61 31 382 Replacing level switch for coolant
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 745i, 2005 BMW 745Li, 2004 BMW 745i, 2004 BMW 745Li, and 2003 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Danger of scalding!
Only perform this work after engine has cooled down.
Release screws (1).
Pull expansion tank (2) in direction of arrow out of grommet (3) underneath and place to one side.
Installation:
Make sure expansion tank (2) is correctly seated in grommet (3).
If necessary, replace grommet (3).
Disconnect plug connection (4).
NOTE:
For purposes of clarity, illustration shows expansion tank (2) removed.
IMPORTANT:
Do not damage connected water hoses.
Reposition expansion tank as far as possible until coolant level switch (2) forms the highest point. This will prevent coolant from escaping on opening.
If necessary, catch escaping coolant and feed back in later.
Reposition expansion tank as far as possible until coolant level switch (2) forms the highest point. This will prevent coolant from escaping on opening.
If necessary, catch escaping coolant and feed back in later.
Turn coolant level switch (1) in direction of arrow, pull downwards out of expansion tank (2) and remove.