Mercedes Citan W415 OM608 Diesel Fuel Pump Sender Unit A4154780000

The Mercedes Citan W415 OM608 Diesel Fuel Pump is a specialized component from the Fuel Pumps and Level Sensors group, designed for diesel engine fuel systems. This used, genuine Mercedes part allows for a technically correct repair or replacement of the assembly without altering the factory fuel system, ensuring stable fuel supply to the OM608 Diesel engine.

Specifications and technical data

• SKU: A4154780000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4154780000
• Substitutable numbers: A4154780000, A 415 478 00 00
• Fuel type: Diesel
• Part type: Fuel Pump
• Category: Fuel Pumps & Sending Units

Purpose and Function in the Fuel System

The described fuel pump operates within the diesel engine's fuel supply system, responsible for transporting diesel fuel from the tank to other system components. A correctly selected pump is crucial for maintaining proper operating pressure, stable injection performance, and correct starting of the OM608 engine in the Citan W415 model.

This structural component works in conjunction with fuel level sensors and other system components, which directly impacts:

• uniform engine fueling across all load ranges,
• reduced risk of air ingress into the system at low fuel levels,
• proper operation of diagnostic systems and the fuel level indicator.

Benefits of Using a Genuine Mercedes Pump

Using a genuine Mercedes component in the diesel fuel system allows for the preservation of the engine's factory operating parameters. The pump's design is tailored to the characteristics of the OM608 engine, resulting in correct fuel delivery and compatibility with the vehicle's factory electronics.

The key advantages of using a genuine, used fuel pump include:

• preservation of factory geometry and mounting points, facilitating installation in the Citan W415 body,
• compatibility with the factory fuel lines and connectors,
• reduced risk of compatibility issues compared to aftermarket alternatives of unknown origin.

Operating Characteristics in a Diesel Engine

A fuel pump designed for diesel engines operates under different conditions than those for gasoline engines. Diesel systems require stable fueling at higher operating pressures and resistance to the specific properties of diesel fuel, including its lubricating and filtering characteristics.

In practice, this means:

• the internal components of the pump are designed for prolonged contact with diesel fuel,
• the construction is adapted for cooperation with the fuel filtration used in the Mercedes Citan W415,
• flow rates are matched to the OM608 engine's requirements under various load conditions.

Condition, Installation, and Selection Based on Technical Data

The offered fuel pump is a used part, enabling an economical repair while maintaining the manufacturer's original specifications. Before installation, standard service procedures are recommended: checking system tightness, verifying the condition of fuel lines, and replacing the fuel filter according to the vehicle's service recommendations.

It is always advisable to confirm the correct pump selection for a specific Citan W415 version with an OM608 engine based on catalog data, VIN, or manufacturer markings to ensure full compatibility with the vehicle's factory configuration.

Technical Support and Additional Information

When planning repairs to the fuel supply system in modern vehicles, it is important to pay attention to the correct selection of components that interact with the vehicle's electronics. Detailed information on selecting used modules and sensors, including the significance of OEM markings and hardware/software compatibility, can be found in the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and require other parts from the same group, such as supply pumps, pump modules, or fuel level sensors, check the available parts in the Mercedes Fuel Pumps and Level Sensors category.