bbspoolside

hi I need to replace the motor ecu on my 07 r350 as mine is supposedly not repairable if I go the used option I know I will need the eis with key but what about the other modules ie intelligent shift, trans module, door remote sensors any thing else? thanks in advance

bbspoolside

So I replaced my ecu with a second hand ecu and had it coded to the car by a guy local to me and now the car is starting ever time no more non starting when hot.