61 31 315 Replacing level switch for brake fluid
WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, and 2001 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
Remove cover. Refer to 51 71 080 REMOVING AND INSTALLING/REPLACING HEATER BULKHEAD .
Disconnect plug connection (1).
Release screw ring and remove level switch for brake fluid (2).