How do I stop the wipers juddering on my car?

I have cleaned the windscreen of my Yaris and replaced the blades with Bosch soft blades, but on the driver's side I still get a raking noise as the wipers seem to judder across the screen. Any ideas?
This reads like the wiper arms are stiff, which is causing the wiper blade to judder and bounce across the screen. You will need to adjust the wiper arm. Your car's manual should show you how.
Answered by Dan Powell on

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