BMW X1 E84 E90 E92 LCI N20 N55 Petrol Fuel Level Sensor With Filter 7313791

BMW X1 E84 E90 E92 LCI N20 N55 Fuel Level Sensor is a component from the fuel pumps and level sensors category, designed for gasoline engines. It is responsible for the precise reading of fuel quantity in the tank, which is crucial for the correct operation of the dashboard indicator and the comfort of daily use. This is a solution for users looking for a proven component with factory operating characteristics, tailored to the specifics of N20 and N55 units.

Specifications and technical data

• SKU: 7313791
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7313791
• Substitutable numbers: 16117313791, 7313791
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Application and Function in the Fuel System

The fuel level sensor in BMW X1 E84, E90, and E92 LCI models with N20 and N55 engines is responsible for continuously measuring the amount of gasoline in the tank. The signal from the sensor is transmitted to the control module and the instrument cluster, enabling:

• stable fuel level readings on the gauges,
• correct operation of the range and fuel consumption calculation functions,
• avoidance of sudden drops in readings at low fuel levels.

Thanks to proper adaptation to the gasoline system, the sensor works with the factory fuel pump, maintaining the characteristics intended by the vehicle manufacturer.

Compatibility and Fit for BMW X1 E84 / E90 / E92 LCI

The presented sensor has been designed with the fuel tank architecture of selected BMW X1 and 3 Series facelift models in mind. The appropriate profiling of the float arm and the design of the measuring part ensure:

• correct operation within the full and reserve fuel level range,
• compatibility with the factory wiring and installation connector,
• retention of the original operating logic of the fuel indicator.

For Mini users, it is important to note that this is a Mini brand component, originating from the same group, which facilitates the selection of parts with similar quality and parameters.

Technical Characteristics in a Gasoline System

The fuel level sensor designed for gasoline fuel systems operates in an environment with specific fuel density and properties, which affects the design of the float and the resistance range of the measuring track. In practice, this means:

• the sensor is calibrated for gasoline, not diesel fuel,
• appropriate material resistance to contact with gasoline and its additives,
• accurate representation of the fuel level across the entire operating range of the tank.

Such adaptation is particularly important in modern N20 and N55 units, where stable fuel supply and reliable fuel level data support the operation of onboard systems.

Condition, Verification, and Benefits of Installation

The offered component comes from the secondary market, allowing for an economical restoration of the fuel measurement system's functionality without the need to invest in a new part. Before installation, it is recommended to:

• check compatibility by OEM number or vehicle VIN,
• verify the condition of the electrical connector and wiring,
• check the free movement of the float in the tank.

Replacing a faulty sensor with a functional component eliminates common symptoms such as incorrect fuel level readings, constant low fuel warning, or a jumping needle, which translates to more predictable vehicle operation.

Related Fuel System Components and Additional Materials

If you are looking for other components from the Mini fuel pumps and level sensors category, check out the Mini fuel pumps and level sensors available in our store to select a complete solution for your vehicle. When planning repairs or diagnostics of the entire fuel system, it is also worth familiarizing yourself with practical tips on selecting and operating components – you will find them in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses diagnostics, selection by part numbers, and principles of proper repair, among other things.