Mercedes W204 C 220 CDI 651.911 170HP Engine Control ECU Kit A6519007500 Manual

Mercedes W204 C 220 CDI 651.911 170HP Engine Control ECU Kit for the manual transmission version is a precision electronic control module designed to work with the diesel unit. This solution is dedicated to the Diesel system, allowing for the restoration of proper engine operation and parameter management functions in accordance with the manufacturer's standards.

Specifications and technical data

• SKU: A6519007500-12
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6519007500
• Substitutable numbers: A6519007500, A 651 900 75 00, A0064461540, A 006 446 15 40
• Fuel type: Diesel
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the ECU

The presented ECU kit is an item from the Electronic control modules and ECUs group, responsible for comprehensive management of the powertrain in the Mercedes C-Class W204 generation, C 220 CDI 651.911 version with 170 HP. The module monitors, among other things, fuel injection, engine accessory operation, and cooperation with other vehicle systems, ensuring stable performance characteristics of the diesel unit.

Thanks to being matched to the specific Diesel powertrain configuration and manual transmission, the ECU allows for maintaining the correct control maps and powertrain logic, which is important when performing repairs after engine electronics failure or when replacing a damaged module.

Benefits of using an original ECU module

Using an original ECU in a Mercedes W204 C 220 CDI allows for maintaining the consistency of engine performance parameters with the manufacturer's factory specifications. In practice, this translates into:

• proper cooperation with diesel unit accessories,
• stable starting and smooth engine operation across the full load range,
• maintaining the appropriate torque characteristics for the 170 HP version,
• correct communication with other vehicle electronic systems.

As an element from the ECU category, the module is designed for long-term operation in the demanding conditions of a diesel unit, making it a practical choice for professional powertrain repairs.

Compatibility with Diesel powertrain and manual transmission

The presented ECU kit is intended for configurations where the diesel engine works with a manual transmission. This means that the control logic takes into account the specifics of the drivetrain in this version, including load response, acceleration characteristics, and cooperation with driver assistance systems.

Proper matching of the ECU to the fuel type and transmission type is crucial for avoiding communication errors in the vehicle network and for maintaining predictable car behavior during daily use.

Product condition and use in repairs

The offered module belongs to the group of used Electronic control modules and ECUs, which allows for an economical yet technically correct repair of the engine control system. This type of solution is often chosen in situations where the factory ECU has been damaged due to electrical overload, water ingress, or other faults typical of automotive electronics.

Before installation, it is recommended to perform standard workshop procedures, such as verifying compatibility with the vehicle, and potential programming or adaptation to a specific car, in accordance with Mercedes service procedures.

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 controllers, engine management modules, or accessory control units, check the available parts in the Mercedes electronic control modules and ECUs category.

More about the role of original ECUs in modern cars

Modern cars, regardless of the brand, increasingly rely on advanced electronic modules. If you want to better understand how original components affect the character and behavior of a vehicle, it is worth looking at expert materials – a good starting point would be the article Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?, which shows the importance of properly selected controllers and modules in modern designs.

For a broader perspective on the subject of selecting used electronic and mechanical components in popular car models, you can also check out the guide The best used car parts – a guide to the most frequently chosen original parts for popular car brands and models, which helps in consciously planning vehicle repairs and upgrades.