Interior Fuse Box Location: 2003-2008 BMW Z4 - 2004 BMW Z4 Click to view0:27Interior Fuse Box Location: 2003-2008 BMW Z4 - 2004 BMW Z4 2 2 6 Cyl. Electrical components such as lights, heated seats and radios all have fuses in your 2004 BMW Z4 2 2 6 Cyl. This free video shows you how to replace a blown interior fuse on a 2004 BMW Z4 Author: Lake Ford Fuse box diagram BMW Z4 E85/E86 - fusesdiagram Fuse and relay location. Fuse box diagram. Identifying and legend fuse box BMW Z4 2003-2009.