Mercedes-Benz 2008 M-Class Operator's Manual page 275

Controls in detail
Loading
Pulling the cargo net tight
Belt hook attached behind the front seats
1 Belt hook
2 Cargo tie-down ring
3 Tightening belt
Hook belt hook 1 into cargo tie-down
ring 2 in direction of arrow.
Pull tightening belt 3 by the loose end
in direction of arrow until the cargo net
is pulled tight.
After driving a short distance, make
sure the cargo net is still tight and, if
necessary, pull it tight again.
274
Loosening the cargo net
Belt hook attached behind the front seats
1 Buckle
2 Belt hook
3 Cargo tie-down ring
Loosen the tightening belt by pulling
buckle 1 upward in direction of arrow.
Remove belt hook 2 from cargo
tie-down ring 3.
Removing and storing the cargo net
Take cargo net bar 2 out of holder 1,
see "Installing the cargo net"
( page 273).
Press the red button on the upper and
lower cargo net bar.
Fold the cargo net.
Roll up the cargo net.
Close the hook and loop fasteners on
the cargo net package.