Juddering wiper blades

Juddering wiper blades

Author
Discussion

DickP

Original Poster:

810 posts

110 months

Saturday 3rd October
quotequote all
Hi,

I have replaced the wipers on my car for new Bosch items and they began juddering across the windscreen. As I have washed the car a few times since with no improvement, I replaced them again with another set thinking that they may have been a bad batch. This has not improved matters.

Having ran my fingers lightly over the areas where it judders, my fingers also judder.

What do I need to use on my car's windscreen to remove whatever it is which might be causing the problem?

Thanks,

TyrannosauRoss Lex

25,827 posts

172 months

Saturday 3rd October
quotequote all
DickP said:
Hi,

I have replaced the wipers on my car for new Bosch items and they began juddering across the windscreen. As I have washed the car a few times since with no improvement, I replaced them again with another set thinking that they may have been a bad batch. This has not improved matters.

Having ran my fingers lightly over the areas where it judders, my fingers also judder.

What do I need to use on my car's windscreen to remove whatever it is which might be causing the problem?

Thanks,
Try a glass polish or something like Bar Keeper's Friend with a polishing pad or at least a microfibre cloth, followed by some isopropyl alcohol (if you can get any!).

Brainpox

2,905 posts

111 months

Saturday 3rd October
quotequote all
Something like this maybe https://www.gtechniq.co.uk/shop/auto/glass-metal/g...

You can also 'lubricate' the blades by putting some glass cleaner on a cloth and pinching the blade. Also cleans them and makes them last longer.

stevesingo

4,214 posts

182 months

Saturday 3rd October
quotequote all
Alcohol hand gel on tissue paper works a treat at removing road oils and grime from windscreens.

A1VDY

3,347 posts

87 months

Saturday 3rd October
quotequote all
Although it's meant for paintwork Autoglym Super Resin Polish is brilliant on glass. Use a small amount on a new microfibre cloth, it'll cure the juddering..

Longtime Lurker

140 posts

43 months

Saturday 3rd October
quotequote all
A1VDY said:
Although it's meant for paintwork Autoglym Super Resin Polish is brilliant on glass. Use a small amount on a new microfibre cloth, it'll cure the juddering..
Whenever i polish my car with Super Resin Polish I always do the glass and the lights as well, I'm sure my neighbours are sitting thinking what is he doing!!

normalbloke

4,087 posts

179 months

Saturday 3rd October
quotequote all
Keep it simple. Use the good wiper blades you have.Keep them clean with methylated spirits. Clean the windscreen with methylated spirits. Use a decent washer fluid( nothing comes close to Decosol). Change blades at the end of the summer. End of.

Sheepshanks

21,987 posts

79 months

Saturday 3rd October
quotequote all
Longtime Lurker said:
A1VDY said:
Although it's meant for paintwork Autoglym Super Resin Polish is brilliant on glass. Use a small amount on a new microfibre cloth, it'll cure the juddering..
Whenever i polish my car with Super Resin Polish I always do the glass and the lights as well, I'm sure my neighbours are sitting thinking what is he doing!!
confused What happens as it starts to wear off?

I always use their Car Glass Polish. Don't use a cloth that's been washed with fabric conditioner. I've never tried anything else as it's always worked.

OllieJolly

51 posts

76 months

Sunday 4th October
quotequote all
DickP said:
Hi,

I have replaced the wipers on my car for new Bosch items and they began juddering across the windscreen. As I have washed the car a few times since with no improvement, I replaced them again with another set thinking that they may have been a bad batch. This has not improved matters.

Having ran my fingers lightly over the areas where it judders, my fingers also judder.

What do I need to use on my car's windscreen to remove whatever it is which might be causing the problem?

Thanks,
If you're waxing it each time, or shampoo with wax in it etc, that can cause judder.

The_Nugget

413 posts

17 months

Sunday 4th October
quotequote all
TyrannosauRoss Lex said:
Try a glass polish or something like Bar Keeper's Friend with a polishing pad or at least a microfibre cloth, followed by some isopropyl alcohol (if you can get any!).
You can get vast quantities of isopropyl alcohol from eBay.

