I found on my 1M that the adhesive that holds the plastic sheeting onto the door behind the door card had failed in places. I heated up the adhesive in those areas to pull back the sheet a bit more and then applied a silicone adhesive in those areas, then stuck down the sheet again. It kept the water from leaking out behind the door card after that and directed it down to the door drains. Obviously also check your door drains aren’t blocked.