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      03-03-2013, 03:30 AM   #6
RnmEvo9
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Drives: 2007 335i
Join Date: Apr 2011
Location: Pembroke Pines, FL

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Quote:
Originally Posted by MteK View Post
BMW ones done by BMW techs

Still, what's the lifespan of a BMW Coil?!
You'll know when you get persistent misfires on a cylinder that doesn't move unless you move the coil. I have 61k miles on mine and just recently had to replace cylinder 1 coil as it was faulty and giving me persistent misfires. All spark plugs were replaced about 6k miles ago.