Interior Fuse Box Location: 1999-2006 BMW 330Ci - 2003 BMW Click to view0:17The video above shows how to replace blown fuses in the interior fuse box of your 2003 BMW 330Ci in addition to the fuse panel diagram location. Electrical components such as your map light, radio, heated seats, high beams, power windows all have fuses and if they suddenly stop working, chances are you have a fuse Author: Intl. Autos Fuse box diagram and location on 2003 BMW 330ci - Fixya Sep 11, 2013fuse box diagram and location on 2003 BMW 330ci - BMW Cars & Trucks question. Search Fixya. Browse Categories Answer Questions . BMW Car and Truck Fuses & RelaysThe fuse box is located under the engine hood on the left side, near the upper strut housing or near the battery.