Mercedes C207 E350 CDI OM642.836 231HP Engine Control ECU A6429001100 Automatic

Mercedes C207 E350 CDI OM642.836 231HP Engine Control ECU is a specialized electronic control module designed for a diesel engine unit paired with an automatic transmission. It is responsible for the precise management of the diesel engine, ensuring stable parameters, proper communication with other vehicle systems, and consistency with the factory Mercedes configuration. As a result, it provides a solid foundation for the professional repair of the engine control system in C207 E350 CDI series models.

Specifications and technical data

• SKU: A6429001100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6429001100
• Substitutable numbers: A6429001100, A 642 900 11 00, A0064465940, A 006 446 59 40, 0281016351, 0 281 016 351
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and compatibility

The presented controller belongs to the Electronic control modules and ECUs group and has been designed to work with the 231HP OM642.836 engine in the C207 E350 CDI body style. The module's design is adapted for operation with an automatic transmission, which is crucial for the correct exchange of data between the ECU, the transmission, and the safety and comfort systems.

The unit is intended for a diesel-powered engine; therefore, its injection map, boost control strategies, and diagnostic logic are optimized for the Mercedes V6 diesel unit. Using the correct type of controller allows for maintaining compliance with factory settings and facilitates subsequent diagnostics using dedicated service tools.

Function in the drivetrain

The engine controller in this Mercedes model acts as the central computer managing the powertrain. Based on signals from sensors, it analyzes factors such as load, temperatures, accelerator pedal position, and rotational speed, and then controls the operation of the injectors, boost pressure, and interaction with the automatic transmission. This makes it possible to maintain proper dynamics, smooth operation, and compliance with emission standards provided for this configuration.

A properly selected ECU module helps restore the correct operation of the vehicle after a failure of the original controller, communication problems in the CAN network, or damage resulting from power surges. This is particularly important in modern Mercedes vehicles, where the engine controller works with many other electronic modules, creating a coherent powertrain and safety management system.

Application of a used ECU controller

The offered item is in used condition, which in practice means the possibility of an economical vehicle repair while maintaining the original electronic architecture. In many cases, using a verified controller from the secondary market is a beneficial solution, allowing for cost reduction compared to purchasing a new unit, while maintaining factory build quality.

Before installing this type of module in a Mercedes C207 E350 CDI, adaptation procedures and potential programming for the specific vehicle (coding, immobilizer matching, synchronization with other modules) must be taken into account. For this reason, it is recommended to work with a workshop experienced in dealing with Mercedes electronics and equipped with appropriate diagnostic software.

Benefits of using an original control module

Choosing an original engine controller for a Mercedes C207 E350 CDI ensures:

• preservation of factory control logic for the diesel engine and automatic transmission,
• consistency with other electronic modules in the vehicle,
• easier diagnostics and service using standard service tools,
• the ability to restore full functionality of the drivetrain after an ECU failure.

For users who want to take a conscious approach to purchasing electronics from the secondary market, practical tips on selecting and verifying such components will be useful – you can find them in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

Expansion of 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 control modules, auxiliary controllers, or controllers working with the ECU, check the available parts in the Electronic control modules and ECUs Mercedes category.