Cyder

6,702 posts

180 months

Sunday 4th October
quotequote all
As unpopular a suggestion as it may be, try the OE aftermarket wiper blades.

The springs inside the blades are tuned to match the curvature of the screen and apply even pressure.

After market generic blades are usually OK but will have a generic spring pressure that can lead to the juddering.

Summit_Detailing

1,382 posts

153 months

Sunday 4th October
quotequote all
Sounds like the glass is just dirty.

A specific cerium oxide based glass polish will sort it out easily.

Carpro ceriglass is my preferred choice, been using it for years.

https://www.detailedclean.co.uk/engine-and-exterio...

Cheers,

Chris

DickP

Original Poster:

810 posts

110 months

Monday 5th October
quotequote all
Hi,

Thanks for the replies.

I have tried several times now to clean the windscreen with a variety of window cleaners and rags/clothes, to no positive effect.

The wipers run smooth when dry, but not when wet. I don't understand how this can happen.

I appreciate the answers but I am now incredibly confused from the different proposals and having read that the windscreen can also end up too clean and cause wipers to drag and judder?! confused

As I need to use the car for work, and the days being more wet than dry now, I really need to get this corrected asap as it's making the car almost undriveable. As extreme as it may sound, a replacement windscreen might be on the cards if I can't figure this out in a matter of days. mad

Thanks,

Cyder

6,702 posts

180 months

Monday 5th October
quotequote all
Did they judder with the old blades before you put the Bosch blades on?

If no then see my post above about trying the OE blades. Designing wiper systems to clean a screen properly is one of the (many) things I do for a living.

DickP

Original Poster:

810 posts

110 months

Monday 5th October
quotequote all
Hi,

Not sure where to get OE blades from?

The wiper blades I had when they did not judder were the same model of Bosch. They were wearing and not clearing the windscreen very well after 15k miles and 6 months on the car, so I replaced them (not having washed the car first) and that is when the judder arose.

Thanks,

DickP

Original Poster:

810 posts

110 months

Tuesday 6th October
quotequote all
Hi,

I have now used methylated spirits on the windscreen to try and make sure there is absolutely no oily substance on it. The wipers drag even worse now.

I don't understand how I can go from a car that had wipers which were fine for 6 months and 15k miles for then the replacement set of exact same model and type to be cause these problems. If it were a wiper design issue then why did it not happen with the first set I fitted? confused

Thanks,

Sheepshanks

21,987 posts

79 months

Tuesday 6th October
quotequote all
DickP said:
Not sure where to get OE blades from?
The franchise dealer! He just means blades from the vehicle maker, although I'm not sure I buy the spring tension bit. I've always used Bosch on all the family cars and not had an issue.

Years ago wiper arms twisting so they didn't sit parallel to the surface of screen used to be a thing but I haven't heard of that for years - you used to twist them (carefully) so they were parallel.

I have vague recollections of someone being unable to resolve juddering wipers and eventually changing the screen!

DickP

Original Poster:

810 posts

110 months

Tuesday 6th October
quotequote all
Hi,

Oh right I understand. Not sure I would be able to buy X-Type wiper blades from a JLR dealer now though?

As a final experiment I swapped the wiper blades between my car and my father's (which is also an X-Type). The judder is now present on my father's car but mine now wipes fine with his blades. His car also had the same model of Bosch wiper blades, just a year older.

Is this indicative that I might have had two sets in the month of a bad batch?

Both pairs were purchased from ECP.

Thanks,

Sheepshanks

21,987 posts

79 months

Tuesday 6th October
quotequote all
DickP said:
Is this indicative that I might have had two sets in the month of a bad batch?
I guess that's possible, but I'd be thinking that not so much a bad batch, but maybe something has changed in the design or manufacturing process. That's assuming ECP haven't bought a load of counterfeit Bosch wipers!

DickP

Original Poster:

810 posts

110 months

Tuesday 6th October
quotequote all
Hi,

I suppose the question is now do I buy another set of the same Bosch wiper model but from a different supplier? wobble

Thanks,