Mercedes W204 C200 M271.950 184HP Engine ECU Kit A2711502879 Ignition + Key Lock

Mercedes W204 C200 M271.950 184HP Engine Computer A2711502879 Kit is a specialized set from the Electronic Control Modules and Controllers group, designed for precise management of the powertrain in Mercedes vehicles. The kit is dedicated to a gasoline engine paired with an automatic transmission, ensuring consistent control of operating parameters and stable communication with other vehicle systems.

Specifications and technical data

• SKU: A2711502879-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2711502879
• Substitutable numbers: A2711502879, A 271 150 28 79, 5WK90714, A2710107246, A 271 010 72 46, A2045451308, A 204 545 13 08, A2045455752, A 204 545 57 52
• Fuel type: Petrol
• Gearbox type: Automatic
• ECU type: Engine Control Unit
• Category: ECUs & Computer Modules

Purpose and Function of the ECU Kit

The presented engine computer kit has been developed as an Engine Control Unit to manage the powertrain in the Mercedes W204 C200 model with the M271.950 engine producing 184 HP. It is responsible for analyzing sensor signals, selecting fuel dosage, ignition timing, and cooperating with the automatic transmission, which translates into smooth engine operation characteristics and predictable responses to load.

As an element from the Electronic Control Modules and Controllers category, the ECU kit plays a crucial role in the vehicle's electrical architecture, integrating engine control with other onboard modules. This allows for consistent communication within the vehicle network and correct operation of functions dependent on powertrain parameters.

Compatibility and Interchangeable Numbers

The engine computer in this kit is designed for compatibility with a specific configuration of a gasoline engine and automatic transmission. The parts system includes interchangeable numbers, which facilitates the selection of the appropriate module based on service documentation or manufacturer data. This allows the kit to be matched to the vehicle by both OEM number and reference numbers used in technical catalogs.

In practice, this means that with proper verification by VIN or part numbers, the ECU kit can be used as a suitable replacement within the compatibility group specified by the manufacturer. This minimizes the risk of communication problems in the vehicle network and reduces the need for additional installation modifications.

Fuel Type, Transmission, and Operating Characteristics

The presented engine computer kit is intended for a powertrain powered by gasoline fuel, which is important for ignition maps, fuel delivery strategies, and the operation of exhaust emission control systems. The module's software and configuration are adapted to the specifics of gasoline engine operation, ensuring stable RPMs, predictable throttle response, and correct cooperation with the ignition system.

An important aspect is also the kit's dedication to vehicles equipped with an automatic transmission. The Engine Control Unit communicates with the transmission control module, transmitting information about load, rotational speed, and torque, which allows for proper gear selection and smooth gear changes. This configuration contributes to driving comfort and reduces undesirable jerks during acceleration.

Benefits of Choosing a Used ECU for Mercedes

Using a used engine computer kit for a Mercedes W204 C200 is a solution that combines rational repair costs with the preservation of the vehicle's original electronic architecture. A properly selected ECU module from the same hardware and software family allows for the restoration of full engine control system functionality without the need to resort to cheaper, uncertain quality alternatives.

Before installation, it is recommended to verify compatibility by part numbers and consult with an automotive electrician or diagnostician who can assess the need for adaptation, coding, or immobilizer matching. This approach minimizes the risk of communication errors in the CAN network and problems with starting the vehicle after module replacement.

To better understand how to safely select and install used control modules, it is worth reading the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?. The article explains compatibility issues, selection by VIN/OEM, and practical installation aspects.

Expanding the Control System in a Mercedes

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 additional controllers, modules cooperating with the ECU, or related electronic units, check the available parts in the Mercedes Electronic Control Modules and Controllers category.

If you are planning a broader scope of service work on the vehicle, covering both the powertrain and other components, a practical purchasing guide may also be helpful: Comprehensive Sourcing: From Engine to the Smallest Clip – How to Assemble Used Car Parts in One Place?. This will help you more easily plan the full range of parts needed for repairs in a single purchasing process.