Mercedes W901 W902 Fuel Tank Sender Unit Pump Level Sensor Diesel A9015422317

Mercedes W901 Fuel Tank Sender Unit Pump Level Sensor is a fuel system component designed for precise measurement of fuel levels in the tank and stable engine fueling. As part of the Fuel pumps and level sensors group, it ensures reliable readings for the dashboard gauge and proper fuel flow to the injection system. Using this OEM component helps maintain the factory performance characteristics of the fuel system in Mercedes W901 series vehicles.

Specifications and technical data

• SKU: A9015422317
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9015422317
• Substitutable numbers: A9015422317, A 901 542 23 17
• Part type: Fuel Sending Unit
• Category: Fuel Pumps & Sending Units

Function and application in the fuel system

The presented unit combines the functions of a fuel pump and a level sensor, making it responsible for both delivering fuel at the correct pressure and transmitting the current fuel level signal to the instrument cluster. Using a dedicated solution for the Mercedes W901 reduces the risk of incorrect readings, starting problems, and uneven engine operation resulting from unstable fuel supply. A properly selected element from the Fuel pumps and level sensors category is particularly important in vehicles used intensively, where the fuel system operates under varying load and temperature conditions. The appropriate design of the pump and sensor assembly allows for stable fuel flow even at low levels in the tank, which translates into predictable vehicle behavior.

Benefits of using an original Mercedes component

The original Mercedes component ensures compatibility with the factory electrical installation, fuel tank geometry, and fuel system operating parameters. As a result, installation is straightforward, without the need for modifications to the wiring, mounts, or float, and the system retains the characteristics intended by the vehicle manufacturer. A used OEM element is a reasonable compromise between cost and quality – especially in the case of older vehicle generations, where maintaining the original specification is important for reliability and consistency of operation. For drivers looking for additional tips on choosing salvaged parts, the following article describing practical selection criteria may be helpful: 5 reasons why a used OEM part is a better choice than a replacement.

Diagnostics and common symptoms of wear

A faulty fuel level sensor or pump in the in-tank assembly can cause symptoms such as jumping fuel level readings, the reserve light coming on too early, difficult starting after a long period of inactivity, or engine stuttering at low fuel levels. In such situations, replacing the complete pump unit with the sensor is often the fastest and most predictable service solution. When planning fuel system repairs, it is worth paying attention to the general condition of the fuel installation, including lines, filters, and components responsible for fuel metering. Additional information on the safe selection of used fuel system components can be found in the guide: Fuel metering problems: what to look for when buying a used injection pump and fuel rails?.

Purpose and vehicle integration

The fuel pump unit with level sensor has been designed specifically for the tank architecture and installation in Mercedes W901 series models, which facilitates integration with the factory electrical and mechanical system. Using a dedicated solution minimizes the risk of leaks, mounting issues, or improper float operation in the tank. If you are planning a comprehensive repair or upgrade of the fuel supply area in your Mercedes and need other elements from the same group, such as supply pumps, in-tank pump modules, or additional level sensors, check the available parts in the Mercedes fuel pumps and level sensors category.

Summary

Mercedes W901 Fuel Tank Sender Unit Pump Level Sensor is a practical service solution for users who want to restore correct fuel level readings and stable engine fueling without deviating from the factory specification. A used, original element from the Fuel pumps and level sensors category allows for reduced repair costs while maintaining the structural and electrical fit characteristic of OEM parts from this brand.