
• Weight: 150
• Fuel type: Petrol
• Category: Other Interior Parts & Accessories

Purpose and Function in the Cooling System

The expansion tank in BMW E60, E61N LCI, E63, and E64 models is responsible for compensating for changes in coolant volume and maintaining stable pressure in the system. A correctly selected component allows for:

• maintaining the correct coolant level across the entire engine operating temperature range,
• reducing the risk of the power unit overheating,
• efficient cooperation with the pressure cap and cooling system hoses,
• easy coolant level monitoring thanks to the transparent body design (depending on the factory version).

Choosing a tank dedicated to gasoline engines ensures compliance with the operating parameters specified by the manufacturer and proper routing of hoses and connection spigots.

Compatibility and Fit for BMW

The presented tank has been specifically designed for the engine bay architecture of the 5 Series (E60, E61N LCI) and 6 Series (E63, E64). This means:

• factory mounting points,
• compatible connection spigot layout,
• correct routing of cooling hoses in the engine bay,
• easy integration with existing accessories.

This ensures a predictable installation process, without the need for modifications or the use of non-factory adapters. Original BMW design helps maintain the factory reliability of the cooling system.

Characteristics of a Used Part

The offered expansion tank is a used component, which helps reduce service costs while maintaining compliance with factory specifications. This type of part is particularly attractive for workshops and users who:

• are restoring the original vehicle configuration,
• are looking for parts with proven geometry and fit,
• want to avoid compatibility issues with low-quality aftermarket parts.

Choosing a tank with the appropriate weight and construction is important for the durability of mountings and resistance to vibrations in the engine bay. Using a component consistent with the BMW design helps maintain the stability of the entire cooling system.

Significance of OEM Number and Interchangeable Numbers

Verification of the expansion tank's compatibility with a specific car is primarily done through the OEM part number and its associated interchangeable numbers. This allows for precise matching of the component to the engine version, year of manufacture, and equipment configuration. In practice, this means:

• a lower risk of purchasing a part that doesn't fit,
• easier identification of the component in BMW catalogs,
• the ability to quickly compare with the currently installed tank.

The product description includes both the OEM number and reference numbers, which facilitates the work of service centers and individuals ordering parts based on technical documentation.

Support with Selection and Additional Resources

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other parts from the same group, such as coolant hoses, radiators, or pressure caps, check the available parts in the Other BMW category.

When comparing solutions used in different makes and engine versions, the material discussing the construction of power units and chassis in high-performance cars may be helpful – details can be found in the article Audi RS vs. Other Models – What's Under the Hood and Chassis?.

If you want to streamline the process of purchasing components such as an expansion tank and other cooling system components in used condition, it is worth using the practical tips contained in the guide Safe Online Purchase of Used Car Parts – Step-by-Step Guide, which discusses, among other things, selection by OEM number and verification of part condition.