Mercedes W906 310CDI OM651.956 95HP Engine ECU Kit A6519002600 Key Lock Manual

Mercedes W906 310CDI OM651.956 95HP Engine ECU Kit Key Lock Manual is an engine control kit designed for diesel units with manual transmissions used in Mercedes vehicles. The set belongs to the Electronic control modules and ECUs category, meaning it is responsible for precise engine management and cooperation with the immobilizer and starting system.

Specifications and technical data

• SKU: A6519002600-5
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6519002600
• Substitutable numbers: A6519002600, A 651 900 26 00, A6519012200, A 651 901 22 00, R0414A009A, A9069004001, A 906 900 40 01
• Fuel type: Diesel
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the ECU kit

The presented ECU kit is dedicated to the OM651 series diesel engine with 95 HP, used in Mercedes W906 310CDI models. As a complete engine control package with locking elements and manual transmission support, it enables consistent operation of the injection system, control of engine operating parameters, and correct start authorization.

The kit includes an electronic engine control module and components related to the locking system and key, which allows for maintaining the integrity of the vehicle's security system. Thanks to this solution, it is possible to efficiently replace the complete control system without the need for deep interference in the existing electronic configuration of the vehicle.

Benefits of using a complete ECU kit

Using a complete ECU kit with a lock and key in a Mercedes vehicle with a diesel engine and manual transmission provides a number of practical benefits:

• consistency of engine electronics and the immobilizer system,
• maintaining compliance with the vehicle's factory electrical architecture,
• reducing the risk of problems with matching individual modules,
• facilitating diagnostics and configuration after installation.

For workshops and users, this means a more predictable replacement process and a lower risk of software conflicts between the engine controller and other modules in the vehicle.

Technical characteristics for diesel engines and manual transmissions

The ECU kit has been designed to work with a diesel unit, therefore it takes into account the specifics of diesel engine operation – injection control, combustion parameter monitoring, and communication with sensors responsible for safety and operational refinement. Integration with a manual transmission ensures correct data exchange between the controller and the drivetrain, which affects acceleration smoothness and the proper operation of engine protection functions.

Thanks to this, the kit is particularly useful when replacing a damaged controller in vehicles used intensively, e.g., in delivery applications, where the stability and predictability of the engine's operation are of key importance for daily use.

Condition, verification, and practical application

The product comes from the group of used automotive electronic components, which allows for cost-effective restoration of vehicle performance while maintaining the original system architecture. The kit is particularly attractive for workshops specializing in the Mercedes brand and for users looking for a solution that allows for the replacement of the complete engine control system along with related security components.

Before installation, a standard diagnostic procedure and matching the configuration to the specific vehicle unit, in accordance with the manufacturer's guidelines, is recommended. Such an approach allows for fully utilizing the potential of the kit and ensuring stable operation of the drivetrain in the long term.

Expansion of the control system and selection of electronics

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 additional controllers, management modules, or related control systems, check the available parts in the Mercedes electronic control modules and ECUs category.

When choosing a used ECU kit, it is worth paying attention to compatibility with the fuel type and transmission type, as well as the completeness of the elements included in the package. It is also good practice to consult with an automotive electrician or diagnostician who will assess the required scope of adaptation in the vehicle.

More about used automotive electronics

If you are considering using a used engine controller, comfort modules, or other electronic components in your car and want to better understand when this is a cost-effective solution and how to safely select such components, read our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.