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Old 03-07-2013, 07:23 PM   #4
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Join Date: Jul 2008
Location: Sunnyvale, CA <-- Ithaca, NY <-- dirty jerz (201) Useful Posts: 25
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My Ride: E46 332i,M3;E30 325i
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Correct. It's also known as a clock spring or slip ring.
It allows components that rotate about a central axis to maintain electrical contact with a fixed element without twisting a wiring harness.

On an E46, the volute spring is the slip ring that allows the steering wheel to connect to the harness.
(klx photo studio)

M3 drive train conversion (S54 Swap, LSD, 6MT, suspension linkage) | UUC Stg 2 Organic Clutch | OEM M-Tech II Kit
KW V2 | BBS GT4 RE | Falken FK452 | Alcon 6-pot 365mm BBK | M3 steering wheel | Powerflex bushings

Originally Posted by koven View Post
i'd rather be gapless with no bulge
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