Mercedes C207 E350 CDI OM642.836 231HP Engine Unit ECU Kit A6429001100 Key Lock

The ECU Engine Control Unit Kit with Ignition Switch and Key for Mercedes E-Class C207 E350 CDI is an advanced component from the Electronic Control Units and Controllers category, designed for the OM642.836 engine unit with 231 HP. The kit is configured for a diesel engine and an automatic transmission, which facilitates matching to a specific vehicle configuration and allows for efficient repair of the control system.

Specifications and technical data

• SKU: A6429001100-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6429001100
• Substitutable numbers: A6429001100, A 642 900 11 00, 0281016351, 0 281 016 351, A2075450108, A 207 545 01 08
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and Function of the ECU Kit

The offered kit includes the electronic engine control unit along with immobilizer components (ignition switch, key), allowing for a comprehensive replacement of the control system in a Mercedes E350 CDI C207 with an OM642.836 engine. Such a set minimizes the risk of software and security matching problems, as all components come from a single system and are factory-synchronized.

The ECU unit is responsible for precise management of the diesel engine's operation, including fuel delivery, boost control, emissions control, and cooperation with the automatic transmission. This enables the maintenance of stable operating parameters, correct throttle response, and proper functioning of safety and comfort systems.

Compatibility with Diesel Engine and Automatic Transmission

The presented kit has been prepared for cooperation with a diesel engine, meaning the injection maps, turbocharger operating strategies, and control logic have been adapted to the specifics of the CDI engine. Integration with the automatic transmission allows for correct communication between the engine controller and the gearbox module, which translates into smooth gear changes, appropriate gear selection under load, and stable operation in comfort and dynamic modes.

For the user, this means the possibility of restoring proper drivetrain cooperation after a failure of the original control unit, without the need for deep modifications to the electrical system or lengthy programming from scratch.

Advantages of Using a Complete ECU Kit with Ignition Switch and Key

Using a complete control unit kit with immobilizer components is particularly beneficial in cases of serious electronic damage or coding problems. In one package, you receive:

• a cohesive set of electronically linked components, factory-matched,
• an easier installation and adaptation procedure in the vehicle,
• reduced risk of software conflicts and immobilizer errors,
• a solution tailored to the specific fuel type and automatic transmission.

Thanks to this, the kit can be an effective way to restore the functionality of the engine control system in Mercedes E-Class C207 E350 CDI vehicles where the original module has been damaged.

Professional Selection and Used Mercedes Electronics

When selecting such a kit, it is crucial to pay attention to compatibility with the specific engine version and vehicle equipment configuration. Manufacturer markings, OEM part numbers, and interchangeable numbers are helpful here, allowing for precise verification of compatibility with a given car. If in doubt, it is worth using the vehicle's VIN number and service documentation.

If you want to better understand how to safely choose used control modules and other automotive electronics, how to check hardware and software compatibility, and what to look for during installation, read the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?

Expanding the Control System in Mercedes

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, comfort modules, or powertrain management systems, check the available parts in the Mercedes Electronic Control Units and Controllers category.