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ECU Difference

596 views 3 replies 3 participants last post by  coolrider  
#1 ·
Hi... I may need a replacement ecu... ive found 1 online from the same year but the part numbers are different... mines
BMSK 7 687 762 , the one online is BMS 7 699 069 -01. It comes with the ignition switch and key etc and the other ecu for the electrics. Are they interchangeable?
 
#4 · (Edited)
If it is a K25, I think you need the Engine Control Unit, Body Electrical Control Unit, and Ignition Key. After installation, you need BMW dealer to refresh the connection as the other "control unit" such as ABS and Speedometer also need to "shake hand". The mileage data in the speedometer and ECU should also be synchronized. The higher mileage data from either one will be chosen by the process.