Mercedes-Benz C W203 CDI Diesel Fuel Tank Level Sensor Sender Unit A2034703141

Mercedes-Benz C W203 CDI Diesel Fuel Tank Level Sensor Sender Unit is a precision fuel system component responsible for reliable readings of the diesel fuel level in the tank. Thanks to its compatibility with W203 series models and operation in diesel-powered systems, the sensor ensures stable integration with the factory instrument cluster. It is a practical solution for users who want to restore accurate fuel level readings without interfering with the vehicle's electrical installation.

Specifications and technical data

• SKU: A2034703141
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2034703141
• Substitutable numbers: A2034703141, A 203 470 31 41
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The fuel level sensor in the Mercedes W203 is responsible for continuous measurement of the diesel fuel quantity in the tank and transmitting the signal to the instrument cluster. A properly functioning component eliminates issues with randomly dropping needles, false reserve warnings, or uncertain range estimates on the onboard computer. Combined with a properly functioning pump and injectors, it helps maintain stable operation of the entire fuel system.

Compatibility and fit for Diesel

The presented sensor has been designed to work with Diesel fuel systems, which means it features the appropriate operating characteristics for a diesel environment and matches the electrical parameters of the Mercedes W203 installation. Using the correct type of sensor for the specific fuel type reduces the risk of reading interference, premature wear of the measuring element, and issues with signal interpretation by the vehicle's ECU.

Characteristics of the used component

The offered fuel level sensor is a used item from the Fuel pumps and level sensors category, which allows for an economical repair of the fuel system while maintaining original operating characteristics. A used component of this type is particularly attractive for older Mercedes W203 models, where reasonable service costs are important while maintaining compatibility with the factory installation.

Benefits of using an original sensor

Using the correct fuel level sensor in a Mercedes W203 translates into:

• reliable diesel fuel level readings on the dashboard,
• better range control and refueling planning,
• reduced risk of the reserve light appearing suddenly despite a higher actual fuel level,
• consistent operation with other components of the diesel fuel system.

For users who want to better understand the relationships between the fuel level sensor, pump, and injectors, the following article describing the construction and maintenance of the fuel system will be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Support with selection and repair expansion

The selection of the correct fuel level sensor for a Mercedes should always be based on vehicle identification data and part numbers to maintain full compatibility with the factory installation. 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 pump modules, pump inserts, or additional level sensors, check the available parts in the Mercedes fuel pumps and level sensors category.

For those considering a broader replacement of components based on second-hand parts, a practical guide to the used parts market may be useful: Best used car parts – a guide to the most frequently chosen original parts.

Summary

Mercedes-Benz C W203 CDI Diesel Fuel Tank Level Sensor Sender Unit is a functional solution for drivers who want to restore correct diesel fuel level readings in their car. The component designed for Diesel systems allows for consistency with the factory fuel system, and the used nature of the part enables rational reduction of service costs while maintaining the original operating specifications of the fuel system.