Mercedes W211 Fuel Delivery Fuel Level Sensor Level Delivery Petrol A2055400017

Mercedes W211 Fuel Level Sensor Petrol A2055400017 is a precise component from the Fuel Pumps and Level Sensors category, responsible for reliable reading of the amount of petrol in the tank. An original Mercedes component ensures stable cooperation with the factory electrical system and correct operation of the fuel gauge on the instrument cluster.

Specifications and technical data

• SKU: A2055400017
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055400017
• Substitutable numbers: A2055400017, A 205 540 00 17
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and Function of the Fuel Level Sensor

The presented fuel level sensor is dedicated to petrol fuel systems and works with the vehicle's serial fuel tank and electrical system. Its task is to convert the float's position into an electrical signal that goes to the speedometer, control unit, and onboard systems responsible for indicating the fuel level and any warning messages.

Using an original sensor in Mercedes cars allows for maintaining consistent electrical parameters, which reduces the risk of incorrect readings, the reserve light illuminating at the wrong time, or problems with fuel system diagnostics.

Construction and Integration with the Fuel System

The fuel level sensor in a petrol fuel system is structurally integrated with the assembly mounted in the tank, allowing it to operate in direct contact with fuel. The geometry of the float and the electrical characteristics are matched to the specific shape of the tank and the gauge calibration in a given model, which translates into predictable needle behavior across the entire range from a full tank to reserve.

Proper matching of the component to the Mercedes installation minimizes the need for wiring modifications and facilitates installation in the factory socket, which is important both for standard replacement and for fuel system repairs after previous modifications.

Benefits of Using an Original Mercedes Part

Choosing an original fuel level sensor from the Fuel Pumps and Level Sensors category offers a number of practical benefits:

• maintaining the factory characteristics of petrol level readings on the gauges,
• correct cooperation with the vehicle's electronics and diagnostic systems,
• reducing the risk of fuel system-related errors,
• easier part identification thanks to the OEM number and interchangeable numbers in service documentation.

Thanks to this sensor, the correct operation of the fuel gauge can be effectively restored after a failure, unstable readings, or problems with the reserve indicator, without the need to interfere with other system components.

Condition, Selection, and Practical Application

The component comes from the Mercedes range and is intended for petrol-powered vehicles, which is important when selecting parts for a specific engine version. When replacing the sensor, it is worth paying attention to compatibility with the vehicle's fuel system and matching it to the installed tank to avoid problems with installation and calibration of readings.

Component selection can be further verified by comparing the OEM part number and interchangeable numbers in service catalogs or vehicle technical documentation, which makes it easier to find the correct replacement within the same design family.

More Solutions and Knowledge about the Fuel System

If you need other elements from the fuel pumps and level sensors category for Mercedes cars, for example, for comprehensive fuel system service, check the available parts in the Mercedes Fuel Pumps and Level Sensors category.

To better understand the relationships between the fuel level sensor, pump, and injectors, as well as to learn about the principles of diagnostics and repair of these components, it is worth referring to the guide article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses practical aspects of operation and part selection by OEM numbers.