Mercedes W205 OM626 High Pressure Injection Fuel Pump A6260700101

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W205 OM626 High Pressure Injection Fuel Pump is a component from the High-pressure fuel pumps group, designed for precise fuel delivery to the engine unit at the appropriate high pressure. This is an OEM solution that allows for restoring the proper operation of the injection system in models with the OM626 engine, ensuring stable engine performance and predictable throttle response.

Specifications and technical data

• SKU: A6260700101
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6260700101
• Substitutable numbers: A6260700101, A 626 070 01 01, 167002133R
• Category: High Pressure Fuel Pumps

Technical characteristics and role in the fuel system

The high-pressure pump in the OM626 engine is responsible for generating operating pressure for the injectors, which directly affects fuel dosage, exhaust emissions, and vehicle dynamics. Using a dedicated pump for a specific engine unit reduces the risk of starting problems, power drops, or unstable idle speeds. Thanks to the factory design, the correct pressure characteristics are maintained across the entire load range, which is important both during calm driving and during intense acceleration.

The element from the High-pressure fuel pumps category is crucial for the correct cooperation between the engine control unit and the injection system. A properly selected pump allows for maintaining the operating parameters specified by the manufacturer, which facilitates diagnostics, calibration, and subsequent maintenance.

OEM selection and compatibility with Mercedes W205 OM626

The presented pump has been designed for use in the OM626 unit mounted in the W205 body, which means it is matched in terms of mounting, fuel connections, and cooperation with factory engine equipment. Selecting parts by OEM number and interchangeable numbers helps avoid problems with mismatched replacements and ensures compatibility with the injection maps stored in the ECU.

For users and workshops, this means the possibility of carrying out repairs in a predictable manner, without the need for fuel system modifications or software interference. Using an original high-pressure pump helps maintain uniform pressure on the fuel rail, which translates into stable engine operation across the full RPM range.

Condition, verification, and service application

The pump is offered as a used item, which makes it an attractive cost-effective solution while maintaining compliance with factory specifications. Such components are frequently used in professional workshops for maintenance repairs when the goal is to restore the efficiency of the fuel system without investing in a new subassembly. A properly selected used high-pressure pump allows for reducing vehicle downtime and shortening the repair process.

Due to the importance of this element for engine operation, it is recommended to perform a standard check of the fuel system tightness, filter condition, and the correctness of parameters read by diagnostics before installation. Such an approach minimizes the risk of secondary faults and allows for fully utilizing the potential of the installed pump.

Technical support and fuel system overview

If you want to better understand how the fuel supply system in your car works, how to diagnose pressure drops, select elements by OEM number, and when to consider regeneration, check out our guide: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. You will find practical tips regarding operation and typical symptoms of high-pressure pump wear there.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional pumps, supply lines, or pressure control elements, check the available parts in the Mercedes high-pressure fuel pumps category.

Summary of benefits of using the Mercedes W205 OM626 High Pressure Injection Fuel Pump

Mercedes W205 OM626 High Pressure Injection Fuel Pump is a solution intended for users who expect compliance with factory specifications and predictable engine unit behavior after repair. Using a dedicated high-pressure pump helps maintain proper fuel pressure, stable injector operation, and correct cooperation with the engine control unit. It is a practical choice for fuel system repairs in models with the OM626 engine, allowing for a balance between cost control and maintaining the operating parameters specified by the manufacturer.