Shop › BMW E30 Trunk Weight Balance Dummy Battery Mount Plate Bolts. Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 BMW E30 Trunk Weight Balance Dummy Battery Mount Plate Bolts. $95.00 BMW E30 Trunk Weight Balance Dummy Battery Mount Plate Bolts.Removed from 1987 325i convertible. Add To Cart Added! BMW E30 Trunk Weight Balance Dummy Battery Mount Plate Bolts.Removed from 1987 325i convertible.