Mercedes R171 SLK200 M271.944 Engine Control Unit ECU Kit A2710106644 Key Lock

Mercedes R171 SLK200 M271.944 Engine Control Unit ECU Kit is an advanced component from the Electronic control modules and controllers category, designed for precise engine management. The kit ensures the consistency of the powertrain electronics and the immobilizer system, which facilitates the restoration of full vehicle functionality after a factory controller failure.

Specifications and technical data

• SKU: A2710106644
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2710106644
• Substitutable numbers: A2710106644, A 271 010 66 44, 5WK90548, A2115452308, A 211 545 23 08
• Category: ECUs & Computer Modules

Application and function in the powertrain

The presented Mercedes R171 SLK200 M271.944 Engine Control Unit ECU Kit is intended for the Mercedes SLK R171 generation model with the M271.944 engine, where it is responsible for coordinating all key parameters of the powertrain's operation. The controller communicates with sensors and auxiliary modules, supervising, among other things, fuel dosage, ignition, and engine protection strategies.

Combining the controller with a matched ignition lock and key allows for maintaining the integrity of the vehicle's security system, minimizing the risk of start authorization issues after replacing the electronics. This solution is particularly useful in cases of major factory ECU malfunctions or when a comprehensive replacement of control components is necessary.

Benefits of using a complete ECU + ignition lock + key kit

Using a complete kit offers a number of practical advantages compared to replacing a single module:

• consistency of engine control electronics and the immobilizer,
• reduced need for complex programming in the vehicle,
• decreased risk of conflicts between comfort, engine, and security modules,
• easier diagnostics during subsequent service inspections.

For workshops specializing in the Mercedes brand, such a kit is an effective service solution, allowing for shorter repair times and limiting the number of potential failure points in the electronic system.

Technical characteristics and compatibility

The product belongs to the Electronic control modules and controllers group, which means it works with the vehicle's communication buses and other onboard modules. In practice, this translates into:

• proper communication with the vehicle's electrical installation,
• support for diagnostic functions via standard service interfaces,
• the ability to integrate with the existing electronics architecture in the Mercedes SLK R171.

Due to the specificity of Mercedes electronics, when selecting a kit, it is worth paying attention to compatibility with the specific M271.944 engine version and the vehicle's model year. This helps avoid software issues and differences in equipment configuration.

Condition, verification, and practical application

The offered set comes from the used components segment, which makes it an attractive cost-effective alternative to new OEM parts. Before installation, a standard diagnostic procedure in the vehicle is recommended to confirm proper communication with other modules and the absence of errors in the controller's memory.

For users and workshops planning the conscious use of second-hand electronics, the Global Parts guide will be particularly useful – Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?, which discusses selection by part numbers, compatibility issues, and practical installation scenarios.

Expanding work in the field of Mercedes electronics

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as additional controllers, auxiliary modules, or powertrain management systems, check the available parts in the Mercedes electronic control modules and controllers category.

Summary

Mercedes R171 SLK200 M271.944 Engine Control Unit ECU Kit is a functional solution for vehicles requiring the replacement of powertrain control electronics along with the security system. The kit allows for reducing repair time, minimizing the scope of programming, and maintaining the consistency of the electronic system, which is particularly important in modern Mercedes designs with an extensive network of control modules.