I ahve a 2006 Signum, and in Feb this year I added on some Retro Fit Vx Flat Blade Wipers.
They were great until about a month or so ago when they started leaving fine smear lines across the glass on the drivers side.
I have tried cleaning them with undiluted screen wash but there is no change.
Any ideas how to salvage them? Or is it back t teh old style wiper blades?