Mercedes W213 Engine Control ECU BCM Kit 2.0D 194HP Automatic A6549003200

Mercedes W213 Engine Control ECU BCM Kit 2.0D 194HP Automatic is a specialized component from the Electronic control modules and controllers group, designed for precise management of the diesel powertrain in cooperation with an automatic transmission. The kit ensures consistent operation of the drivetrain, which translates into stable power characteristics, predictable throttle response, and proper interaction with the vehicle's other electronic systems.

Specifications and technical data

• SKU: A6549003200-3
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6549003200
• Substitutable numbers: A6549003200, A 654 900 32 00, A6549012600, A 654 901 26 00, 0281033490, 0 281 033 490, A 654 900 96 00, A6549009600, A2229054809, A 222 905 48 09, A2139005220, A 213 900 52 20
• Fuel type: Diesel
• Gearbox type: Automatic
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented controller is dedicated to a diesel powertrain, where precise control of fuel injection, boost pressure, and auxiliary equipment parameters is crucial. In combination with an automatic transmission, the module is responsible for:

• coordinating engine operation with gear shift logic,
• maintaining stable RPM under various load conditions,
• proper handling of driving modes and gear shift strategies,
• communication with other controllers in the vehicle network. Thanks to this, the powertrain maintains proper operating refinement, and responses to driver inputs remain consistent with the model's factory characteristics.

Compatibility and replacement numbers

The controller belongs to the Mercedes OEM group of components, which means it maintains the original hardware architecture and software intended for this generation of powertrains. The presence of the part number and associated replacement numbers in the technical specification facilitates the selection of the correct module for a specific vehicle configuration, including the engine version and transmission type. Before purchasing, it is recommended to verify compatibility by part number and vehicle configuration (especially fuel type and transmission type) to ensure proper cooperation with the existing electrical installation and controller network.

Operating characteristics with diesel engine and automatic transmission

In diesel units, the controller plays a key role in controlling the combustion process, which affects dynamics, fuel consumption, and operating refinement. In combination with an automatic transmission, the module:

• manages torque during gear shifts,
• minimizes jerking and delays during downshifts,
• coordinates the operation of assistance systems, such as traction control or electronic stability programs,
• maintains operating parameters within the range specified by the manufacturer for this powertrain configuration. Such integration is particularly important in modern diesel systems, where many safety and comfort functions depend on correct communication between control modules.

Condition, verification, and service application

The item is offered as a used engine controller, which allows for an economical restoration of the powertrain's efficiency while maintaining the manufacturer's original specifications. This type of module is used both for standard replacement of a faulty controller and for advanced vehicle electronics repairs where matching a specific model configuration is required. In workshop practice, the controller may require adaptation, coding, or matching to the immobilizer in accordance with service procedures used in Mercedes vehicles. It is recommended to have the installation and configuration performed by a specialized service center equipped with appropriate diagnostic software.

Integration with other modules and system expansion

As an element from the Electronic control modules and controllers group, the product works with many vehicle systems – from safety and comfort systems to powertrain management. 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 transmission control modules, safety system controllers, or comfort management units, check the available parts in the Mercedes electronic control modules and controllers category. For users interested in a broader context of using original control modules in premium vehicles, an interesting supplement may be an article describing how properly selected electronic components help preserve the brand's character – more information can be found in the material Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?. If you are considering choosing components from the secondary market and want to better understand how to assess their suitability in terms of compatibility with the engine and transmission, the guide Is it worth investing in used car parts? will be helpful, which discusses, among other things, selection by VIN and differences between model versions.