Mercedes W205 C350 E 274.920 279HP Engine ECU Kit A2749000800 Key Lock Automatic

Mercedes W205 C350 E 274.920 279HP Engine ECU Kit Key Lock Automatic is a solution designed for the 279 HP petrol engine paired with an automatic transmission. The kit is tailored to the specific requirements of this model's powertrain, facilitating the restoration of proper engine electronics and starting system operation. As a result, it provides a cohesive package of electronic components for the C-Class W205 series in the C350 version.

Specifications and technical data

• SKU: A2749000800-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2749000800
• Substitutable numbers: A2749000800, A 274 900 08 00, 0261S08785, 0 261 S08 785, A2059006330, A 205 900 63 30
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and kit configuration

The presented Mercedes W205 C350 E 274.920 279HP Engine ECU Kit Key Lock Automatic belongs to the Electronic control modules and controllers category and is prepared for use with the 274.920 petrol engine producing 279 HP. Integrating the engine ECU with the key and lock ensures the consistency of the immobilizer system and starting logic, which is particularly important in modern premium vehicles.

This solution is dedicated to versions with an automatic transmission, ensuring that the powertrain control logic is adapted to the characteristics of the gearbox, shift maps, and communication with other vehicle modules.

Benefits of using an original Mercedes module

Using an original control module in a Mercedes vehicle helps maintain the factory performance characteristics of the powertrain. A properly selected ECU:

• supports the correct operating parameters of the petrol engine,
• ensures compatibility with factory safety and comfort systems,
• facilitates diagnostics using dedicated service tools.

This makes the kit particularly useful when replacing a damaged controller, resolving starting issues, or restoring full functionality to the powertrain after an electronics failure.

Integration with the powertrain and vehicle electronics

In Mercedes W205 C350 vehicles with a petrol engine and automatic transmission, the engine ECU is responsible not only for fuel injection and ignition but also for communication with other vehicle modules. The ECU kit with key and lock ensures:

• consistency in immobilizer coding and the starting system,
• proper communication with modules responsible for the automatic transmission,
• stable operation within the vehicle's electronic control network.

Combining these elements into a single package reduces the risk of component mismatch issues and accelerates the repair process.

Use in service and repairs

The offered kit is suitable for professional workshops dealing with vehicle electronics and services specializing in the Mercedes brand. It enables:

• efficient replacement of a damaged engine controller in the W205 C350 model,
• restoration of proper starting system and security feature operation,
• reduction of time required for programming and matching individual components.

This makes it a practical solution for repairs where the compatibility of electronics with the specific configuration of the petrol engine and automatic transmission is crucial.

Brand, category, and selection of appropriate modules

For Mercedes vehicles, the correct selection of components from the Electronic control modules and controllers group has a direct impact on the reliability of the entire powertrain. 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 engine controllers, comfort modules, or transmission control units, check the available parts in the Mercedes Electronic control modules and controllers category.

More about the role of original modules in premium cars

The importance of properly selected electronic modules in premium cars is well illustrated by an article dedicated to the Audi brand, which describes how original components influence the preservation of a vehicle's character and driving properties. If you want to better understand why using the correct controllers and modules is so essential for maintaining the factory DNA of a car, read the material: Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?.