Mercedes W204 C180 BlueEFFICIENCY M274.910 156HP Engine Unit ECU A2749000700

Mercedes W204 C180 BlueEFFICIENCY M274.910 Engine Unit ECU is a specialized component from the Electronic control modules and controllers category, designed for precise management of the powertrain in Mercedes vehicles. It enables stable, optimized operation of the gasoline engine working with an automatic transmission, ensuring consistent performance of all key components.

Specifications and technical data

• SKU: A2749000700
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2749000700
• Substitutable numbers: A2749000700, A 274 900 07 00, 0261S06039, 0 261 S06 039
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the engine control unit

The engine control unit in the C180 BlueEFFICIENCY model with the M274.910 unit is responsible for coordinating gasoline engine operating parameters, such as fuel dosage, ignition timing, or response to sensor signals. In combination with the automatic transmission, it creates a cohesive system that ensures smooth acceleration, engine refinement, and predictable vehicle behavior under various road conditions.

This component is crucial when replacing a faulty ECU, restoring proper communication between the engine, automatic transmission, and other electronic vehicle systems. This makes it possible to eliminate issues with starting, rough engine operation, or errors stored in the diagnostic memory.

Benefits of using an original Mercedes module

Using a controller dedicated to a specific gasoline engine and automatic transmission configuration allows for maintaining the factory operating characteristics of the powertrain. This means predictable throttle response, correct gear shifting, and compliance with factory control maps.

The original module from the Electronic control modules and controllers category also ensures high compatibility with the factory electrical installation, which facilitates installation and reduces the risk of CAN bus communication issues. For workshops and users, this means shorter service time and greater predictability of the final result after replacement.

Application in a gasoline system with an automatic transmission

In Mercedes vehicles with the M274.910 engine, the controller plays a particularly important role in vehicles with an automatic transmission, where precise synchronization of engine and transmission operation is necessary. A correctly selected ECU module allows for:

• stable idle speed under various load conditions,
• smooth gear changes without jerking,
• consistent cooperation with safety and comfort systems,
• maintaining fuel consumption parameters in accordance with the gasoline unit's design assumptions.

As a result, the car retains proper dynamics, and the powertrain responses remain consistent with the manufacturer's factory specifications.

Product characteristics and part selection

The presented controller belongs to the Electronic control modules and controllers group, which means it works with an extensive network of sensors and actuators in the vehicle. When selecting a module for a specific Mercedes W204 C180 BlueEFFICIENCY, it is crucial to match it to the gasoline engine version and the automatic transmission configuration to avoid coding and adaptation problems.

The product comes from the used components segment, which is an attractive cost-effective solution while maintaining the manufacturer's original specifications. For many users and service centers, this is a reasonable compromise between price and maintaining consistency with the vehicle's factory electronic architecture.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as controllers, powertrain management modules, or controllers working with the drivetrain, check the available parts in the Mercedes electronic control modules and controllers category.

Expert support and selection of used electronics

When choosing a used engine controller, it is worth paying attention to compatibility with the vehicle configuration and the programming and adaptation procedures. To better understand when it is worth opting for used ECU modules and how to select them safely, read our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

If you want to learn more about the advantages of using original, used components in cars of this brand and find out how to maintain high comfort and durability without excessive service costs, also check out the article Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?