New to us 2004 XC70. Bought August 2013, ~ 94500 miles. I have been working through changing all fluids, timing belt, brake hoses, engine mounts, tires, transmission drain fill x2. Car is for son to go to school 4+ hours away. Returning home for the Christmas holiday after 2+ hours of driving, the car shut off and immediatly restarted. No further incidents. Battery age (Volvo brand) unknown but started at 5*F here in south east Pa. without problem. Replaced battery with new group H6 AGM 760 CCA battery. Cables were clean and tight on old battery. Well, he went for a 3 hour ride last night and again the car shut off/restarted, 4 times. Had a left rear door agar message, lights flash, transmission bangs, SRS message. Cannot trust car for him to return to school. Last nights first failure occured on Pa Turnpike using cruse control. Subsequent failures with cruse off. I have searched for solutions, and appears ECM and/or fan may be at fault. Will be calling garage for appointment. Any advice where ECM, CEM and fan is located? I can check if fan operates and clean contacts but don't know where to look. Sorry no DICE VIDA to read codes.
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