Mercedes W204 W211 OM646 Injector Holder Bracket Set is a component from the injector nozzles category, designed for OM646 diesel engines in Mercedes C-Class W204 and E-Class W211 models. A complete injector holder bracket ensures stable mounting of the injector, which translates to proper operation of the diesel fuel system and reduction of unwanted vibrations.
Specifications and technical data
- SKU: A6460160838
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A6460160838
- Substitutable numbers: A6460160838, A 646 016 08 38, A6460160638, A 646 016 06 38
- Fuel type: Diesel
- Category: Fuel Injectors
Purpose and Function in the Injection System
The OM646 injector holder bracket is responsible for the precise seating of the injector in the engine head, maintaining proper clamping force, and ensuring sealing in the combustion chamber. A correctly selected mounting set reduces the risk of:
- injector seat leakage and exhaust blow-by,
- excessive injector vibrations leading to accelerated wear,
- improper fuel atomization in the diesel engine.
In OM646 diesel engines, stable injector mounting directly impacts the engine's running smoothness, even combustion of the mixture, and the level of noise and vibration.
Injector Mounting Set for Mercedes
The offered injector bracket/holder/foot set is a dedicated solution for selected Mercedes W204 and W211 models with diesel engines. Using a set from the same design family as the OM646 unit facilitates installation and compatibility with existing injector seats.
In practice, this means:
- maintaining the factory mounting geometry of the injector,
- proper transfer of loads from the injector to the engine head,
- reducing the risk of play and the need for frequent tightening adjustments.
Product Condition and Service Application
The component comes from the secondary market, making it an attractive cost-effective alternative compared to new parts, while maintaining original geometry and intended use. This type of used injector foot is particularly suitable for:
- routine repairs after damage or wear of the factory mounting,
- diesel injection system service after injector removal,
- restoring proper engine operation after blow-by or injector seal leaks.
Selecting the correct mounting set is especially important after injector regeneration or replacement, when stable re-seating of the component in the cylinder head is required.
Benefits of Using a Dedicated Injector Bracket
Using a properly selected injector holder in a diesel engine brings a range of practical service and operational benefits:
- stable injector mounting and reduced risk of it "lifting" under pressure,
- maintaining combustion chamber seal, which promotes proper mixture combustion,
- reduced noise and vibrations associated with the injection system's operation,
- support for smooth operation of the OM646 engine under typical driving conditions.
In conjunction with properly functioning injectors, the mounting set is an important element influencing the overall refinement of the powertrain.
Diagnostics and Prevention for Diesel Injection Systems
When replacing the injector bracket or foot, it is advisable to pay attention to the overall condition of the diesel engine's fuel system. Symptoms such as uneven running, smoking, or loss of power can result from problems with the mounting as well as the injectors themselves. If you want to better understand typical symptoms and the consequences of neglect, the article diesel injector faults – symptoms, effects, and diagnostics, which discusses common injector problems in diesel engines, will be helpful.
Other Mercedes Injector Nozzles
If you are also looking for other components from the Mercedes injector nozzles category for your car, check out the Mercedes injector nozzles available in our assortment to find a complete solution for your vehicle's fuel system.
