Mercedes R171 SLK 200 163HP M271.944 Kompressor Engine ECU A2711539779 Automatic

Mercedes R171 SLK 200 163HP M271.944 Kompressor Engine ECU is a specialized kit from the Electronic control modules and controllers group, designed for precise management of the powertrain in Mercedes vehicles. The set includes the engine ECU along with the key, which facilitates matching to a specific vehicle and reduces the risk of immobilizer-related issues.

Specifications and technical data

• SKU: A2711539779
• Mark: Mercedes (Genuine OE)
• OEM Part Number: A2711539779
• Substitutable numbers: A2711539779, A 271 153 97 79, 5WK90511
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and technical specifications

The presented controller is dedicated to Mercedes vehicles with a petrol engine, working in conjunction with an automatic transmission. It is responsible for advanced control of the combustion process, fuel metering, ignition, and communication with other electronic modules in the vehicle, ensuring stable and predictable operation of the powertrain.

The set with the key allows for maintaining the consistency of the vehicle's security system, which is particularly important in modern electronic installations. This minimizes the need for additional programming compared to replacing a single module independently.

Benefits of using the ECU kit with key

Using a complete engine controller kit with a key in a Mercedes R171 brings a number of practical benefits:

• maintaining compatibility with the vehicle's factory electronic architecture,
• reducing issues with the immobilizer and key authorization,
• consistent operation with the automatic transmission,
• stable operating parameters of the petrol unit,
• easier diagnostics during subsequent inspections.

For workshops specializing in the Mercedes brand, such a kit is a convenient service solution, allowing for reduced repair time and limiting the number of potential points of failure in the electronic system.

Integration with vehicle systems

The ECU controller in this kit is a central element for communication between the engine, the automatic transmission, and other modules from the Electronic control modules and controllers group. A properly selected and configured module affects:

• smooth gear shifting in the automatic transmission,
• throttle response,
• idle speed stability,
• coordination of driver assistance systems.

Proper integration with the original Mercedes electrical installation allows for maintaining the driving characteristics intended by the manufacturer, which is particularly important in models with a more dynamic powertrain setup.

Application in service practice

For private users, the ECU kit with a key is a way to restore proper engine operation after a controller failure or issues with security electronics. For professional services and workshops specializing in Mercedes, it is a convenient, repeatable solution that facilitates the standardization of repair procedures and limits the number of unsuccessful programming attempts.

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 systems working with the ECU, check the available parts in the Mercedes electronic control modules and controllers category.

Technical support and additional information

Although the described product concerns the Mercedes brand, it is worth familiarizing yourself with the general principles of selecting and installing original electronic modules in premium class cars. For example, in an article dedicated to the Audi brand, you will find practical tips on maintaining the vehicle's factory character and the role of original electronic components – more information can be found in the material Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?.