Mercedes W203 W211 Diesel OM648 Fuel Injector A6480700287 is an original injector nozzle designed for OM648 diesel engines, used in popular Mercedes C-Class W203 and E-Class W211 models. This part comes from a dismantled vehicle, allowing for an economical yet technically sound repair of the fuel system in diesel engines of this series.
Specifications and technical data
- SKU: A6480700287
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A6480700287
- Substitutable numbers: A6480700287, A 648 070 02 87
- Fuel type: Diesel
- Category: Fuel Injectors
Purpose and Role of the Injector in the OM648 Engine
The presented injector belongs to the category of injector nozzles and is a key component of a precise diesel engine fuel system. It is responsible for accurate fuel metering and proper atomization of diesel fuel in the combustion chamber, which directly impacts the engine's running smoothness, dynamics, and fuel consumption.
In the OM648 engine, a properly functioning injector helps maintain:
- stable idle speed without misfires or vibrations,
- even mixture combustion across the entire load range,
- lower fuel consumption while maintaining nominal performance,
- reduced exhaust emissions, in line with the OM648 unit's design specifications.
Benefits of Using an Original Mercedes Injector Nozzle
Using an original injector in a diesel engine ensures proper compatibility with the unit's operating parameters and the engine control unit. In practice, this means:
- factory injection characteristics – opening time, fuel dose, and spray pattern consistent with manufacturer specifications,
- correct cooperation with the common rail system and the sensors controlling fuel delivery,
- reduced risk of cold and hot start problems,
- stable performance under load, especially at higher engine speeds.
For Mercedes diesel engines, using the correct injector nozzle is crucial for the durability of pistons, valves, and the turbocharger, as it limits phenomena such as excessive smoke or localized overheating of the combustion chamber.
Condition, Fuel Type, and Service Application
The offered part is a used injector nozzle intended for diesel fuel systems. This type of part is often chosen as a service solution in situations where:
- the original injector has worn out (excessive return flow, uneven running, knocking),
- a quick replacement of a single component is necessary without costly regeneration of the entire set,
- a budget-friendly solution is sought while maintaining original manufacturer specifications.
Before installation, standard workshop procedures are recommended, including verification of operating parameters on a test bench and a leak test, to match the injector to the current condition of the engine unit.
Diagnostics and Prevention of the Injection System
For diesel engines, early detection of injector malfunctions is particularly important. Symptoms such as starting difficulties, smoke, power loss, or increased fuel consumption may indicate the need for injector nozzle replacement or repair. To better understand the symptoms and consequences of neglect, it is worth reading the article Diesel Injector Failures – How to Recognize Them and What Are the Consequences of Neglect, which discusses diagnostics and common problems of injection systems in diesel engines in detail.
Selection of a Used Injector and Economic Aspects
Choosing a used injector for a Mercedes is a compromise between cost and maintaining factory parameters. For many owners of vehicles with OM648 engines, this is a sensible service solution that allows restoring the proper operation of the engine unit without the need to invest in a complete set of new parts. When selecting, it is worth considering:
- compatibility with the specific engine type and injection system generation,
- the ability to verify parameters on a diagnostic stand,
- the workshop's experience in working with OM648 units.
If you are considering whether an original, aftermarket, or used part would be a better choice in your case, the guide Original, Aftermarket, or Used – Which Car Parts Are Most Cost-Effective? may be helpful, discussing the differences in cost, quality, and fit of parts based on OEM numbers.
Other Mercedes Injector Nozzles
If you are looking for other Mercedes injector nozzles, our website offers a wide range of parts for various models and generations of diesel engines. Check out the available Mercedes injector nozzles to select the component that best fits your specific vehicle version.
