Mercedes Sprinter W906 OM651 Diesel Air Flow Mass Meter Sensor A6519050500

Mercedes Sprinter W906 OM651 Diesel Air Flow Mass Meter Sensor is a component from the Air and fuel intake sensors group, designed for OM651 diesel engines. It enables precise measurement of the intake air volume in Diesel units, which translates into stable engine operation, correct fuel dosing, and proper response to load.

Specifications and technical data

• SKU: A6519050500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6519050500
• Substitutable numbers: A6519050500, A 651 905 05 00, KD
• Fuel type: Diesel
• Category: Air Intake & Fuel Sensors

Function of the air flow meter in the Mercedes Sprinter W906 OM651

The air flow meter in the OM651 engine intake system is responsible for the real-time measurement of the air mass drawn by the engine. Based on this signal, the engine control unit (ECU) determines the fuel dose, adjusts the operation of the injection system, and supports the functioning of emission control systems. A fully functional sensor helps maintain:

• stable idle speed,
• proper dynamics during acceleration,
• optimal fuel consumption in a diesel engine,
• correct cooperation with the exhaust gas recirculation and turbocharging systems.

Application in the Diesel engine intake system

In the Diesel OM651 units installed in the Mercedes Sprinter W906, the air flow meter is one of the key sensors in the air path. Its correct operation is particularly important under variable load conditions – when driving with a load, on the highway, and in city traffic. Replacing a faulty component with the correct model dedicated to this engine allows for the restoration of:

• correct torque characteristics,
• better engine refinement,
• consistency of readings with other sensors in the fuel supply and turbocharging system.

Product characteristics and fitment

The offered air flow meter belongs to the Air and fuel intake sensors group and is designed to work with the OM651 engine in the Mercedes Sprinter W906. By being assigned to a specific engine unit, it ensures signal compatibility with the requirements of the engine control unit and proper scaling of the air mass measurement. The product has an assigned OEM part number and interchangeable numbers, which facilitates compatibility verification based on factory markings.

Condition, origin, and benefits of choosing a used sensor

The air flow meter is offered in Used condition, meaning it has been removed from a vehicle and verified for further serviceability. Choosing a used original component allows you to maintain the factory operating parameters of the intake system at a lower cost compared to a new part. This solution is particularly beneficial for fleet maintenance or routine repairs in commercial vehicles.

How to choose the right air flow meter for your Mercedes

To correctly select an air flow meter for a Mercedes Sprinter W906 with an OM651 engine, it is worth verifying:

• the compatibility of the OEM part number with the vehicle documentation,
• interchangeable numbers approved by the manufacturer,
• fuel type – in this case, dedicated to Diesel units.

Such an approach minimizes the risk of adaptation problems, engine control unit errors, and improper operation of the fuel supply system.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as boost pressure sensors, air temperature sensors, or fuel measurement elements, check the available parts in the Mercedes air and fuel intake sensors category.

More about used electronics and sensors

When choosing a used air flow meter, it is worth knowing the basic principles of selection by OEM number, hardware and software compatibility, and proper installation. A detailed discussion of these issues can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?, where practical examples, frequently asked questions, and tips for trouble-free installation are described.