Mercedes W177 W247 220 260920 260.920 190HP Engine ECU A6549009600 Automatic

Mercedes W177 W247 220 260920 260.920 190HP Engine ECU is an advanced electronic control module designed for the precise operation of the powertrain in Mercedes vehicles with automatic transmissions. As a component from the Electronic control modules and controllers category, it is responsible for key processes in managing the gasoline engine's operation, ensuring stable parameters and consistent performance with the drivetrain. This used controller allows for an economical yet professional repair or replacement of a faulty ECU while maintaining the vehicle's original electrical architecture.

Specifications and technical data

• SKU: A6549009600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6549009600
• Substitutable numbers: A6549009600, A 654 900 96 00, A6549017600, A 654 901 76 00, 0281037274, 0 281 037 274
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Function and role of the engine controller

The presented ECU works in a system with the gasoline engine and automatic transmission, coordinating combustion parameters, throttle response, and interaction with other vehicle systems. It is responsible for processing signals from sensors, controlling engine accessories, and communicating with other electronic modules within the vehicle's network. This ensures smooth engine operation, predictable vehicle behavior, and compliance with factory control maps.

Benefits of using an original ECU

Using an original module from the Electronic control modules and controllers category allows you to maintain the factory logic of the drivetrain without the need for installation modifications. In practice, this means:

• maintaining compatibility with the vehicle's electrical installation and communication bus,
• consistent operation with the automatic transmission,
• possibility of adaptation and programming in accordance with Mercedes service procedures,
• reducing the risk of communication errors between modules.

The used controller is a sensible choice for repairs where a combination of OEM quality and service cost control is essential.

Application in Mercedes vehicles

Engine controller for the latest generation Mercedes A-Class and B-Class has been developed for gasoline engines paired with an automatic transmission. Its design and software are tailored to the characteristics of the 190HP engine, allowing for the maintenance of proper dynamics, refinement, and compliance with safety and comfort systems. Installation of this ECU is particularly recommended in the event of a factory module failure, communication issues within the vehicle network, or the need to restore proper engine operation after an electronics failure.

Condition and installation aspects

The module is offered as a used part, which allows for cost-effective repair without sacrificing the manufacturer's original specifications. Before installation, standard procedures related to programming, potential immobilizer matching, and synchronization with other vehicle controllers should be considered. Installation in a specialized service center equipped with appropriate diagnostic software for ECU adaptation is recommended.

Technical support and further information

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 injection control modules, transmission controllers, or engine management units, check the available parts in the Mercedes electronic control modules and controllers category.

For a better understanding of how original electronic modules affect driving characteristics and vehicle behavior, it is worth reading the article on our blog: Audi and pure emotion – how used OEM parts help maintain the brand's DNA. Although the text concerns a different brand, it clearly demonstrates the importance of factory controllers and modules in modern cars.