Mercedes W204 OM651 Injector Control Unit Module Sensor A6511509833

The Mercedes W204 OM651 Injector Control Rail Module is an original component of the diesel engine's fuel system, responsible for precise control of injector operation. Designed by Mercedes for stable performance of the OM651 unit, it ensures consistent operation of the entire injection system.

Specifications and technical data

• SKU: A6511509833
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6511509833
• Substitutable numbers: A6511509833, A 651 150 98 33
• Category: Fuel Injectors

Purpose and Function in the Injection System

The injector control rail module in Mercedes W204 models with the OM651 engine is responsible for coordinating control signals to individual injector nozzles. A properly functioning component of this type influences:

• stable engine operation across the full range of loads,
• precise fuel metering in each injection cycle,
• maintenance of correct combustion parameters, which translates to the refinement of the powertrain's operation.

Thanks to its factory design, the Mercedes module works with the vehicle's original electronics, maintaining compatibility with factory control maps.

Construction and Advantages of the Original Mercedes Component

The offered component comes from the line of original Mercedes parts, which means adherence to factory manufacturing and fitting standards. In practice, this translates to:

• certain compatibility with the OM651 engine's injection system in the Mercedes W204,
• consistency with the electrical system and wiring harness in the engine bay,
• appropriate resistance to operating conditions involving high temperatures and engine vibrations.

The control rail is a crucial element for injector operation, therefore using an original module helps reduce the risk of injection synchronization problems and improper engine function.

Product Condition and Service Application

The presented module belongs to the group of used OEM parts, making it an attractive service solution for users seeking a factory part at a reasonable price. This type of component is particularly useful in situations where:

• there are problems with injector operation due to control damage,
• there is a need for replacement of the control rail after fuel system diagnostics,
• it is important to maintain the original architecture of the injection system in the Mercedes W204 with the OM651 engine.

Selecting the module according to the manufacturer's designations ensures full compatibility with the vehicle's factory configuration.

Technical Support and Injection System Diagnostics

When replacing the injector control rail, it is advisable to perform a full diagnosis of the fuel system and control electronics. It may be helpful to consult expert materials regarding the symptoms and consequences of diesel injector failures – the article Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails discusses these in detail. For those interested in a broader perspective on the construction and operation of the fuel system, the material Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair will also be useful.

Related Mercedes Injector Nozzles

If you are also planning to replace other system components during the repair, it is worth considering selecting Mercedes injector nozzles from the same product line. Check the available Mercedes injector nozzles to assemble a complete set of injection system components based on this brand's parts.