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-   -   Volute Spring. What is it? (http://forum.e46fanatics.com/showthread.php?t=974966)

jM2.me 03-07-2013 04:19 PM

Volute Spring. What is it?
Doing some reasearch on e46 wiring and found something called "Volute Spring" on WDS its part I01002 (E46 WDS here)
As far as I can tell it is connected to K Bus, DDE/DME, I-Bus, multiple restrain system, and finally multi-function steering wheel.

So does anyone know what it is, or what it might be?

scottjoh 03-07-2013 05:57 PM

It's a flex cable connecting parts on the moving part of the steering wheel with the rest of the car (airbag, cruise buttons, radio/phone controls and horn.).

-fixture- 03-07-2013 07:18 PM


Hope this is the correct one.

cyberkaa 03-07-2013 07:23 PM

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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