Have had my 520D F11 2011 for nearly a year and never had any issues before. Tow months ago I replaced blades for original Bosh so its rather not blades making that noise..
I attach two videos one showing weird noise, second shows weid behaviour when switching ignition off. They are still parked OK but makes that weird move for a second down and up again.

I have checked front fuse box, Fuse #8,51,55 looks OK. Relay socket is empty and always was. Is that possible?

noise:


weird move at ignition switch off


any ideas how to sort it out