BMW E39 523i M52 M52b25 ECU DME ENGINE CONTROL UNIT MODULE 5WK9 018 MS41 1744598
For BMW M52B25 engine only ! BMW E39 5 series 523i. Plug & Play. This can be used to start a car with missing car keys. It does not require any coding to the car modules or keys - plug it in and you are ready to go.