BMW F30 F31 F40 Mini F55 F56 Sensor Oil Pressure M10 8647488

BMW F30 F31 F40 Mini F55 F56 Sensor Oil Pressure M10 is an original BMW component, designed for precise monitoring of engine oil pressure in selected BMW F-series and Mini models. Thanks to its factory OEM design, the sensor ensures reliable reading of engine operating parameters and stable integration with the vehicle's electronics.

Specifications and technical data

• SKU: 8647488
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8647488
• Substitutable numbers: 12618647488, 8647488, EM
• Category: Other Engine Parts

Purpose and function of the oil pressure sensor

The oil pressure sensor is responsible for continuous measurement of pressure in the lubrication system and transmitting the signal to the engine control unit and the instrument cluster. In BMW F30, F31, F40 and Mini F55, F56 vehicles, a properly functioning sensor allows for:

• early detection of oil pressure drops and protection of the engine against seizure,
• stable operation of OBD diagnostic systems,
• correct display of warning lights on the dashboard.

By being matched to the specific BMW and Mini platform, this component works with the factory controller software, which reduces the risk of errors and incorrect readings.

Construction, M10 thread and mounting parameters

The presented sensor uses an M10 threaded connection, which allows for its installation in the manufacturer-designated socket in the engine block or lubrication system housing. The body design is adapted to the operating conditions in the engine compartment, including contact with engine oil and variable temperatures.

The OEM solution ensures:

• proper tightness of the threaded connection,
• compatibility with the factory electrical harness,
• stable electrical signal transmitted to the engine control unit.

As a result, the sensor can be used as a replacement for the factory-installed component without the need for any installation modifications.

Benefits of using an original BMW sensor

Choosing an original oil pressure sensor for BMW and Mini translates into a number of practical operational benefits:

• consistency with the factory calibration of the engine control unit – no need for adaptation or software modifications,
• maintaining the correct logic of warning lights and service messages,
• reduced risk of false errors related to oil pressure,
• easier diagnostics at the service center due to compliance with manufacturer documentation.

This solution is particularly recommended for professional engine repairs, where parameter repeatability and predictable behavior of the lubrication system are essential.

Condition, verification and service application

The item is offered as a used OEM component, which allows for economical repair while maintaining the original manufacturer's specifications. This type of sensor is suitable both for standard replacement of a damaged part and during more extensive service work within the engine, e.g., after an overhaul or when diagnosing oil pressure issues.

Due to the specifics of the lubrication system, installation by a person with experience in working with BMW and Mini units is recommended, ensuring the correct tightening torque and checking for leaks after starting the engine.

Service expansion and related components

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional sensors, harness elements, or small mounting components, check the available parts in the Other BMW category.

For more advanced tuning or comparative projects, e.g., analyzing differences in the construction of engines and equipment between standard and sports versions, the material describing the characteristics of more powerful variants may be helpful – see the article Audi RS vs other models – what is hidden under the hood and chassis?, which organizes issues related to the engine, brakes, and chassis in the context of part selection.