VB-3502 is a new air suspension solenoid valve block from Arnott for the 2011-2017 BMW 5 Series GT (F07) and the 2009-2015 7 Series (F01/02/04) incl. Hybrids. The valve block is a direct OE replacement. An air suspension solenoid valve block distributes air from the compressor to the air springs and air struts. Over time, valve block O-rings can dry rot and leak air causing the compressor to overwork or allow moisture to degrade the electrical solenoids components._x000D_