BMW X3 2013 Owner's Manual page 145

Storage compartments Controls
Hook on the bottom of the cargo floor panel:
for easier loading, the raised cargo floor panel
can be secured on the edge of the roof with
the hook.
Cargo net, FlexNet
To secure the cargo, refer to page 148, the
flexible cargo net can also be used.
Folding box
A folding box is located under the cargo area
floor.
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