Mercedes W176 A200CDI OM651.901 136HP Engine Module ECU Kit A6519007600 Key Lock

Mercedes W176 A200CDI 651.901 136HP Engine Module ECU Kit A6519007600 Automatic is a complete, used engine control unit set designed for the diesel version of the A-Class with an automatic transmission. It offers factory-set logic for diesel engine operation, ensuring consistency with the vehicle's original electrical architecture. By maintaining specific parameters for this model configuration, the kit allows for professional control system repair without altering the car's construction.

Specifications and technical data

• SKU: A6519007600-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6519007600
• Substitutable numbers: A6519007600, A 651 900 76 00, A6519010601, A 651 901 06 01, A2469059900, A 246 905 99 00
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

System Purpose and Configuration

The presented ECU kit is dedicated to the compact Mercedes A-Class model in the A200CDI version, equipped with a diesel engine and an automatic transmission. This means that the control maps, operating algorithms, and bus communication are adapted to work with the automatic gearbox, as well as the safety and comfort systems characteristic of this configuration.

As a component from the Electronic Control Modules and Controllers group, the kit is responsible for processing signals from sensors, controlling fuel injection, air dosing, and interacting with other onboard modules. Proper matching to the specific engine and drivetrain version minimizes the risk of communication errors and software compatibility issues.

Diesel Engine Operation Characteristics

The module is designed to operate an engine powered by Diesel fuel, which translates into appropriately prepared control strategies for injection, boost pressure, and exhaust emission control. The electronics take into account the specifics of the diesel operating cycle, including precise fuel dosing across various load and temperature ranges.

This enables stable engine operation, correct throttle response, and proper interaction with onboard systems responsible for diagnostics and safety. Using an original control unit in the configuration intended for a given model reduces the need for installation or software modifications.

Benefits of Using a Used ECU Kit

Choosing a used engine control unit for a Mercedes allows for technically correct repair of the control system while maintaining reasonable service costs. The kit comes from a vehicle where it was previously used, meaning its operating parameters have been verified in real-world conditions. This is a practical solution in situations where the original module has suffered electronic or software damage.

When combined with proper adaptation and configuration in the vehicle, such a control unit can restore full drivetrain functionality, preserving original driving characteristics. For workshops and users, this means the possibility of professional repair without resorting to aftermarket replacements of uncertain compatibility.

Selection, Compatibility, and Installation Aspects

To ensure proper interaction with the electrical system and other modules in the car, matching the ECU kit based on manufacturer markings and vehicle configuration is crucial. In practice, this means verifying compatibility with the specific engine version, gearbox type, and vehicle equipment. Proper selection minimizes the risk of diagnostic errors, starting problems, or incorrect operation of the automatic transmission.

During the installation process, it is important to follow the manufacturer's procedures, including potential coding, immobilizer adaptation, and synchronization with other control units. A professional approach to installation allows for the full utilization of the kit's potential and avoids recurring faults related to in-vehicle network communication.

Expert Support and Related Products

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 control units, engine management modules, or drivetrain control systems, check the available parts in the Mercedes Electronic Control Modules and Controllers category.

When choosing a used control unit, it is advisable to use practical tips on selection based on manufacturer markings, hardware and software compatibility, and installation procedures. A detailed discussion of these issues can be found in the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?, which explains step-by-step how to safely and consciously use used electronics in modern vehicles.