Taking off the seat beltsTaking off the seat belts  - How to wear seat belts properly - Seat belts - Safety - Audi A5 Owner's Manual - Audi A5

The red button releases the belt from the buckle.

The latch plate of the belt springs out of the buckle
The latch plate of the belt springs out of the buckle

Ц Press the red button in the seat belt buckle,. The latch plate will spring out of the buckle.

Ц Guide the belt back by hand so that it is taken up by the retractor.