Ditto overboost...without the heating "filament" running through the steering wheel...how would it "heat up"?

The info below gives the basic design...regardless of it being a 4 spoke or 3 spoke...the filament will be required for the wheel to heat up when all the other components are present, as well:

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• 2015 f06 650ix GC (Moonstone exterior/Cohiba brown Merino Leather interior)
• 2014 f15 X5 50i (Space Gray exterior/Mocha Nappa Leather interior)