BMW 2011 550i xDrive Owner's Manual page 275

Checking
1. Let the engine cool.
2. Turn the cap of the coolant reservoir slightly
counterclockwise to allow any excess pres‐
sure to dissipate, and then open it.
3. The coolant level is correct if it lies between
the minimum and maximum marks in the
filler neck.
4. If the coolant is low, slowly add coolant up to
the specified level; do not overfill.
5. Turn the cap until there is an audible click.
6. Have the cause of the coolant loss elimi‐
nated as soon as possible.
Disposal
Comply with the relevant environmental
protection regulations when disposing
of coolant and coolant additives.
Online Edition for Part no. 01 40 2 607 855 - 09 11 490
Engine oil Mobility
275