Opel Vivaro Owner's Manual page 259

3. Turn retainers anti-clockwise for a
quarter turn.
1. Move the driver's seat backwards
as far as possible.
2. Align slots in the mat with the
retainers, as shown.
3. Turn retainers clockwise for a
quarter turn.
Removing
1. Move the driver's seat backwards
as far as possible.
2. Turn retainers a quarter turn
towards the opposite direction
than during installation.
3. Remove the mat.
Vehicle care 257