Mercedes W906 313 CDI OM651 129H Engine Module ECU Kit A6519003403 Manual

Engine Control Unit (ECU) Kit for Mercedes Sprinter W906 313 CDI with 129 HP OM651.955 Engine is a specialized set from the Electronic Control Modules and Controllers category, designed for vehicles with diesel engines and manual transmissions. This solution allows for professional repair of the powertrain control system, ensuring consistency between the electronics and the engine's operating parameters and auxiliary equipment.

Specifications and technical data

• SKU: A6519003403-5
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6519003403
• Substitutable numbers: A6519003403, A 651 900 34 03, A6519013502, A 651 901 35 02, A9065456408, A 906 545 64 08, A0375456132, A 037 545 61 32, A9069003303, A 906 900 33 03
• Fuel type: Diesel
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Intended Use and Compatibility

The presented ECU kit is designed to work with the 129 HP OM651.955 engine in the Mercedes Sprinter W906 313 CDI model. The module's design is adapted for operation with a diesel unit, which translates to proper control of fuel injection, boost pressure, the injection system, and engine protection systems. The module is intended for vehicles equipped with a manual transmission, ensuring that the engine control logic is consistent with the characteristics of a manual gearbox – both in terms of torque and drive protection strategies.

Function and Role of the ECU Module

The electronic engine control unit in this kit plays a crucial role in managing the powertrain's operation. It is responsible for, among other things:

• controlling fuel injection in the diesel engine,
• coordinating the operation of sensors and actuators in the engine area,
• handling strategies for starting, idling, and operation under load,
• monitoring operating parameters and recording any diagnostic errors. Thanks to this kit, it is possible to restore the correct operation of the engine control system in case of damage to the original module or communication problems within the vehicle's wiring.

Kit Characteristics and Application Benefits

The ECU kit for the Sprinter W906 313 CDI is a cohesive service solution that facilitates the matching of electronics to a specific vehicle configuration. Using a module from the same family as the factory controller helps reduce the risk of software incompatibilities, differences in auxiliary equipment configuration, or communication problems within the vehicle network. The main benefits of using this kit include:

• dedication to diesel engines – the controller is prepared for the specifics of a diesel unit,
• adaptation to manual transmissions – the ECU's operating logic takes into account the characteristics of a manual gearbox,
• the possibility of professional engine control system repair without the need for costly replacement of the entire wiring harness or auxiliary equipment.

Product Condition and Service Application

The offered ECU kit is a used component, making it an attractive cost alternative to new parts while maintaining the functionality required for service applications. This type of solution is particularly useful for repairing fleet vehicles, commercial vehicles, and high-mileage units where a reasonable balance between cost and repair effectiveness is important. Before installation, it is recommended to perform standard workshop procedures, such as verifying the electrical system, checking grounds and power supply, and – if necessary – adapting the controller's configuration to the specific vehicle according to the manufacturer's procedures.

Technical Support and Module Selection

To correctly select the controller for a specific Sprinter unit, it is advisable to use the manufacturer's markings, the VIN, and information about the engine and gearbox configuration. This helps avoid problems with software and equipment compatibility. If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as engine controllers, powertrain control modules, or other electronic control units, check the available parts in the category Mercedes Electronic Control Modules and Controllers. Additional information on selecting, installing, and verifying used controllers can be found in the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?. If you want to learn more about the aftermarket and clear up any doubts regarding the quality of used components, the article Used Car Parts: Myths and Facts You Need to Know, which discusses the practical aspects of operating such components, may also be helpful.