Checking engine oil pressure with DIS Tester
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.
Attach special tool 13 6 054 with sealing ring (1) and special tool 13 6 051 and connect to DIS Tester.