Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU Kit A6519000700 Key Lock

Complete ECU engine controller set with key and lock for Mercedes Sprinter W906 313 CDI with OM651.955 unit is a professional solution for diesel-powered vehicles. This item from the Electronic Control Units and Controllers group ensures consistent operation of the engine control system, immobilizer, and starting system, facilitating the repair or replacement of factory electronics in the vehicle.

Specifications and technical data

• SKU: A6519000700-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6519000700
• Substitutable numbers: A6519000700, A 651 900 07 00, A6519010600, A 651 901 06 00, A9069004100, A 906 900 41 00, A0375456132, A 037 545 61 32, KZ
• Fuel type: Diesel
• Category: ECUs & Computer Modules

Purpose and Function of the ECU Set

The described ECU set is dedicated to Mercedes Sprinter W906 vehicles, specifically the 313 CDI version with the OM651.955 engine producing 129 HP, powered by Diesel fuel. The set includes the electronic engine controller along with a matching key and lock, which helps maintain the integrity of the vehicle's security system and reduces the need for a complete system reprogramming from scratch.

A set configured in this way is particularly useful in situations where the original controller has been damaged, there are issues with the immobilizer, or incorrect communication between modules within the powertrain system. Using a single, cohesive set minimizes the risk of software conflicts and speeds up the diagnostic and vehicle startup process after repair.

Benefits of Using an Original Mercedes Module

As a Mercedes branded component, the ECU set is designed for full compatibility with the CAN bus and other electronic modules in the Sprinter W906. This means:

• maintaining the factory operating parameters of the OM651.955 unit,
• correct handling of starting and security functions,
• consistency with the vehicle's electrical architecture without the need for extensive wiring modifications.

This makes the set a practical service solution for workshops specializing in automotive electronics, as well as for owners who want to restore full functionality to the engine control system in their Sprinter, while preserving the performance characteristics typical of the factory configuration.

Application in Diesel Powertrains

The OM651.955 engine is a modern diesel unit where precise electronic control is crucial for operating parameters such as fuel injection, boost pressure, and exhaust emission control. The ECU controller used here is responsible for:

• coordinating the operation of the diesel engine's injection system,
• managing the engine's operating modes under various load conditions,
• interacting with other modules responsible for driving safety and comfort.

The complete set with key and lock facilitates the restoration of correct communication throughout the system, which is especially important after major electronic failures or the replacement of multiple components within the powertrain.

Product Characteristics and Condition

The presented ECU set belongs to the Electronic Control Units and Controllers group and is a used part, meaning it has been dismantled. Such components are often chosen for professional repairs because they allow for the preservation of the original manufacturer's specifications while reducing costs compared to new parts. The set includes the engine controller along with associated security system elements, which simplifies installation and configuration in the vehicle.

For automotive electronics workshops, it is also important that the controller has an assigned OEM part number and interchangeable numbers, which facilitates verification of compatibility with a specific version of the Sprinter W906 313 CDI and allows for selecting the correct part for a given year and vehicle configuration.

Integration with Other Modules and Additional Information

In modern Mercedes vehicles, communication between the engine controller and other modules (e.g., comfort systems, safety systems, or energy management) is continuous. Using an original ECU set with a key and lock helps minimize adaptation problems, communication errors, and software incompatibilities that often arise when attempting to install random, incomplete controllers.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as controllers, comfort modules, or engine management units, check the available parts in the Mercedes Electronic Control Units and Controllers category.

For those interested in a broader context of automotive electronics repair and the use of dismantled parts in advanced control systems, an article describing work with modules and controllers in other premium brands may be helpful – especially regarding diagnostics and configuration. You can find more on this topic in the material: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models Using Dismantled Parts?.

If you want to better understand why original, used OEM components are often a sensible choice for repairing advanced electronic systems, it is also worth reading the guide: OEM Quality and Safety Guarantee – Why Used Original Car Parts Are the Best Choice for Your Car?.