Mercedes W203 C180 Kompressor 271.946 143HP Engine ECU Kit A2711535291 Key Lock

Mercedes W203 C180 Kompressor 271.946 143HP Engine ECU Kit Key Lock is a complete engine control set designed for the supercharged petrol unit in the C-Class model. It includes an electronic control unit from the Electronic control modules and controllers group, as well as immobilizer components, which facilitates a seamless replacement of the entire system. This is a practical solution for workshops and users who want to restore proper engine operation without time-consuming adaptation of individual components.

Specifications and technical data

• SKU: A2711535291-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2711535291
• Substitutable numbers: A2711535291, A 271 153 52 91, A0014466902, A 001 446 69 02, 5WK90582, A2095453308, A 209 545 33 08, A0355457732, A 035 545 77 32
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the ECU kit

The presented engine control unit kit is dedicated to the supercharged petrol unit in the W203 generation Mercedes C-Class, in the 143 HP version. The kit includes a controller integrated with the vehicle's security system (key, ignition lock), allowing it to be transferred as a complete set while maintaining the consistency of the immobilizer data.

The ECU module is responsible for precise engine management, including fuel injection, ignition, and cooperation with the automatic transmission. This ensures stable engine performance, correct throttle response, and proper communication with the vehicle's other electronic systems.

Benefits of using a complete kit

Using a complete controller kit with a key and ignition lock significantly simplifies the engine control system repair process. In many cases, this avoids time-consuming immobilizer programming and matching individual modules, which is particularly important in vehicles equipped with complex electronics.

For workshops and service centers specializing in the Mercedes brand, such a kit is a convenient service solution that can reduce vehicle downtime and limit the risk of communication issues between modules. For the end user, this means a more efficient repair and greater predictability of the final result.

Compatibility with petrol engine and automatic transmission

The discussed ECU kit is intended for a petrol engine, meaning its software and configuration are adapted to the characteristics of a spark-ignition unit with a supercharger. The controller works with an automatic transmission, ensuring data exchange between the powertrain and the gearbox, which affects the smoothness of gear changes and the overall refinement of the system.

Before installation, it is recommended to verify compatibility using the OEM number and interchangeable numbers, as well as to compare the configuration with the vehicle's original equipment. This ensures that the hardware and software parameters match the specific engine version and transmission used.

Characteristics of the used control module

As a secondary market item, the ECU kit with key and ignition lock is an economical alternative to new components. A used module can be a good choice when repairing vehicles that are several or more years old, where it is crucial to maintain reasonable service costs while ensuring the proper functionality of the control system.

During installation, it is worth commissioning the setup and any necessary adaptation to a specialized workshop equipped with appropriate diagnostic software. This will allow for verifying communication with other modules in the vehicle and checking that all functions related to starting, the immobilizer, and cooperation with the automatic transmission are working correctly.

Support in selecting used electronics and related products

Selecting the right engine controller, especially in the case of used modules, requires considering the OEM number, interchangeable numbers, and hardware configuration. To better understand the principles of selection, compatibility, and installation of such components, it is worth reading the guide: Used automotive electronics – ECU modules and second-hand sensors, which discusses practical aspects of working with onboard electronics.

If you are planning a comprehensive repair or upgrade of the engine control area in your Mercedes and need other items from the same group, such as engine controllers, comfort modules, or other ECU units, check the available parts in the Electronic control modules and controllers Mercedes category.