Mercedes Vito W639 OM646.982 150HP Engine Module ECU Kit A6461532491 Key Lock

Mercedes Vito W639 OM646.982 150HP Engine Module ECU Kit Key Lock is an advanced powertrain component designed for vehicles equipped with a diesel engine and a manual transmission. The kit ensures consistent control of the engine's operation, allowing for the restoration of proper engine electronics functionality after a failure or component replacement. Due to the completeness of the control system, it is a particularly beneficial solution for major repairs or engine swaps.

Specifications and technical data

• SKU: A6461532491-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6461532491
• Substitutable numbers: A6461532491, A 646 153 24 91, 0281012105, 0 281 012 105, A6395450108, A 639 545 01 08, A2034621130, A 203 462 11 30
• Fuel type: Diesel
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the ECU kit

The presented engine module kit with ignition lock and key is designed specifically for the Mercedes Vito W639 generation with the OM646.982 diesel engine and a manual transmission. It is responsible for precise control of engine operating parameters, such as fuel dosage, boost pressure, or injection corrections, by communicating with sensors and the vehicle's remaining electronics.

Combining the ECU module with a properly matched ignition lock and key ensures the integrity of the immobilizer system, which in practice facilitates installation and reduces the need for additional programming compared to replacing individual components.

Benefits of using a complete engine module

Using a complete control kit in a Mercedes Vito W639 offers a number of practical advantages, especially for vehicles used intensively in transport:

• Engine electronics consistency – the ECU module, ignition lock, and key come from a single system, which minimizes the risk of immobilizer conflicts.
• Diesel engine compatibility – the controller is prepared to handle the OM646.982 diesel unit, which promotes stable operation across the full load range.
• Manual transmission compatibility – the control logic accounts for the characteristics of the manual gearbox, resulting in predictable vehicle behavior.
• Ability to restore full functionality after electronic failure – especially in cases of damage resulting from flooding, power surges, or installation errors.

Application in service and repairs of the Mercedes Vito W639

This engine module kit is suitable for both professional service centers and workshops specializing in the Mercedes brand. It is particularly useful in situations where the existing controller has been severely damaged or when repairing the electronics is not cost-effective. The complete control system allows for reduced diagnostic and installation time, as well as limiting the number of potential points of incompatibility between individual system elements.

Due to the nature of the product in the Electronic control modules and controllers category, it is recommended to verify compatibility with the specific vehicle configuration, including the equipment version and software used in the given unit, prior to installation.

Selecting a used ECU module – technical support

When choosing a used ECU kit for a Mercedes Vito, it is worth paying attention to compatibility with the engine code, transmission type, and electrical system configuration. Matching by part numbers and interchangeable numbers can also be helpful, which facilitates the identification of the correct controller variant.

If you would like to deepen your knowledge regarding the selection and installation of used engine controllers and sensors, practical tips can be found in the Global Parts guide: Used automotive electronics – second-hand ECU modules and sensors. The article discusses, among other things, compatibility issues, selection by part numbers, and the most frequently asked questions related to installation.

Expanding the control system in a 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, auxiliary modules, or engine management systems, check out the available parts in the Mercedes electronic control modules and controllers category.