Hi, I have also had a near miss on our Plus Six with the wiper arm coming loose, I also had a wiper blade fall off. Also lucky that in both cases it was caught it in time with no damage. Our wiper blades now replaced with the after market version that work.
Watch out for the hex Allan head screws that hold the wiper arms onto the spindle, the factory screws are made from a stainless that easily deforms and you need to make sure that the Allan key is a good tight fit in the screw when you tighten them, or they will round out. Also of note you can not purchase the screws from the factory without buying the complete arm, as they only come as a pair. This was confirmed to me by both the main delaer and the factory!. ( nuts.. ) Once the warranty period has ended I intend to replace mine with non Morgan stainless screws
Hi Dave, I'm new here. Can you share where you got the upgraded wipers from? Thanks Neil