Fuel Pump Mercedes W204 W212 AMG Sender Unit Sensor Left N/S A2184700594

Fuel Pump Mercedes W204 W212 AMG Sender Unit Sensor Left N/S is a specialized fuel system component designed for petrol engines. The integrated pump module, featuring a float assembly and fuel level sensor, ensures stable engine fuel supply and precise fuel level readings, resulting in safe and predictable operation of Mercedes mid-size and luxury vehicles.

Specifications and technical data

• SKU: A2184700594
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2184700594
• Substitutable numbers: A2184700594, A 218 470 05 94, BG
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The described fuel pump with level sensor is designed for installation on the left side of the fuel tank in Mercedes C-Class and E-Class W204 and W212 generation models in AMG versions with petrol engines. The component is responsible for transporting fuel from the tank to the injection system and for transmitting fuel level information to the instrument cluster and onboard systems.

Thanks to the integrated pump and fuel level sensor assembly, the following is achieved:

• stable supply pressure across the entire engine load range,
• consistent signal for the fuel gauge and diagnostic systems,
• reduced risk of fuel supply interruptions during dynamic driving.

Module construction and key technical features

The module belongs to the Fuel pumps and level sensors category, which means it combines hydraulic and measuring functions in a single housing. Inside, there are components responsible for suction and pumping of petrol, as well as a float mechanism working with a sensor that generates a signal for the vehicle's electronics.

The placement on the left side of the tank is important for:

• proper fitment to the tank geometry and pump basket,
• correct routing of fuel lines and electrical wiring,
• proper cooperation with the second module (if present in a given body variant).

The adaptation for petrol supply ensures compatibility with the operating characteristics of AMG engines, which require sufficiently efficient and stable fuel supply under higher loads.

Benefits of using an original module in Mercedes AMG

Using a dedicated fuel pump with a level sensor in Mercedes W204 and W212 AMG versions allows for maintaining factory fuel system performance parameters. Proper fitment to the tank design and fuel installation limits the risk of issues such as uneven engine operation, incorrect fuel level readings, or warning messages appearing on the dashboard.

The main advantages of this solution include:

• compatibility with the factory installation – correct connectors and mounting geometry,
• consistency with vehicle control unit software,
• maintaining predictable vehicle behavior at low fuel levels.

Characteristics of the used product

The offered item comes from the used parts segment, which allows for an economical repair of the fuel system while maintaining the manufacturer's original specifications. This type of component is particularly attractive for advanced AMG models, where new fuel system parts can be costly.

Before installation, a standard service procedure is recommended, including checking the electrical installation, fuel lines, and connection tightness to fully utilize the potential of the installed module and ensure trouble-free operation.

Expanding the fuel system in Mercedes

If you are planning a comprehensive repair or upgrade of the fuel supply system in your Mercedes and need other elements from the same group, such as additional pump modules, level sensors, or complete fuel basket assemblies, check the available parts in the Mercedes fuel pumps and level sensors category.

More on choosing used electronics and accessories

When selecting fuel system components and associated sensors, it is worth knowing best practices related to purchasing components from the secondary market. To better understand when used electronic components and sensors are a reasonable choice and how to minimize risks during their installation, see the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?