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ecu ews

  1. E39 M5 and E52 Z8 Discussion
    Wanted to ask if anyone here had run into this or has seen this happen in the past. My car is in the shop to diag. an airbag warning light. Techs wiped the cars software clean and the rewrite fails sine the ECU and EWS can't swap the rolling code it needs to complete. I am a few days away...