You don't state what year, but for the E39 (1997 - 2003 MY) there is one in the trunk on the left side in the battery compartment and another in the glovebox.
in the glove box
The fuses on a BMW 3 series can be changed by using a special fuse removal tool. It resembles a pair of rigid tongs with a lip at the end to grip the fuses during installation and removal.
The 2003 BMW 5-Series has a 5-speed manual.
The 2001 BMW 5-Series has a 5-speed manual.
The 2002 BMW 5-Series has a 5-speed manual.
under the hood - drivers side near the firewall
The target price for a new BMW 5 Series is $46,917 and MSRP is $48,725. The best place to purchase a new BMW 5 series is at an official BMW dealership.
The 2001 BMW 5-Series has 24 valves.
The 2007 BMW 5-Series has 24 valves.
The 2004 BMW 5-Series has 24 valves.
The 2012 BMW 5-Series has 16 valves.
The 2009 BMW 5-Series has 24 valves.