WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
OIL PUMP WITH STRAINER AND DRIVE SPECIFICATION
Oil pressure at idle speed with engine at operating temperature
min bar
1.0
Control pressure with engine at operating temperature