MB Coupe

My seatbelt presenters are not working very well. They started to be erratic when the battery was going bad (sunroof, etc too). After I changed battery everything is back to normal except the seat belt presenters.

Driver side is not working at all and on the passenger side it goes out 1 inch every time the door is opened without going back until it is fully extended and then stays there.

Anyone knows if there is a way to reset the seatbelt presenters.

Thanks, Johan