The AdBlue Injector Nozzle for Mercedes C207 OM651 BlueTec is a precise component of the exhaust gas purification system in diesel engines, responsible for the controlled injection of AdBlue fluid into the exhaust stream. A properly selected nozzle ensures stable SCR system operation, reduction of nitrogen oxide emissions, and correct functioning of the entire exhaust system in Mercedes diesel vehicles.
Specifications and technical data
- SKU: A0004900713
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A0004900713
- Substitutable numbers: A0004900713, A 000 490 07 13
- Fuel type: Diesel
- Category: Fuel Injectors
Application and Function in the BlueTec System
The AdBlue injector nozzle for Mercedes C207 with OM651 engine operates within the BlueTec system as the final dosing element for urea solution into the exhaust gases. The correct spray pattern and stable fluid dosing are crucial for the effective operation of the SCR catalyst, maintaining emission standards, and avoiding engine control unit errors.
This component works in conjunction with the AdBlue supply system and the engine control unit, which calculates the fluid dosage based on load, temperature, and exhaust flow. A functional nozzle helps to:
- maintain effective NOx emission reduction in diesel engines,
- prevent clogging of the exhaust system by crystallizing AdBlue fluid,
- reduce the risk of the engine entering limp mode due to SCR system errors.
Benefits of Using an Original Injector Nozzle
In Mercedes BlueTec exhaust gas purification systems, maintaining factory spray parameters is essential. Using an original injector nozzle from the Injector Nozzles category allows for:
- precise AdBlue fluid dosing according to the control unit's maps,
- stable diesel engine operation across the full range of loads,
- reduced AdBlue consumption due to proper atomization and mixing with exhaust gases,
- easier SCR system diagnostics by maintaining OEM parameters.
This solution is particularly important for vehicles used for long-distance travel, where the exhaust gas purification system operates continuously and is exposed to high temperatures and variable loads.
Characteristics of a Used Component
The offered injector nozzle is a used part, removed from a dismantled vehicle, providing a favorable compromise between cost and maintaining factory parameters. This type of part allows for an economical repair of the BlueTec system while preserving the original spray geometry and ensuring correct mounting fitment for Mercedes installations.
During installation, it is recommended to:
- check the AdBlue system for leaks after installing the nozzle,
- inspect the fluid supply lines for mechanical damage and corrosion,
- perform computer diagnostics to clear any SCR system errors.
AdBlue Injection System Diagnostics and Prevention
Incorrect operation of the AdBlue injector nozzle can manifest as exhaust gas purification system fault messages, increased fluid consumption, or the engine entering limp mode. In such cases, it is advisable to conduct comprehensive diagnostics of the diesel engine's injection system and the SCR system. Practical tips for identifying problems with injection components can be found in the article Diesel Injector Faults – How to Recognize Them and What Neglecting Them Entails, which discusses typical symptoms and verification methods.
Other Mercedes Injector Nozzles
If you are also looking for other Mercedes injector nozzles to expand or service the fuel and AdBlue system in your car, check out our dedicated category Mercedes Injector Nozzles, where you will find a wide selection of compatible components for various models of this brand.
