Mercedes W245 M266.920 Petrol 95HP Engine Control ECU Kit A0014460340 Automatic

Mercedes W245 M266.920 Petrol 95HP Engine Control ECU Kit Automatic is an original electronic control module designed for petrol units paired with an automatic transmission. This specialized engine control unit ensures precise management of the powertrain, supporting stable operation, smooth acceleration, and predictable drivetrain responses. Choosing an original module from the Electronic control modules and controllers category is a sensible solution for repairs that require maintaining factory performance parameters.

Specifications and technical data

• SKU: A2661530391-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2661530391
• Substitutable numbers: A2661530391, A 266 153 03 91, A0024463140, A 002 446 31 40, 5WK90974, A1695452932, A 169 545 29 32, A1695452108, A 169 545 21 08
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and function of the engine control unit

The presented control unit is responsible for comprehensive management of the petrol engine, including fuel injection, ignition timing, and cooperation with the automatic transmission. This allows the powertrain to operate under stable conditions, while the throttle response remains predictable and consistent with the manufacturer's factory specifications. The module is a key component for the proper functioning of the injection and ignition systems, as well as for communication with other electronic systems of the vehicle. Using the correct control unit helps avoid issues with starting, rough idling, or improper cooperation with the automatic transmission.

Application in Mercedes vehicles

The control unit has been designed for Mercedes vehicles equipped with a petrol engine and an automatic transmission. The module's design is adapted to the electrical architecture of these models, which facilitates integration with the vehicle's wiring and communication with other controllers in the network. Proper matching of the module to the specific engine and transmission configuration has a direct impact on the durability of mechanical components and the comfort of driving. Selecting the right control unit is particularly important when resolving engine performance issues, fault codes stored in memory, or incorrect gear shifting.

Benefits of using an original module

Choosing an original control unit from the Electronic control modules and controllers category ensures the preservation of factory performance characteristics for both the engine and the automatic transmission. The module is prepared to work with the vehicle's existing electrical installation, which reduces the risk of compatibility issues and the need for additional modifications. The main advantages of this solution include:

• consistency of engine performance parameters with the manufacturer's specifications,
• proper communication with other controllers in the vehicle,
• possibility of diagnostics using standard service tools,
• maintaining predictable powertrain behavior under various operating conditions. A used module of this type is an economical alternative to a new part, allowing for reduced repair costs while maintaining the original technical specifications.

Integration with the vehicle's electronic system

The engine control unit works with sensors and actuators of the powertrain, processing signals from multiple sources in real-time. This enables precise control of the combustion process, which translates into stable operation of the petrol unit and correct cooperation with the automatic transmission. When replacing the module, it is important to follow installation procedures and perform any necessary adaptation in the vehicle, in accordance with the manufacturer's recommendations. A correctly selected and configured control unit allows for restoring full functionality of the powertrain after a failure or improper operation of the previous module.

Technical support and additional information

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 control modules, comfort controllers, or powertrain management systems, check the available parts in the Mercedes electronic control modules and controllers category. When working with advanced vehicle electronics, it is worth expanding your knowledge on diagnostics and the use of original control modules. Practical tips on working with engine control systems and other electronic modules can be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?, which discusses best practices for selecting and installing used control units. If you are considering repairing a car after a collision or a major failure and want to optimize costs, the guide Repairing a car after a crash: how to restore full efficiency using original used parts and not overpay? may also be helpful, as it describes the advantages of using original used components in professional repairs.