Quote:
Originally Posted by 0_to_60
i read it before, but i thought it didnt apply to the m3s. Any links? thanks
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Take a look here..
http://www.m3post.com/forums/showthread.php?t=1373697
If you want to anyway, pop in your VIN and you can see what recalls you have open on your car. HVAC blower is probably in there for you now which, I'm sure, puts a lot of load/stress on your entire electrical system
https://www.bmwusa.com/safety-recalls.html
If the car completely powers up (no other issues) with using your jumper battery, I would not suspect it being a bad cable.