Yeah I've got the notch as well, I adjusted the passanger side wiper blade so it is a little further up the window that way it does'nt hit the bonnet when it is in motion. Oliver I suspect you may have to do the same with the drivers wiper but to stop it travelling further than the window itself,
From the 28th of January, you will be able to buy and fit a 156 wiper conversion. This will stop the 155 annoying wiper vibration in the rain and when the blades become worn, you just buy and fit the new blades rather than buying the whole arms again. I am told that it stops the bodywork damage too!
Well Jason it was certainly not done i order to save money on blade change! Those viperarms from a Volvo 440/460 really works...no annoying wiper vibration or bodywork damage ect. ect.
Press "search" and type "erratic Wiper motion" then you can read more.