Oil Pressure Sensor BMW F20 LCI Mini F56 Engine Oil Filter Sensor 8576615

Oil Pressure Sensor BMW F20 LCI Mini F56 Engine Oil Filter Sensor is a precision component from the Engine sensors and switches group, responsible for reliable oil temperature readings in diesel units. A stable signal from the sensor supports the proper operation of the engine control unit, which translates into safe lubrication conditions and thermal load control.

Specifications and technical data

• SKU: 8576615
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8576615
• Substitutable numbers: 8576615, 12618576615, BG
• Fuel type: Diesel
• Category: Engine Sensors & Switches

Purpose and role in the diesel engine system

The presented oil temperature sensor has been designed for use in BMW F20/F21 LCI series vehicles and Mini F56 models with diesel engines. Its task is to continuously measure the temperature of the lubricating medium and transmit a signal to the controller, which then adjusts the engine's operating strategy accordingly.

In a properly functioning lubrication system, the oil temperature sensor:

• enables monitoring of engine operating conditions across the full load range,
• supports protection against oil overheating and loss of its properties,
• allows the controller to implement appropriate warm-up and cooling strategies for the unit.

Benefits of using an original BMW sensor

The original oil temperature sensor dedicated to specific BMW and Mini models ensures correct measurement characteristics and electrical compatibility with the factory controller. As a result:

• the temperature signal is stable and repeatable throughout the entire operating range,
• the controller does not generate errors related to incorrect resistance or sensor characteristics,
• compliance with factory engine control maps is maintained.

In the case of diesel units, proper oil temperature control is particularly important, as it affects the durability of the turbocharger, bearings, and the overall service life of the engine.

Condition, verification, and service application

The sensor comes from disassembly and is a used part, which provides a cost-effective solution while maintaining compliance with BMW factory specifications. This type of component is often replaced when oil temperature reading errors, incorrect diagnostic indications, or problems with the engine entering appropriate operating modes occur.

In service practice, replacing the oil temperature sensor is recommended when:

• diagnostics indicate an open circuit or signal short circuit,
• the oil temperature reported by the controller is illogical relative to operating conditions,
• there are issues with engine adaptation or protective strategies.

Connection to the cooling system and temperature control

Oil temperature is closely linked to the efficiency of the engine cooling system. An incorrect reading can mask actual engine overheating, which is why a functional sensor is an important element in preventing more serious failures. To better understand the relationships between oil temperature, the cooling system, and engine service life, it is worth reading the article Engine cooling system – overheating, repair, and used radiators, which discusses the impact of temperature control on the durability of BMW and other brand engines.

Complementary items from the same group

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 pressure sensors, switches, or other engine operation sensors, check the available parts in the BMW engine sensors and switches category.

For owners of BMW diesel vehicles planning broader service work on the engine, information on the operation and repair of other key components may also be useful – these are discussed in detail in the article BMW N47 timing chain – typical failure and repair using original BMW parts, which demonstrates a practical approach to using used OEM components.