New GLS450 - wipers skipping!
ironically if they are lubricated there is no noise or chatter. (Try using wiper fluid and see if goes away) problem is rain doesn’t have same viscosity/lubrication.
dealer keeps checking it with wiper fluid and states all is well. I have yet to find aftermarket blades for the car.




I coat all other windows with it since works great and lasts a looong time, but I learned the wrong way not to use it on the windshield of MB cars since it makes the wipers skip terribly.
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Will give windshield clean another go.
thanks
https://www.boschautoparts.com/en/au...tId=3397007854
i got them today and they don’t fit. According to their website they fit the new GLS but looks like they still use x166. Don’t fall for the same trap of hope. As a side note, these wipers are much higher quality….wish they fit.
Last edited by Bayern; Jul 16, 2021 at 12:51 PM.




Found a fix for this that worked flawlessly for me, prior I was experiencing extreme shuttering when in use.
New wipers, used Turtle Wax bug and tar remover.
1 coat on the windshield, and 1 wipe across the bottom of the wiper blades, with light solution on the towel. 100% fixed for me.
Found a fix for this that worked flawlessly for me, prior I was experiencing extreme shuttering when in use.
New wipers, used Turtle Wax bug and tar remover.
1 coat on the windshield, and 1 wipe across the bottom of the wiper blades, with light solution on the towel. 100% fixed for me.
BOSCH 3397001583 Twin Spoiler Original Equipment Replacement Wiper Blade - 21"/21" (Set of 2) https://a.co/d/gnI0YHN
https://mbworld.org/forums/gls-class...ml#post8879446
Good luck!
Step 1: Clean window with window cleaner. Step 2: Clean window with rubbing alcohol. Step 3: Apply “NuFinish, the once a year polish”, and then wipe off. Issue was resolved.
I would not have believed it had I not tried it myself. It worked so well that I ended up taking back the Bosch blades. See the video I found on YouTube. Credit to Smok’n Jay’s garage.





