Mercedes Fuel Tank Sending Unit - Genuine Mercedes 2205421017

Product Information

A fuel tank sending unit is a component located inside the fuel tank that measures the amount of fuel remaining and sends this information to the fuel gauge on the dashboard. The sending unit consists of a float, a metal rod, and a variable resistor. As the fuel level changes, the float moves up or down, causing the resistance to vary, which changes the signal sent to the gauge, indicating the fuel level.

• Inaccurate Fuel Gauge Readings: A failing sending unit often causes the fuel gauge to show incorrect fuel levels, such as always reading full, empty, or fluctuating unpredictably
• Stuck Fuel Gauge: If the float or sensor mechanism gets stuck, the fuel gauge may remain in one position, regardless of the actual fuel level
• Fuel Gauge Reads Empty with Fuel in Tank: A sending unit failure may cause the gauge to read empty, even though there is fuel remaining, leading to unnecessary refueling or inconvenience

About Genuine Mercedes

The original parts used by Mercedes Benz to build your car are available as replacement parts under the “Genuine Mercedes Benz” brand. Manufactured under the direction of Mercedes Benz, expect excellent quality and a premium price since these parts are exclusively available through the Mercedes Benz Dealership network.

You may not realize this, but the parts that make up your Mercedes-Benz are not necessarily manufactured by Mercedes-Benz. No cause for concern, as Mercedes-Benz designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for Mercedes-Benz for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine Mercedes-Benz parts box and find an OEM branded part inside, simply with the addition of a Mercedes-Benz logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.