The Mercedes W204 W211 C200CDI C220CDI OM646 Fuel Injector A6460700987 is an original component of the diesel engine fuel system, designed for OM646 units in C-Class and E-Class models. It ensures precise diesel fuel metering, which translates to stable engine operation, proper running smoothness, and exhaust emission control.
Specifications and technical data
- SKU: A6460700987-1
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A6460700987
- Substitutable numbers: A6460700987, A 646 070 09 87
- Fuel type: Diesel
- Category: Fuel Injectors
Purpose and Role of the Injector in the OM646 Engine
The offered fuel injector for OM646 engine operates within a common rail system, responsible for precisely injecting diesel fuel into the combustion chamber. A properly functioning injector nozzle influences:
- stable common rail pressure and even operation of all cylinders,
- correct fuel atomization, which facilitates cold starts and reduces smoke,
- maintaining the nominal power and torque of the diesel unit,
- reducing fuel consumption due to the proper spray pattern and fuel dose.
The component is dedicated to Diesel fuel systems, ensuring compatibility with the operating characteristics of C200CDI and C220CDI engines.
Category: Mercedes Injector Nozzles
The product belongs to the Injector Nozzles category, which are key components responsible for the final stage of fuel delivery. In Mercedes vehicles, a correctly selected injector nozzle directly impacts:
- uniform mixture combustion in each cylinder,
- reduction of engine vibrations and noise,
- lowering the risk of piston overheating and excessive load on the crankshaft-piston system,
- maintaining compliance with exhaust emission standards for the vehicle's model year.
If you are looking for other parts in this group, check out the Mercedes injector nozzles available in our store to find a complete solution for your fuel system.
Benefits of Using an Original Mercedes Injector
Using an original injector in the OM646 engine allows for the preservation of the engine unit's factory operating parameters. The most significant advantages include:
- precise fit to the cylinder head seat, which facilitates installation and minimizes the risk of leaks,
- compatibility with the factory engine control unit characteristics, without the need for software modifications,
- stable idle operation and during acceleration,
- reducing the risk of fuel overflow, which could lead to engine oil dilution.
For Mercedes diesel units, the correct selection of injector nozzles is crucial for the durability of the turbocharger, particulate filter, and the entire exhaust system.
Condition, Diagnostics, and Practical Application
The offered component is used, making it an attractive option for users seeking OEM parts at a more favorable price, while maintaining the original manufacturer's specifications. This type of component is particularly worth considering when:
- the engine runs unevenly at idle or under load,
- excessive smoke appears from the exhaust system,
- fuel consumption increases without other visible causes,
- computer diagnostics indicate incorrect injector operation in one of the cylinders.
To better understand the symptoms and consequences of damage, it is worth reading the guide: Diesel Injector Faults – How to Recognize Them and What Neglecting Them Entails. You will find practical tips on diagnostics and further service steps there.
Support with Used Part Selection
The decision between a new and a used fuel system component often depends on the budget and the planned vehicle usage period. If you are considering different options, the article New or Used? A Comparison of Costs and Quality of Car Parts may be helpful, discussing the advantages and limitations of both solutions and presenting practical application examples.
In summary, the Mercedes W204 W211 C200CDI C220CDI OM646 Fuel Injector A6460700987 is a functional component of the Diesel fuel system, allowing you to restore correct engine operating parameters and mitigate the effects of wear on existing injectors in your Mercedes.
