How do i fix Rear seat belt not working on Mercedes?

To fix a rear seat belt not working on your Mercedes, first check for any visible obstructions or twists in the belt itself. Ensure that the buckle and latch are clean and functioning properly. If the seat belt still doesn't retract or latch, it may be a sign of a faulty retractor or a broken component, requiring replacement. In this case, it's best to consult your vehicle's manual or take it to a certified mechanic for a thorough inspection and repair.