Thread: Hfs-4 wiring for Audi B8 s4 3.0 (2009-2013)?
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Old 02-01-2014, 07:13 PM
Richard L Richard L is offline
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Join Date: Oct 2003
Location: England
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Default Re: Hfs-4 wiring for Audi B8 s4 3.0 (2009-2013)?
No, it doesn't need to come on at all. If it does, it has reached its ceiling.

Very nice looking work!
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