David, yes I have cleaned it well, ie soap and water and windex. However, I suspect it might still be due to ingrained dirt, like wax or something else that is still there, and am interested in recommendations for a product I could use to be sure that I have stripped dirt off back to bare glass.

 

headshok, I'm keen to know more, what do you mean by "linkages"?... the levers and pivots that hold the blade itself?

 

its not the linkages - i have the same problem but its on the wipe back - i got it faced over the weekend. apparently the blade was turned the wrong way creating "ecess fricion"

 

gvm - this is not caused by dirt etc on your windscreen - your wiper arms are slightly bent causing the blades to 'hop' across the windscreen instead of 'wiping' it - i had a similar problem with my A4 where even when it was raining heavily the wipers were still 'hopping' across the windscreen this was solved by twisting the wiper arms a little

 

I bought the same ones, man they're good. No noise, double rubber really hits the spot.

 

I have the same problem right at the end of the motion really weird but iam going to put the rainX on my wiper car and where do you get the washer fluid with rainX thats a great idea.

 

I found the noise is with the passenger side blade only. The noise is worse on a wet screen than a dry screen!. The driver-side blade (and carriage that holds it) is dead straight. The passenger side carriage is curved ... bent up towards the roof of the car at both ends. Before I start bending the wiper, can someone confirm that the passenger side carriage should be dead straight just like the driver side please? TIA .... Greg