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SA just called and said I needed a secondary air pump replaced. I know it's OT for this subforum, but does anyone know what that part does? And what would cause it to fail?
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Just a girl and her 863 ponies...
2013 Santorini M3, 2016 328i Alpine White Wagon (Lab hauler), 199x wrapped E36 M3 (because racecar)
///M-Flight
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