Mercedes W212 E220 CDI 651.924 170HP Engine Unit ECU Kit A6519007500 2 Keys Lock

Complete Engine Control Unit (ECU) Kit with Ignition Lock and Two Keys for Mercedes W212 E220 CDI is a precisely matched, used module designed for the 651.924 engine with 170 HP. The set belongs to the Electronic Control Modules and Controllers group, ensuring seamless integration with the vehicle's factory electrical architecture.

Specifications and technical data

• SKU: A6519007500-18
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6519007500
• Substitutable numbers: A6519007500, A 651 900 75 00, A0064461540, A 006 446 15 40, KZ
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Application and Purpose of the ECU Kit

The presented control kit is dedicated to the diesel engine in the Mercedes E-Class W212 generation, specifically the E220 CDI version with the 651.924 engine producing 170 HP. It integrates the engine controller with immobilizer components, an ignition lock, and two keys, facilitating the restoration of full electronic system functionality after an engine unit failure or replacement.

This type of solution is particularly useful for repairs requiring the replacement of the entire engine control system without the time-consuming process of programming multiple individual components.

Technical Characteristics and Compatibility

The kit is designed for diesel vehicles, meaning the injection maps, boost pressure, and operating strategies are adapted to the specifics of diesel engines. The module's design accounts for cooperation with an automatic transmission, ensuring proper communication between the controller and the gearbox mechatronics, traction control system, and safety systems.

In practice, this means that after correct installation and adaptation in the vehicle, the kit allows for maintaining proper gear shifting logic, smooth starts, stable idle operation, and appropriate response to load across the entire RPM range.

Kit Construction and Benefits of Installation

The complete package includes the engine control unit along with vehicle security components, including the ignition lock and two keys, significantly simplifying the service process. This allows you to:

• minimize the risk of conflicts between the immobilizer and the controller,
• limit the scope of necessary programming to essential adaptations,
• obtain a cohesive set sourced from a single donor vehicle.

This approach is particularly beneficial for advanced electronics repairs where component compatibility within a single vehicle architecture is crucial.

Condition, Origin, and Identification Parameters

The component is from the Mercedes brand and is classified as used, allowing for an economical repair while maintaining the original manufacturer's specifications. The product has assigned OEM part numbers and interchangeable numbers that enable precise verification of compatibility with a specific vehicle configuration. Additionally, the SKU designation facilitates identification of the kit in the inventory system and speeds up the selection process.

Before purchasing, it is recommended to compare the identification data of the controller and the engine and gearbox configuration in your vehicle to ensure full compatibility with the 651.924 engine version at 170 HP.

Installation and Operational Guidelines

Due to the complexity of electronic systems in the Mercedes W212, it is advisable to entrust the installation of the ECU kit with the ignition lock and keys to a specialized service center equipped with the appropriate diagnostic software. Proper installation includes:

• physical mounting of the controller in the engine bay or designated module,
• replacement of the ignition lock and adaptation of keys to the vehicle's installation,
• adaptation and potential coding within the diagnostic system,
• road tests under various load conditions.

A procedure conducted in this manner ensures stable engine operation, correct cooperation with the automatic transmission, and preservation of the vehicle's security functions.

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 controllers, comfort modules, or powertrain management units, check the available parts in the Mercedes Electronic Control Modules and Controllers category.

To better understand how original electronic modules influence the character and handling of a premium car, it is worth reading the article on our blog: Audi and Pure Emotion. How Used Parts Help Maintain Brand DNA?, which illustrates the importance of factory components in preserving driving characteristics and comfort.