I have had my golf for just under 4 months and the car has been back 5 times for the wipers. The last time they had the car for a week and the wipers no better. Mine scrape judder and squeak on the drivers side. They have done the 'known recommended' fixes from VW and replaced the blades numerous times. It's going in again next week and they are going to completely replace the whole mechanism. Has anyone else had the juddering issue? Mine is a 2014 VW Golf Mark 7 Highline model. Also every Loan car they have given me does the same thing, all brand new golfs. I dread driving it in the rain now.
Have you tried the Bosch alternatives as linked earlier in this thread?
I picked up a set for about $60-70NZ and not had a issue since. I know we really shouldn't have to but to remove the safety hazard and get on with enjoying the car made it highly worth it.
Replacing the entire mechanism won't cure your problem, not unless during the process they give you the re-designed blades.
You can unclip the blades to check the manufacture date, one set I had the VW dealer replace with the "re-designed" blades, they failed to work and had a date of 11/12 - yep, I was lied to as they fitted the same part no.