juddering windscreen wipers

Discussion in 'Parts, Maintenance & Servicing' started by stevegbr, Sep 23, 2018.

  1. stevegbr

    stevegbr New Member

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    not long had the car, it was raining yesterday so had to use the wipers, after a couple of passes it juddered quite badly, then it was okay for a couple of wipes then started scraping again, the blades look ok, but i thought i would ask you guys before i purchase new blades, will this solve it or is it something else. thanks
     
  2. PaulG

    PaulG Hardcore MB Enthusiast

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    As an experiment, I looked up the wiper blade fitment on ebay and ordered the results with "cheapest including postage" at the top. For a laugh, I picked the cheapest, £5 including postage, for TWO! and fitted them.

    This was more than 3 years ago and they are still streak and judder-free.

    Sometimes, there really are bargains out there.
     
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  3. whitenemesis

    whitenemesis MB Club Veteran

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    Could be the 'attack' angle is wrong causing the blades to skip.
    First thing to try is to make sure the screen is really, really clean. If that doesn't help swap out the blades for new ones. If still juddering get the wiper arms adjusted to change the attack angle. Dealer have a tool to do this methodically, or you could try (at your own risk) twisting them gently to see if you can eliminate the judder.
    The dealer had to do mine on my S203, nothing else worked. Once adjusted, perfect!
     
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  4. whitenemesis

    whitenemesis MB Club Veteran

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    Wow! that's impressive. I change mine every 12 months at the very most. Usually springtime..
     
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  5. Smart320

    Smart320 Hardcore MB Enthusiast

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    Perhaps PaulG failed to mention he never takes the car out when it is raining in order save on wear and tear of his w/ blades?
     
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  6. CowleyStJames

    CowleyStJames Hardcore MB Enthusiast

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    I tried cleaning screen with various screen cleaners and even washing up liquid, still juddered. New wipers, still juddered. Altered angle of blades, still juddered.
    Then tried claying the screen, perfect.
    Obviously something was ingrained enough on the screen to cause the problem which claying removed.
     
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  7. OP
    OP
    stevegbr

    stevegbr New Member

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    never heard of that before, will look in to that.
     
  8. baxlin

    baxlin Hardcore MB Enthusiast

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    As an alternative to claying, BarKeepers Friend (about two quid from a decent hardware shop) is recommended on Detailing World to really clean a windscreen, and Meths to degrease the wiper blades.

    Re cheap wiper blades, I never buy branded, particularly Bosch, as I choose to replace them each year anyway, and I’ve found dear ones only come in an expensive box, for all the difference they make.....
     
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  9. alecmascot

    alecmascot Hardcore MB Enthusiast

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    Look carefully at the wiper rubbers when the blades are in action. The rubbers should reverse their angle when the arm reverses direction.
    If they do not then they will judder and you need to twist the wiper arm to set the correct angle-of-attack.
     
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  10. Headhurts

    Headhurts Hardcore MB Enthusiast

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    I had a new E300 Hybrid in 2014 and the wipers juddered and skipped across terribly.

    I now have a 2016 E350 which I purchased new the wipers on this car skip and judder across the screen terribly making it arduous to drive in the wet.

    I do not use any products on the screen that could cause this.

    The current car has been into the dealership for this and has had several new wipers, a specialist tool to adjust the arms and the screen has been cleaned several times.

    The last time it was in they were stumped but tried a couple of other E Class cars and they also exhibited this trait to a lesser degree.

    I will try a clay bar to see if this works.

    Robin
     
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  11. OP
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    stevegbr

    stevegbr New Member

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    just seen this on you tube, anyone done this?


     
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  12. Dec

    Dec Hardcore MB Enthusiast

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    AS you have not long had the car, you don’t know how old the blades are, if the are old, the rubber will become hardened and warped and the blade will be inclined to be pushed, causing chatter, and not dragged across the screen, no chatter.

    I wouldn’t bend or twist the blade arms at all, can’t see it making any difference to the blade pressure on the screen.


    New blades of the correct Mercedes factory specifications will be the best outcome.

    Cleaning the screen, twice, with Cif will remove any contaminates on the screen, that’s what I use before washing the car.


    Dec


     
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  13. CowleyStJames

    CowleyStJames Hardcore MB Enthusiast

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    Further to my fix, for me, I used this from Halfords.[​IMG]
    Think it only cost me £7
     
  14. OP
    OP
    stevegbr

    stevegbr New Member

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    some very valued tips here, thanks to all of you for your help, will be trying these out this weekend, waiting for the things to arrive. will let you know the results. :):):)
     
  15. ToeKnee

    ToeKnee Hardcore MB Enthusiast

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    For a deep screen clean, I use supermarket own brand soap filled wire wool (like brillo pads). Perfect on glass, just don't try them on the body work!
     
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  16. OP
    OP
    stevegbr

    stevegbr New Member

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    washed the windscreen today the clayed the screen, washed it again then applied rain x, cleaned the wipers, then tested the wipers, still get a small judder at the start, as you can see in the video, think i will change the wipers next, hopefully that will stop it. what do you think?


     
  17. Headhurts

    Headhurts Hardcore MB Enthusiast

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    Trying them dry will cause judder, mine work perfectly with washers as it’s a lubricant but in rain they judder.

    I have clayed my screen so just waiting for a rainy day to try them in real life situation.

    I did expect more from a £40,000 plus car, my wife’s Aygo sweep flawlessly over the screen.

    Robin
     
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  18. Gazwould

    Gazwould Hardcore MB Enthusiast

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    Yeah watch out for Steve , he don't use any lube :confused:
     
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  19. OP
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    stevegbr

    stevegbr New Member

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    it was wet when i first used the wipers and done the same thing, it seemed to get better as the screen dried, then when i done the video it was back, i know what you mean though about a dry windscreen.
     
  20. OP
    OP
    stevegbr

    stevegbr New Member

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    fitted new wiper blades today, it now works perfect, job sorted. thanks for all the good advice.
     

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