Mercedes Vito W447 OM654.920 114 CDI 136HP Engine ECU Kit A6549008000 Key Lock

Mercedes Vito W447 OM654.920 114 CDI 136HP Engine ECU Kit Key Lock is a professional solution for vehicles equipped with a diesel engine and an automatic transmission. This set belongs to the Electronic control modules and ECUs category, meaning it is designed for precise management of the powertrain and related systems. Using this set allows for a technically correct replacement of a faulty ECU along with the immobilizer components, reducing the risk of vehicle starting issues.

Specifications and technical data

• SKU: A6549008000-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6549008000
• Substitutable numbers: A6549008000, A 654 900 80 00, 0281036843, 0 281 036 843, A4479009609, A 447 900 96 09, A4479004714, A 447 900 47 14
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Application and intended use

The presented ECU kit is dedicated to the Mercedes Vito W447 generation model with the OM654.920 114 CDI 136HP engine, paired with an automatic transmission. This type of set is particularly useful in situations where the factory engine control unit has failed or there are issues with the synchronization of the immobilizer and the key.

Combining the engine control unit with a matched lock and key facilitates the installation process and subsequent configuration, as the key security system components come from a single donor vehicle. For workshops and service centers specializing in Mercedes electronics, this means reduced diagnostic time and a lower risk of software incompatibility.

Technical characteristics of the ECU kit

The set belongs to the Electronic control modules and ECUs category, highlighting its role as the central element managing the diesel engine's operation. The ECU communicates with the injection system, turbocharging system, exhaust gas treatment system, and automatic transmission, ensuring cohesive control of the entire powertrain.

Adaptation for diesel fuel and integration with an automatic transmission make this set suitable only for specific Vito W447 powertrain configurations. This ensures compatibility of injection maps, gear-shifting strategies, and the logic of driver assistance systems.

Benefits of using a pre-owned ECU kit with key

Choosing a pre-owned engine control unit set with a matched lock and key is a solution that allows for cost-effective repairs while maintaining high functionality. This type of set:

• simplifies the vehicle starting process after ECU replacement, as the key, lock, and control unit are already linked,
• reduces the risk of immobilizer issues and the need for deep software intervention,
• allows for efficient restoration of the powertrain's performance after an engine electronics failure.

For fleet users and workshops servicing Mercedes commercial vehicles, this is a practical solution that minimizes vehicle downtime and facilitates repair planning.

Selection, compatibility, and installation aspects

To ensure the proper operation of the set, it is crucial to match it to the specific engine version, fuel type, and transmission type. In practice, this means verifying compatibility with the OM654.920 114 CDI unit and the automatic transmission configuration. Workshops specializing in the Mercedes brand typically use dedicated diagnostic tools and technical documentation for this purpose.

During installation, it is recommended to:

• observe safety procedures when working with the vehicle's electrical system,
• perform adaptation and testing using an appropriate diagnostic tester,
• verify the correct communication between the ECU and other modules in the vehicle.

This approach minimizes the risk of CAN network communication errors and engine starting problems after replacement.

Used electronics – what to look for

When choosing a used engine control unit, it is worth paying attention to the origin of the component, compatibility with the vehicle configuration, and the condition of the connectors and housing. A used ECU kit with a key and lock can be a rational choice if it is correctly selected and comes from a reliable source. Additionally, practical tips on buying second-hand electronics may be helpful – you can find them in the article The second life of electronics – when is it worth choosing used engine ECUs, comfort modules, and parking sensors?.

If you want to verify component compatibility even more accurately using OEM numbers and avoid mistakes when ordering online, the guide Risk-free online parts shopping – 5 proven ways to verify component compatibility using OEM numbers and paint codes, which describes, among other things, practices used when selecting parts for Mercedes vehicles, will be useful.

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 controllers, powertrain management modules, or electronic auxiliary systems, check out the available parts in the Mercedes Electronic control modules and ECUs category.