Description
BMW F20 F21 X3 F25 F30 F31 F32 N47N xDrive Engine Oil Sump Pan is an original component from the Oil sumps group, designed for BMW diesel units with xDrive all-wheel drive. This used OEM part ensures a factory-fit for the N47N diesel engine, which simplifies maintenance and reduces the risk of compatibility issues.
Specifications and technical data
- SKU: 7809122
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 7809122
- Substitutable numbers: 7809122, 11137809122
- Fuel type: Diesel
- Category: Oil Sumps
Purpose and compatibility
The oil sump has been designed for use in BMW N47N series diesel engines equipped with xDrive in F20, F21, X3 F25, F30, F31, and F32 models. The OEM design guarantees a proper fit with the engine block, lubrication system, and mounting points, which is crucial for maintaining correct oil pressure and system tightness.
Using an original oil sump in a diesel engine allows for maintaining the operating parameters designed by the manufacturer and facilitates service operations, including oil changes and inspection for potential leaks.
Construction and function in the lubrication system
The oil sump in a diesel engine acts as a working reservoir for lubricating oil and as a component that works with the oil pump suction system. In the case of N47N units with xDrive, its shape and geometry are adapted to the drive shaft path and suspension components, which requires the use of a properly formed OEM part.
A properly selected oil sump helps to:
- maintain a stable oil level under various driving conditions,
- ensure proper supply to the oil pump,
- minimize the risk of cavitation and lubrication interruptions,
- maintain the tightness of the connection with the engine block and seal.
As a result, the lubrication system operates in a predictable manner, which is important for the durability of the power unit, especially in diesel engines operated under higher loads.
Condition, origin, and advantages of using OEM parts
The offered oil sump is a used component sourced from dismantling, which allows for combining a cost-effective purchase with the preservation of factory specifications. Original BMW manufacturing means compliance with the manufacturer’s requirements regarding material, shape, and placement of mounting points, which facilitates installation and interaction with other lubrication system components.
Choosing a used OEM part is particularly beneficial for maintenance repairs, such as mechanical damage to the sump (impacts, corrosion, leaks), when maintaining factory geometry and a secure fit without the need for modifications is a priority.
Installation and operating tips
When replacing the oil sump in an N47N diesel engine with xDrive, it is worth paying attention to:
- thorough cleaning of the contact surface with the engine block,
- using the appropriate sealant in accordance with the manufacturer’s recommendations,
- checking the condition of the mounting bolts and their proper tightening torque,
- checking for leaks after the first engine start and a short test drive.
This approach helps to reduce the risk of oil leaks and ensures stable operation of the lubrication system in the long term.
If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as other sumps, covers, or elements related to the oil circuit, check the available parts in the BMW Oil sumps category.
Additional technical support
When selecting components for diesel engines, it can be helpful to understand how the entire fuel supply and lubrication system works. In this context, it is worth reading the material describing the diagnostics and operation of fuel supply components – you will find it in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which facilitates a holistic approach to servicing diesel units.
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