Section 62 (ANTI-LOCK BRAKES/TRACTION CONTROL SYSTEM - 745i & 745Li): Servicing
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 BMW 745i, 2004 BMW 745Li, 2003 BMW 745i, 2003 BMW 745Li, and 2002 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.
Use brake fluid called for in owner's manual. Brake fluid should be replaced every 2 years. Over time, brake fluid will retain moisture from air and could cause brake fluid boiling point to drop from 464°F (240°C) to 320°F (160°C).