BMW 7-Series E38 (1994 to 2001) Fuse Box Diagrams Fuse box location and amperage list. There are 2 fuse boxes on the BMW serie 7 E38: 1 – Fuse Box in the engine compartment. To access the engine compartment fuse box, open the hood and look on the right hand side near the windscreen. You’ll see a cover for the fuse box. Fuse diagram for 1998 bmw 740i - Fixya Jan 08, 2012SOURCE: power steering belt replacement for 1998 bmw 740i your power steering pump should have a adjusting pinion nut loosen the pinion nut to loosen pump so you can replace belt you have a automatic belt tensionener you rotate tensioner clockwise to replace or remove belt.