Procedure for Removing the MTU ECU4 12-16V 4000 Engine

This section outlines the steps for removing the MTU ECU4 12-16V 4000 engine.

Components Involved

1. Regulator, ECU 4
2. Engine cable connections

Steps to Remove the MTU ECU4 12-16V 4000 Engine

1. Locate and Identify Components:
   • Identify the regulator and ECU 4 on the 4000 engine.
2. Loosen and Remove Plugs:
   • Loosen all bayonet plugs with union nuts.
   • Use connector pliers to easily loosen the union nuts.
   • Remove all plugs from ECU 4.
3. Close Open Connections:
   • Close all open connection sockets of ECU 4 and all plugs of engine cables with dust caps.
4. Disconnect Earth Cable:
   • Disconnect the earth cable from ECU 4.
5. Remove Fixing Screws:
   • Loosen the four fixing screws (M6 x 60) of the ECU 4.
   • Carefully remove the ECU 4.
   • Note: The ECU 4 weighs approximately 7 kg.
6. Transfer Data Modules:
   • Inside the ECU 4, there are two data modules (MEMs) containing engine and factory-specific software.
   • When changing the ECU 4, these data modules must be transferred to the new ECU 4.
   • Follow the instructions in the electronic device’s manual for transferring the data modules.

Additional Resources

• MTU Engine Diagnostic USB to CAN Adapter: Includes cable.

By following these steps, you can successfully remove the MTU ECU4 12-16V 4000 engine and transfer necessary data modules to the new ECU.