That sounds like a bad IVM module, located in the DME panel box. Since you changed the DME, it might need to be synced with the CAS. You will need one of the BMW programs to do that. A high end diagnostic tool could also do this.
2005 645ci won’t start , crank or click (maybe electrical issue?) I need help
My e64 n62 Won’t start even after changing out the alternator and starter cause the car one day just decided to not turn on (p.s) I did clone and swap out the dme cause it was corroded and water damaged from rain . How could I make the engine start and get the car running ?
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