I've done it last week on my e180 2022, to fit kiox... If you plan to remove the motor, you will need a tool to remove the chainring. And also a torque wrench to do it upto 40nm anticlockwise, not every wrench do this (mine didn't). Otherwise simple job, just make sure you don't trap the cables and hoses... if you plan to check the connectors only, they all are under plastic cover on nondrive side. 2 small bolts to remove it.