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Old 08-03-2010, 12:25 AM   #1
5th Gear Member
Join Date: Feb 2009
Location: Canada
Posts: 1,118
Q: What is this coil in the A pillar?

Just a quick question, we have our theorys but when removing the a pillars ( they have air bags ) we discovered a small white packet that was see through containg a copper coil. It was just stuck the the inside plastic, it was found on both sides. 2004 5er.

Any ideas or know what its for exactly?
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Old 08-03-2010, 11:53 AM   #2
Bullet Ride
Cars in Perpetual Repair
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Join Date: Nov 2007
Location: Guelph
Posts: 5,842
Was it connected to anything?
I'd like to say that it's for corrosion protection, but since the coil is copper (according to you), steel or aluminum would be the anode in that couple which is the opposite of what you'd want.
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