Mercedes W169 A180 266.940 Engine Control ECU Kit A2669000200 Key Lock Automatic

Mercedes W169 A180 266.940 Engine Control ECU Kit Key Lock Automatic is a complete solution from the Electronic control modules and controllers category, designed for precise management of the powertrain unit. The kit includes the engine control module along with the components necessary for integration with the steering lock and ignition system in versions with an automatic transmission, which facilitates matching to a specific vehicle configuration.

Specifications and technical data

• SKU: A2669000200-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2669000200
• Substitutable numbers: A2669000200, A 266 900 02 00, A0024463040, A 002 446 30 40, 5WK90981, A1695452932, A 169 545 29 32, A1695452308, A 169 545 23 08
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented ECU kit is dedicated to Mercedes A-Class W169 generation models in the A180 version, where it is responsible for coordinating the engine operation with the automatic transmission. The controller manages, among other things, fuel injection, ignition, auxiliary equipment operation, and communication with other vehicle modules, ensuring stable engine performance under various load conditions.

Combining the controller with the lock and key allows for maintaining consistency within the immobilizer system, which in practice facilitates installation and reduces the need for additional programming compared to replacing a single module.

Benefits of using a complete ECU kit

Using a complete engine controller kit with lock components and a key allows for a technically consistent restoration of the original electronics configuration in the vehicle. In practice, this means:

• maintaining compatibility with the factory vehicle security system,
• easier integration with the electrical installation and CAN network,
• reducing the risk of conflicts between comfort modules, the instrument cluster, and the ECU,
• better predictability of powertrain behavior after installation.

For users and workshops, this means a more predictable repair process and the ability to restore proper engine operation without interfering with additional electronic components.

Compatibility and selection by numbers

As an item from the Electronic control modules and controllers category, the kit has been designed to work with a specific engine version and transmission type. When selecting, it is crucial to compare the OEM part number and available interchangeable numbers with the vehicle data, which allows for verifying hardware and software compatibility with a given Mercedes configuration.

To better understand when choosing a used engine controller is justified and how to safely approach purchasing electronics, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

Additional tips on verifying compatibility by OEM numbers and ways to reduce risk when shopping online can be found in the article: Online parts shopping without risk – 5 proven ways to verify component compatibility by OEM numbers and paint codes.

Integration with automatic transmission

The presented kit is intended for vehicles equipped with an automatic transmission, which is significant for both the controller software and communication with the transmission control module. A correctly selected ECU ensures proper data exchange between the engine and the transmission, affecting the smoothness of gear changes, throttle response, and stability of operation in various driving modes.

For workshops specializing in Mercedes service, this means the ability to perform repairs in accordance with the manufacturer's specifications, without the need to adapt solutions intended for other powertrain configurations.

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 elements from the same group, such as additional control modules, auxiliary controllers, or controllers working with the ECU, check the available parts in the Mercedes electronic control modules and controllers category.

Such an approach allows for building a consistent set of powertrain electronics, which facilitates diagnostics, programming, and subsequent vehicle operation after the repair is completed.