E46Fanatics - View Single Post - Volute Spring. What is it?
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Old 03-07-2013, 07:23 PM   #4
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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.
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