Description
The Mercedes A209 CLK290 M272.940 231HP Engine Control Unit for Automatic Transmission is a specialized electronic control module designed for a gasoline engine with an automatic transmission. This solution allows for the restoration of proper powertrain operation, maintaining the original engine operating characteristics and compatibility with the vehicle’s factory electronics.
Specifications and technical data
- SKU: A2721530692
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2721530692
- Substitutable numbers: A2721530692, A 272 153 06 92, A0034467640, A 003 446 76 40
- Fuel type: Petrol
- Gearbox type: Automatic
- Category: ECUs & Computer Modules
ECU Purpose and Function
The presented control unit belongs to the group of Electronic Control Modules and Units, responsible for precise management of gasoline engine operation in Mercedes models with automatic transmissions. The module coordinates, among other things, fuel delivery, ignition, and cooperation with safety systems, which translates into stable engine operation and predictable throttle responses.
As a dedicated component for a gasoline engine working with an automatic transmission, the control unit is optimized for smooth integration of engine operating strategies with gear shifting logic, which is important for both driving comfort and component durability.
Benefits of Using an Original Module
Using an original control unit in a Mercedes powertrain allows for the preservation of factory control maps and compatibility with other vehicle systems. In practice, this means:
- consistent operation with the electrical system and other modules in the vehicle,
- acceleration and pedal response characteristics consistent with the manufacturer’s specifications,
- proper cooperation with the automatic transmission,
- diagnostics using standard service tools.
For users, this means predictable vehicle behavior, and for workshops, it means easier configuration and faster vehicle startup after repair.
Technical Characteristics in the Context of Installation
The control unit is designed to work with a gasoline engine and an automatic transmission, which is crucial when selecting parts. Proper matching of the module to the specific drive configuration minimizes the risk of communication errors within the vehicle network and adaptation issues.
Before installation, it is recommended to verify compatibility with the vehicle and prepare for potential programming or adaptation procedures in the vehicle, in accordance with service practices for Mercedes engine control units.
Condition and Application in Repairs
The offered module is from the secondary market, making it an attractive solution for users and workshops seeking a compromise between repair cost and maintaining original manufacturer specifications. In case of engine electronics failures or communication problems in the powertrain, replacing the control unit with an original used part is often an effective alternative to purchasing a new unit.
If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as control modules, units, or ECUs, check the available parts in the Mercedes Electronic Control Modules and Units category.
More About the Role of Original Modules in Modern Cars
Modern premium cars rely heavily on advanced electronics, and engine control units play a central role in them. If you are interested in how properly selected used modules can preserve the brand’s character and factory driving quality, it is worth reading the article on our blog: Audi and Pure Emotion. How Used Parts Help Maintain the Brand’s DNA?. Although it concerns a different brand, it effectively illustrates the importance of original electronic modules in modern vehicles.
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