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BMW F20 F21 F30 F31 LCI Coolant Expansion Tank Petrol 8677649
SKU: 8677649
Product from a certified dismantling facility
Condition:
Used
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The BMW F20 F21 F30 F31 LCI Coolant Expansion Tank for Petrol Engines is an original cooling system component, designed specifically for the facelifted 1 Series and 3 Series models. Its factory design ensures proper coolant volume compensation and stable operating conditions for the engine. A used OEM component is a sensible choice for servicing the cooling system in petrol-powered BMW vehicles.
Specifications and technical data
- SKU: 8677649
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 8677649
- Substitutable numbers: 17138677649, 8677649, 17138617044, 8617044, EM, 51335A50486, 3550486, 51337182272, 7182272, 51334869184, 4869184
- Fuel type: Petrol
- Category: Expansion & Overflow Tanks
Intended Use and Compatibility
The BMW expansion tank for F20, F21, F30, and F31 LCI models has been developed for petrol engine cooling systems. Its design meets the requirements of the facelifted F-series platform, ensuring a proper fit with factory mounts, hoses, and the pressure cap.
The component works with the cooling system in accordance with the manufacturer's specifications, maintaining the correct fluid level and enabling safe circulation under both daily driving and more demanding conditions.
Function in the Cooling System
As part of the Expansion Tanks category, this component plays a crucial role in stabilizing the operation of the petrol engine's cooling system. It is responsible for:
- compensating for coolant volume changes at different operating temperatures,
- maintaining a fluid reserve and allowing for easy visual inspection,
- ensuring the correct working pressure within the system,
- reducing the risk of engine overheating.
A well-chosen expansion tank helps maintain a stable engine operating temperature, which contributes to its durability and smooth running.
Product Characteristics and Application Benefits
The offered expansion tank is an original BMW component, meaning it retains factory flow and capacity parameters. A used part allows for an economical yet technically correct repair of the cooling system, without the need for aftermarket alternatives of uncertain specifications.
The main benefits of using this expansion tank in F20, F21, F30, and F31 LCI models with petrol engines include:
- factory fit for the specific generation of BMW cooling system,
- retention of original connection and mounting geometry,
- compatibility with petrol engine operating parameters,
- restoration of proper system function after a failure or leak.
Part Selection by Numbers and Parameters
The component has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification in BMW catalogs and parts selection systems. It is advisable to verify compatibility by the factory number and fuel type to ensure the tank is correct for the specific engine version and model year of the vehicle.
The product's technical description also includes markings that are helpful for comparison with the currently installed tank, minimizing the risk of ordering errors and speeding up the service process.
Condition and Service Application
The offered expansion tank is a used component, intended for installation in place of a worn or damaged part in the petrol engine's cooling system. It is a practical solution for situations where the existing tank shows leaks, cracks, or signs of material fatigue.
Replacing the tank with an original BMW part restores proper cooling system operating conditions, reduces the risk of overheating, and ensures a stable fluid level during daily vehicle use.
If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional tanks, mounting elements, or related cooling system components, check the available parts in the BMW Expansion Tanks category.
If you are interested in safely selecting used consumables and want to better understand what to look for when buying parts from the secondary market, it is worth reading the guide: Second-hand braking systems: how to safely choose discs, calipers, and ABS?.
Delivery details
Ship to: United Kingdom
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Estimated delivery dates include sellers dispatch time, origin postcode,destination postcode and time of acceptance, and will depend on the postage service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
In the automotive store Global Parts, we offer fast and secure deliveries for our customers in United Kingdom, ensuring maximum compliance with local service standards. Each order is processed with the utmost attention, guaranteeing a fluid shopping process and a timely delivery. If you need assistance in choosing the right part, our team of consultants will be happy to help you find the right part for your vehicle and provide information on installation, availability and parameters of the selected components.