What should be noted when using a seatbelt?

Your answer is fully correct. According to German traffic rules, the seatbelt should not be twisted because twists can reduce its effectiveness and cause injury in an accident. Once it is fastened, the seatbelt must be pulled tight to properly secure the occupant and minimize movement during a collision. Additionally, any damaged seatbelt must be replaced, as it may not provide the necessary protection. Following all these points ensures maximum safety when using a seatbelt.