Mercedes W906 313 CDI OM646.986 129HP Engine Unit Module ECU Manual A6461506272

Mercedes W906 313 CDI OM646.986 129HP Engine Unit Module ECU is a factory electronic control unit designed for a diesel engine paired with a manual transmission. It is responsible for precise management of the diesel engine's operation, ensuring stable power characteristics, fuel injection control, and communication with other vehicle systems. This is an OEM solution for users who require compatibility with Mercedes' factory electronics architecture.

Specifications and technical data

• SKU: A6461506272
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6461506272
• Substitutable numbers: A6461506272, 0281015052, 0 281 015 052
• Fuel type: Diesel
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the control unit

The presented module belongs to the Electronic control units and controllers group and is dedicated to the Mercedes powertrain with a diesel engine. Its task is to collect signals from sensors, process them in real-time, and control actuators such as injectors, valves, or auxiliary systems. This allows the power unit to maintain proper operating parameters under various load and temperature conditions.

The control unit works with a diesel engine and a drivetrain based on a manual transmission, which is significant for torque control logic, fuel cut-off functions during gear changes, and integration with safety and comfort systems.

Benefits of using an original module

Using an original control unit in a Mercedes W906 allows for maintaining consistency with the factory software and vehicle configuration. In practice, this means:

• proper communication with the CAN network and other electronic modules,
• stable starting and idle operating parameters,
• correctly matched injection maps for the diesel engine,
• preservation of factory engine protection strategies.

As a used component, the module can be an attractive cost-effective alternative to new control units, while maintaining factory specifications and compatibility with the given drivetrain configuration.

Selection, installation, and vehicle integration

When selecting a control unit for a Mercedes W906 313 CDI, it is crucial to match it to the specific engine version and transmission type. The correct module for a diesel unit paired with a manual gearbox enables proper mapping of torque control strategies, fuel dosage, and diagnostic functions. In many cases, after installation, adaptation or programming using an appropriate diagnostic interface is required so that the control unit is correctly paired with the immobilizer and other vehicle systems.

Due to the nature of this electronic component, installation in a workshop environment is recommended, following procedures for protection against electrostatic discharge and proper wiring harness connection. A correctly selected and configured module allows for the restoration of full powertrain functionality after the failure of the previous control unit.

Expanding knowledge about electronic modules

If you are interested in a broader context of how engine control units and comfort modules work in modern cars, it is worth checking out practical tips regarding diagnostics and the use of dismantled parts using another brand as an example. Useful information can be found in the article about iDrive systems and electronic modules in BMW 3 and 5 series, where topics such as selecting and replacing control units are discussed.

Related Mercedes control modules

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 control units, powertrain management modules, or other electronic control systems, check out the available parts in the Electronic control units and controllers Mercedes category.