Used item : BMW Engine Control Module Computer Unit ECU ECM DME PCM 7594485, 

PREOWNED /USED OEM PART - good working condition, minor visible physical wear - does not impede on function (see images) 

Interchange: *Match P/Ns (pictured) or will not Fit/work & may damage your motor, PROGRAMMING NEEDED*

***WILL ONLY REPLACE SAME PART ONLY, THIS IS NOT AN UPGRADE OR A RETROFIT PART, PLEASE MATCH YOUR PART NUMBERS TO ENSURE FIT ***

 All electronic items are marked with UV ink and or engraved