Wiper noise

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I have a noise at the start of the sweep of my wipers. Car is 3 months old. These are new blades. I replaced the wipers the car came with as they chattered badly . Are these wipers the issue

 
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The first step would be to thoroughly clean the windshield with the following mix:
- 60%
- 20% alcohol (70% alcohol is fine)
- 20% distilled white vinegar.

Tape off the edges of the windshield. Take “0000” steel wool and clean the residue from the windshield by pressing firmly in a circular motion.
 
I have a noise at the start of the sweep of my wipers. Car is 3 months old. These are new blades. I replaced the wipers the car came with as they chattered badly . Are these wipers the issue


Go get some glass science glass scrub or the glass scrub from Napa auto parts. This makes a big difference as it removes grime from the windshield. Second take hot water, dish detergent and some baking soda and clean the wiper blades. This should help, however I've seen some blades just chatter.
 
What I have found through the years, is, when I was younger back in the 80s I thought a lot of my cars had little ramps that pulled the windshield wipers up in the air so there was no load on the wiper blades. Nowadays, it seems like all the cars I’ve owned don’t have that anymore and they sit there with spring load on the whole lad assembly. That load pushes the wipers so they bend 60 to 75 degrees. Every cycle movement they have to rotate over instead of staying somewhat stiff and only getting movement by the little 6 mm of the wiper blade themselves. Now you have the whole blade assembly rotating, and that clunking is just the whole blade assembly rotating 120 to 150 degrees. It’s like they did not want to design the dual cycle of coming off the ramps going on the windshield and then wiping without hitting the ramps and then when you turn off the wiper it cycles to the second cycle and place themselves on the ramps to load the wiper blades I have no clue if you guys with BMW‘s Porsche‘s Cadillac and Lexus have this but all the commoner cars I’ve driven, I always have to live with bad cheap wiper designs
 
What model car and wiper blades are you discussing? If they are beam blades, try the Bosch Icons. Or Valeo blades if they are traditional open frame wipers. I would not use steel wool on a windshield of a new car for risk of scratching the glass. You would be safer using BonAmi powder or Bar Keeper's Friend cleanser.
 
What model car and wiper blades are you discussing? If they are beam blades, try the Bosch Icons. Or Valeo blades if they are traditional open frame wipers. I would not use steel wool on a windshield of a new car for risk of scratching the glass. You would be safer using BonAmi powder or Bar Keeper's Friend cleanser.
Car is a 2025 VW Atlas purchased July 2025. The wipers that were on the car were chattering like crazy. The wipers are Anco I also have a set of Tricos that I may try. I did clean the windshield with CMX surface prep but maybe didn't go to base of windshield. I will order Bosch Icons if that fails
 
Are you using RainX washer fluid by chance? That has made every vehicle I've owned wipers chatter.

If not, consider going back to OEM blades. I've used Trico's on VW's and they get pretty bad after a couple months. Heck, there's some Trico's on my Subaru and they're garbage after a couple months.

I haven't had very good results from Bosch either.
 
Car is a 2025 VW Atlas purchased July 2025. The wipers that were on the car were chattering like crazy. The wipers are Anco I also have a set of Tricos that I may try. I did clean the windshield with CMX surface prep but maybe didn't go to base of windshield. I will order Bosch Icons if that fails
Since they are beam style blades, you might consider trying the PEAK Optix Plus blades currently on sale at Sam's Club. They are repackaged Valeo blades in a PEAK box.
 
I would start off by decontaminating the windshield first. Clay it and clean the windshield wipers. If it still does it, I would personally replace them.
 
Car is a 2025 VW Atlas purchased July 2025. The wipers that were on the car were chattering like crazy. The wipers are Anco I also have a set of Tricos that I may try. I did clean the windshield with CMX surface prep but maybe didn't go to base of windshield. I will order Bosch Icons if that fails
Go get some glass scrub and scrub the windshield.
 
Sounds like the wiper blade is flipping over at the start of the wipe, or like k2k2 mentioned. Strange because I don't hear the flip at the reversal of blade direction. Does it make this sound when the wipers are on constantly slow and fast (not intermittent)?
 
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