BMW 1 3 4 F20 F21 LCI F30 F31 F32 Oil Pan Sump Level Sensor Indicator 8638755

BMW F20 F21 LCI F30 F31 F32 Oil Level Sensor is an original part from the BMW group, designed for precise monitoring of the engine oil level. The sensor works with the vehicle's factory electronics, providing the driver with clear information about the lubrication status and helping to protect the powertrain from operating with too low an oil level. A used OEM part is a sensible choice for those looking for a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 8638755
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8638755
• Substitutable numbers: 12618638755, 8638755, 12617638343, 7638343, BG
• Category: Oil Sumps

Purpose and Compatibility with BMW Models

The BMW Oil Level Sensor is designed to work with popular F-series models such as F20, F21 LCI, F30, F31, and F32. The OEM construction guarantees correct positioning in the oil pan and proper cooperation with the factory engine control system. This eliminates the need for installation modifications or additional adapters after fitting.

The part belongs to the Oil Pans category, meaning it is an integral part of the lubrication system and is responsible for real-time oil level readings without the need for manual dipstick checks. This is particularly important in modern powertrains where oil level control is primarily electronic.

Construction and Operating Principle of the Oil Level Sensor

The sensor is mounted directly in the oil pan, in a location designated by the manufacturer. Its task is to continuously measure the oil quantity and transmit the signal to the engine control unit and the instrument cluster. This allows the driver to receive a warning about a critically low oil level well in advance, thus preventing costly damage.

The OEM solution ensures:

• correct cooperation with the factory control unit software,
• stable oil level readings under various engine operating conditions,
• resistance to temperature and contact with engine oil.

Benefits of Using an Original BMW Sensor

Using an original sensor to replace a damaged or malfunctioning one restores proper oil level monitoring. This translates into several practical benefits:

• Safer Engine Operation – the control unit receives reliable data on oil quantity, reducing the risk of operating with insufficient lubrication.
• No Errors or Warning Messages resulting from incorrect sensor readings.
• Full Compatibility with the Electrical System – the connector and mounting method are consistent with the original BMW design.

A used OEM part is a good solution for drivers who want to maintain the original vehicle specification while optimizing repair costs.

Condition, Verification, and Practical Application

The offered sensor is a used part, meaning it has been previously in use but is suitable for further service after proper installation. Such parts are often chosen by workshops specializing in the BMW brand because they allow for maintaining consistency with the vehicle's factory specifications.

Before installation, it is recommended to:

• check for leaks at the mounting point in the oil pan,
• inspect the electrical connector and wiring harness for mechanical damage,
• perform a computer diagnostic scan after installation to confirm correct oil level readings.

Related Products and Guide Materials

If you are looking for other BMW oil pans or related parts for your car, check out our dedicated category: BMW Oil Pans. You will find a wide selection of components tailored to various models and engine versions.

Planning a more extensive engine overhaul, such as an engine replacement with accessories? It's worth familiarizing yourself with a practical guide that outlines step-by-step what to look for when buying a used engine: How to Buy a Used Car Engine and Avoid Pitfalls – A Step-by-Step Guide. This will help you plan your repair more effectively and select appropriate accompanying parts, such as sensors or engine accessories.