Mercedes-Benz C E W203 W210 OM611 OM612 Fuel Low Pressure Pump A6110900250

Mercedes-Benz C E W203 W210 OM611 OM612 Fuel Low Pressure Pump is an original fuel system component designed for OM611 and OM612 series diesel engines in C-Class and E-Class models. As part of the Fuel pumps and level sensors group, it ensures a stable fuel supply to the engine unit, which translates into smooth engine operation and predictable performance. This used OEM component is a sensible choice for professional repairs or servicing of the fuel system in Mercedes vehicles.

Specifications and technical data

• SKU: A6110900250
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6110900250
• Substitutable numbers: A6110900250, A 611 090 02 50, BG
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The described low-pressure pump operates in the diesel engine supply zone, responsible for transporting fuel from the tank to the subsequent components of the system. In OM611 and OM612 units, it is a key component that prepares fuel for further compression in the high-pressure system.

Thanks to its properly selected flow and pressure characteristics, the pump supports:

• stable engine supply across the full load range,
• proper system bleeding after service work,
• maintaining correct injector operating parameters,
• reducing the risk of power drops resulting from fuel starvation.

Application in Mercedes C and E models

The pump has been designed for the powertrain systems of Mercedes C-Class W203 and E-Class W210 with OM611 and OM612 engines. This means compatibility in terms of:

• mounting geometry within the fuel system,
• fuel and electrical connectors typical for this generation,
• operating parameters consistent with engine control unit requirements.

Such compatibility allows it to be treated as a plug-and-play element within a given powertrain configuration, without the need for fuel system modifications.

Performance characteristics and advantages of the OEM solution

Choosing an original low-pressure pump from the Fuel pumps and level sensors group ensures consistency with the factory fuel system concept. The OEM design is engineered for specific engines and bodies, which translates into:

• proper cooperation with the factory engine management system,
• adequate performance in both city and highway conditions,
• maintaining factory cold and warm start parameters.

The used component allows for optimizing repair costs while maintaining the original design specification, which is particularly important for older generations of Mercedes vehicles used on a daily basis.

Condition, verification, and part selection

The product is offered as a used Mercedes part, which means it comes from disassembly and is intended for further use after proper installation. When selecting a pump for a specific vehicle, it is worth paying attention to:

• compatibility with the engine type (OM611 or OM612),
• body generation (C W203, E W210),
• belonging to the same fuel system design group.

Additionally, available OEM part numbers and interchangeable numbers can be helpful, allowing for precise component matching to a specific vehicle configuration.

Expanding the Mercedes fuel system

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

More about used electronic components

When working with the fuel system, the question of the validity of using used control elements and sensors often arises. To better assess when choosing used electronics makes sense and how to minimize risks, it is worth reading the guide The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which discusses practical criteria for selecting and verifying such components.