Mercedes S212 C207 E350 CGI 272983 291 HP Engine Control ECU Kit A2729001300

Mercedes S212 C207 E350 CGI 272983 291 HP Engine Control ECU Kit is an original electronic control module designed for advanced engine management in Mercedes E-Class models. This item from the Electronic control modules and ECUs category is responsible for precise fuel metering, ignition control, and communication with other vehicle systems, ensuring stable and predictable engine performance. Choosing a factory-original ECU is a particularly beneficial solution for professional repairs or restoring the vehicle's factory operating parameters.

Specifications and technical data

• SKU: A2729001300-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2729001300
• Substitutable numbers: A2729001300, A 272 900 13 00, 0261S02743
• Category: ECUs & Computer Modules

Function and application of the engine control unit

The engine control unit used in the Mercedes S212 and C207 E350 CGI is responsible for the comprehensive management of the high-power gasoline engine. The module collects signals from sensors, analyzes them in real-time, and controls actuators such as fuel injectors or the ignition system. This allows for maintaining proper dynamics, smooth operation, and optimal fuel consumption while remaining compliant with factory control maps.

A properly selected ECU allows you to:

• restore correct starting and stable idle speed,
• ensure proper throttle response,
• maintain compatibility with safety and comfort systems,
• minimize the risk of error codes stored in the diagnostic memory.

Benefits of using an original Mercedes module

The original ECU designed for Mercedes ensures full compatibility with the vehicle's electrical system and factory wiring harnesses. This is particularly important in modern gasoline engines, where engine electronics interact with the automatic transmission, safety systems, and comfort modules. Using a module from the same family of solutions helps reduce communication issues within the CAN network and facilitates adaptation during programming.

The item from the Electronic control modules and ECUs category is a good choice whenever the original ECU has been damaged, flooded, subjected to a power surge, or suffered from failed programming attempts. In many cases, replacing it with a functional ECU is faster and more predictable than attempting to repair heavily damaged electronics.

Product characteristics and preparation for installation

The presented ECU is a used item, which in practice means it has been removed from a vehicle and verified for further serviceability. This type of solution allows for a favorable cost-to-functionality ratio while maintaining the manufacturer's original specifications. The module is intended for further service processing – depending on the procedure used in a given workshop, it may require software matching, immobilizer adaptation, or memory cloning.

Before installation, it is recommended to:

• verify the compatibility of the ECU with the specific engine version and vehicle year,
• plan the programming or cloning procedure at a specialized service center,
• check the condition of the electrical installation to rule out the cause of the original failure.

Why choose used engine electronics?

In the case of Mercedes engine control units, choosing a used module is often a reasonable alternative to purchasing a new unit. You receive a component with a factory design that maintains original operating parameters at a significantly lower investment cost. For many workshops and private users, this is a way to perform an economical yet technically sound repair, especially when the priority is to restore the car to working order without unnecessary modifications.

If you want to better understand when choosing a used ECU is cost-effective and how to safely select such an item for your car, check out our guide: The second life of electronics – when is it worth choosing used engine ECUs, comfort modules, and parking sensors?

Expanding repairs in the area of Mercedes electronics

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, management modules, or related electronic systems, check out the available parts in the Mercedes electronic control modules and ECUs category.

When planning a wider range of work on your car, you can also take advantage of practical tips on sourcing used components in one place – more information can be found in the article: Comprehensive supply: From the engine to the smallest clip – how to source used car parts in one place?