Mercedes W204 C207 W212 E250 M271.860 204HP Engine ECU Kit A2711500391 Automatic

Mercedes W204 C207 M271.860 204HP Engine Module Kit A2711500391 Automatic is a complete set from the Electronic Control Modules and Controllers group, designed for a gasoline engine unit working with an automatic transmission. The kit provides a practical service solution for Mercedes vehicles requiring a consistent, factory-standard engine control system.

Specifications and technical data

• SKU: A2711500391-13
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2711500391
• Substitutable numbers: A2711500391, A 271 150 03 91, A0034468840, A 003 446 88 40, 5WK91301, A2075450108, A 207 545 01 08, A2049005912, A 204 900 59 12
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Module Purpose and Characteristics

The engine module kit is designed to work with the M271.860 engine unit, producing 204 HP, in Mercedes C-Class and E-Class Coupe models (W204, C207) with gasoline engines. Using a complete control set ensures consistency in the operating parameters of the engine, automatic transmission, and other onboard systems.

This component belongs to the Electronic Control Modules and Controllers category, meaning it is responsible for processing signals from sensors, controlling fuel injection, ignition, and coordinating with the automatic transmission system. This ensures the vehicle maintains stable performance, proper running smoothness, and predictable responses to load.

Compatibility and OEM Selection

The offered kit is from the Mercedes range and complies with manufacturer designations, which simplifies selection by OEM number and interchangeable part numbers. In practice, this means the module can be matched to a specific vehicle configuration, considering the fuel type and transmission type.

When selecting, it is recommended to:

• verify compatibility by OEM number and reference numbers,
• check the engine configuration (M271.860, 204 HP),
• confirm that the vehicle is equipped with an automatic transmission and gasoline fuel system.

This selection method minimizes the risk of CAN network communication issues, engine control errors, and software incompatibilities.

Benefits of Using an Original Module

Using an original Mercedes control set ensures proper integration with the vehicle's electrical system and correct cooperation with other controllers. This is particularly important for gasoline engines with automatic transmissions, where the engine and transmission controllers exchange a significant amount of data in real-time.

Key benefits include:

• maintaining factory operating parameters for the engine and automatic transmission,
• calibration consistency with safety and comfort systems,
• reduced risk of adaptation and coding issues compared to aftermarket replacements.

Condition, Verification, and Preparation for Installation

This product is from the used electronic components group, which allows for a significant reduction in repair costs while maintaining original manufacturer specifications. Before installation, the standard service procedure is recommended: vehicle diagnostics, checking the electrical system, and preparation for potential programming or adaptation in the vehicle.

To better understand the principles of selecting and installing such components, it is worth consulting the Global Parts guide: used automotive electronics – ECU modules and second-hand sensors, which discusses compatibility, HW/SW designations, and practical application examples.

Mercedes Electronic Control Modules and Controllers

If you are looking for other Mercedes Electronic Control Modules and Controllers tailored to specific models of this brand, check out our dedicated offer: Mercedes Electronic Control Modules and Controllers. You will find a wide selection of engine, transmission, and other vehicle system controllers there, which will facilitate comprehensive service for your car.

For a fuller understanding of the benefits of using original parts, it is also worth reading the Global Parts article: OEM quality guarantee and safety in used car parts, which describes why original components are a safe and economical choice for Mercedes vehicle repairs.