Mercedes W204 C180 156HP Kompressor M271.910 Engine ECU Kit A2711502779 Key

Mercedes W204 C180 156HP Kompressor M271.910 Engine ECU Kit is a control set designed for the C180 Kompressor powertrain with the M271.910 engine, including the engine control unit and a matched key. The set belongs to the Electronic control modules and controllers group, which ensures consistent communication with the vehicle's electrical system and proper operation of security systems. It is a practical solution for workshops and users who need a functional, factory-spec ECU kit with a key for a specific Mercedes W204 configuration.

Specifications and technical data

• SKU: A2711502779-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2711502779
• Substitutable numbers: A2711502779, A 271 150 27 79, 5WK90729, A2075450108, A 207 545 01 08
• Category: ECUs & Computer Modules

Application and function of the ECU kit with key

The presented engine control unit set with a key is designed to support the C180 Kompressor M271.910 powertrain in the W204 body style. It is responsible for processing sensor signals, controlling engine operation, and interacting with the immobilizer system, ensuring the vehicle maintains correct performance parameters and anti-theft protection. Combining the ECU with a matched key facilitates installation and reduces the need for time-consuming programming from scratch.

Benefits of using an original control module

Using an original electronic control module in a Mercedes W204 allows for maintaining compatibility with the factory electrical architecture and the vehicle's communication network. The controller is prepared to work with the M271.910 engine, which promotes stable unit operation, correct fuel delivery, and proper response to load. For workshops, this means faster diagnostics, predictable system behavior, and the ability to use standard service procedures.

Product characteristics and condition

The ECU kit with key belongs to the Electronic control modules and controllers category, which highlights its role as a central element managing engine operation and communication with other vehicle systems. The product is in used condition, which in workshop practice often represents a favorable compromise between repair costs and maintaining the manufacturer's original specifications. Before installation, it is recommended to perform a standard verification of the vehicle's installation and basic diagnostics to ensure proper integration with the existing wiring and equipment.

Installation and operational tips

When replacing the ECU kit with key in a Mercedes W204 C180 Kompressor, it is worth paying attention to:

• proper connection of all electrical and ground connectors,
• checking the condition of wiring harnesses in the engine bay and cabin,
• performing computer diagnostics after installation to check for errors and current parameters,
• verifying the correct operation of the immobilizer and start functions.

This approach helps reduce the risk of improper engine operation and ensures stable control system performance in daily use.

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 related electronic units, check the available parts in the Mercedes electronic control modules and controllers category.

More about the role of original modules in modern cars

Modern vehicles, such as the Mercedes W204, rely heavily on the cooperation of multiple controllers responsible for the powertrain, comfort, and safety. Selecting the right, original modules is crucial for maintaining driving characteristics, engine refinement, and full functionality of onboard systems. If you are interested in how similar solutions affect the behavior of other premium brands and how used electronic components can restore a car's factory properties, read the article Audi and emotions in their purest form – how original modules and used parts help maintain the brand's DNA.