windscreen wipers juddering.

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Z3Jeremy
Joined: Sun 23 Jun, 2013 08:40
Posts: 71

  Z3 roadster 1.9i

windscreen wipers juddering.

Post by Z3Jeremy »

Howdy Folks,
Any top tips appreciated, this may seem somewhat trivial however its driving me bonkers! - i,ve recently tried topend Bosch wipers, mid price Halfords wipers and bottom end £1 shop wipers all with the same problem, the juddering across the windscreen is unbearable. The problem is there with or without screen cleaner in the tank and ive tried glass cleaner, washing up liquid, car shampoo, with no improvement. Other than this very happy indeed to be sat behind the wheel of my Z3!
Regards All, Jeremy.
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lordhelpus
Joined: Sat 14 Sep, 2013 09:46
Posts: 128

  Z3 roadster 2.8
Location: Tax Exile

Re: windscreen wipers juddering.

Post by lordhelpus »

This is mostly caused by the pressure on the wiper blade which is applied by the wiper arm. If its too great the blade squashes against the screen too much and prevents the wiper bit of the blade from flicking over on the return wipe, causing the blade to judder against the screen. You can lessen the pressure on the wiper blade by carefully bending the wiper arm just below where the blade attaches away from the screen thereby reducing pressure on the wiper blade. It's a case of trial and error to find the right amount of pressure in order to resolve it.
I remember reading once it was the most common complaint for Mercedes Benz owners come servicing time, so much so that Mercedes went to the trouble of finding the correct pressure to stop it happening........What that pressure was I never found out...... So your in good company.
1997 2.8................ Montreal Blue
Z3Jeremy
Joined: Sun 23 Jun, 2013 08:40
Posts: 71

  Z3 roadster 1.9i

Re: windscreen wipers juddering.

Post by Z3Jeremy »

Lord Helpus!!
That sounds spot on to me, thankyou will try this first thing in the morning - subtle tweeking of the wiper arm angle required then! Chances are it,ll be raining - have a good Friday anyway..

All the best, Jeremy.
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Boysie
Joined: Sat 23 Apr, 2005 14:24
Posts: 1654

  M roadster S50
Location: Wallington Surrey
Contact:

Re: windscreen wipers juddering.

Post by Boysie »

I had this happen on my very first Zed
And yes the older experienced Bmw mechanic
just slightly bent the arm, and made the newbie mechanics onlookers look stupid :D
Ray

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S50 ///M Roadster, Arctic Silver, Imola Red/Black interior
1970 Austin Healey Sprite, Original ' Now Sold :-(
2002 Harley 1130cc V Rod Custom

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t-tony
Joined: Sun 21 Feb, 2010 23:17
Posts: 353

  Z3 roadster 2.0
Location: torksey lock

Re: windscreen wipers juddering.

Post by t-tony »

It isn't the pressure which is applied to the screen which is the problem it is merely the angle at which the wiper blade moves across the glass. IF it judders it is because the wipers blade(ei the edge which touches the screen) is NOT at 90 degrees to the glass. This is easily altered by simply twisting the wiper arm with an adjustable spanner just below where the wiper blade meets the arm.
"Knowledge and experience are not always the same"
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Boysie
Joined: Sat 23 Apr, 2005 14:24
Posts: 1654

  M roadster S50
Location: Wallington Surrey
Contact:

windscreen wipers juddering.

Post by Boysie »

Boysie wrote:I had this happen on my very first Zed
And yes the older experienced Bmw mechanic
just slightly bent the arm, and made the newbie mechanics onlookers look stupid :D
That's exactly what he did
He twisted it

Sent from Boysie via Tapatalk
Ray

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S50 ///M Roadster, Arctic Silver, Imola Red/Black interior
1970 Austin Healey Sprite, Original ' Now Sold :-(
2002 Harley 1130cc V Rod Custom

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Southernboy
Joined: Thu 07 Oct, 2010 12:39
Posts: 6436

  Z3 roadster 3.0i
Location: Johannesburg

Re: windscreen wipers juddering.

Post by Southernboy »

yep...a little Chubby Checker....and do the twist... :D
"Normal is overrated"
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Boysie
Joined: Sat 23 Apr, 2005 14:24
Posts: 1654

  M roadster S50
Location: Wallington Surrey
Contact:

Re: windscreen wipers juddering.

Post by Boysie »

Southernboy wrote:yep...a little Chubby Checker....and do the twist... :D
PM sent
Ray

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S50 ///M Roadster, Arctic Silver, Imola Red/Black interior
1970 Austin Healey Sprite, Original ' Now Sold :-(
2002 Harley 1130cc V Rod Custom

Image
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Southernboy
Joined: Thu 07 Oct, 2010 12:39
Posts: 6436

  Z3 roadster 3.0i
Location: Johannesburg

Re: windscreen wipers juddering.

Post by Southernboy »

That's screwy!!
"Normal is overrated"
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