Opel COMBO Owner's Manual page 49

Loose or bulky clothing prevents the
belt from fitting snugly. Do not place
objects such as handbags or mobile
phones between the belt and your
body.
9 Warning
The belt must not rest against hard
or fragile objects in the pockets of
your clothing.
Height adjustment
1. Pull belt out slightly.
2. Shift the height adjuster upwards
or press button down to
disengage and push the height
adjuster downwards.
Seats, restraints
Adjust the height so that the belt lies
across the shoulder. It must not lie
across the throat or upper arm.
9 Warning
Do not adjust while driving.
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