The Mercedes ML W164 OM629 Diesel Injector Nozzle is an original injector nozzle designed for the OM629 diesel engine in the Mercedes ML W164 model. This part comes from a dismantled vehicle, allowing for an economical yet technically sound repair of your car's fuel system.
Specifications and technical data
- SKU: A6290700087
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A6290700087
- Substitutable numbers: A6290700087, A 629 070 00 87
- Fuel type: Diesel
- Category: Fuel Injectors
Technical Characteristics of the Injector Nozzle
The presented injector nozzle belongs to the category of Injector Nozzles and is designed for Diesel engines. It is responsible for precise fuel delivery to the combustion chamber, which is crucial for the stable operation of the OM629 unit, proper running quality, and reduced smoke emissions.
Original manufacturing for the Mercedes brand ensures correct spray patterns, appropriate opening pressure, and compatibility with the factory engine control system. This preserves the correct torque and power characteristics, as well as proper cooperation with the common rail injection system.
Application in the OM629 Diesel Engine
The OM629 engine is an advanced diesel unit with a high-pressure injection system. The use of the correct injector nozzle affects:
- Stable cold starts and smooth idle operation,
- Proper mixture combustion across the full load range,
- Maintaining optimal fuel consumption while preserving dynamics,
- Reducing exhaust emissions and smoke during acceleration.
Selecting the right injector nozzle for the ML W164 with the OM629 engine is particularly important for repairs following injection failures, smoke issues, or uneven engine operation.
Condition of the Part and Benefits of Choosing a Used Nozzle
The offered injector nozzle is a used original part, sourced from a dismantled vehicle. This type of component allows for:
- Reduced repair costs compared to a new component,
- Maintaining the factory specifications of the Mercedes injection system,
- Quick replacement of a damaged injector without the need for costly regeneration of the entire set.
Before installation, professional diagnostics of the injection system and, if necessary, testing on a test bench are recommended to confirm the injector's operating parameters against the requirements of the OM629 engine.
Diagnostics and Prevention for the Injection System
When replacing an injector nozzle, it's worth paying attention to typical signs of wear, such as starting difficulties, power loss, increased fuel consumption, or uneven idle operation. A detailed discussion of symptoms and testing methods can be found in the article: Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails. The knowledge from this material will help you decide whether replacing a single nozzle is sufficient or if a more extensive intervention in the injection system is necessary.
Mercedes Injector Nozzles – Selection and Alternatives
If you are looking for other Mercedes injector nozzles for your car, check the Mercedes injector nozzles available in our store to select a part that matches your specific engine version. For vehicles of this brand, proven parts from dismantled vehicles are also a sensible alternative to new components – you can read more about this in the guide: Used Mercedes Parts – Original Components from Dismantling.
Summary
The Mercedes ML W164 OM629 Diesel Injector Nozzle is the right choice for drivers who want to restore proper operation to their diesel engine while maintaining the factory characteristics of the injection system. An original injector nozzle from a dismantled vehicle allows for a technically sound repair, reduced service costs, and maintaining the OM629 unit's operating parameters at the level intended by the manufacturer.
