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ijwoo1
Member Since: 04 Jul 2010
Location: London
Posts: 27
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| Heated screen wires, misting and glare |
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I'm curious if any one else finds the glare produced by the heated screen filament wires distracting ?
I've had other cars with heated screens and it's never bothered me, but at night the glare produced by light from oncoming cars reflecting off the wires in the glass really impacts visibility in my opinion.
I'm beginning to think the effect is made worse by the inside surfaces of the glass. I know BMW use a plastic coating, but in the case of the glass in the D4 I'm not sure if its plastic or some other coating, but in any event glass cleaner doesnt seem to clean it as well as I would expect. The effect is as if the glass is constantly smeary or dirty and no amount of cleaning removes some greasy film.
What also doesnt seem right is how quickly the inside mists up. Another sign the glass is dirty? Immediately after cleaning glass I would expect to get a consistent uniform misting if I breathe on it, but instead I get very distinct patterns of heavy lines and circles appearing.
If you feel like cleaning the inside of the glass and then breathing on it, front windscreen or side windows, I'd be very interested to know what you see.
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 Tue Nov 16 2010 2:15am |
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harrim51
Member Since: 29 Aug 2009
Location: Malvern
Posts: 275
 
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I have a D3 and found it very annoying at first but now don't notice it 
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| Tue Nov 16 2010 9:23am |
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stapldm
Member Since: 11 Sep 2006
Location: Swine Town
Posts: 2302
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ijwool, what have you used to clean the glass? Quite often the normal detergent based glass cleaners seem to leave a heavy residue of diesel grease behind (from other vehicles exhausts) . I find that my (admittedly D3) screen only glares when it's contaminated. Very occasionally I invest in a couple of hours Karate Kid training with a bottle of abrasive glass cleaner to really get it clean, then finish off using a solvent to utterly clean the glass.
I use Methylated spirits or isopropyl alcohol. Stateside, I believe you can also use surgical spirits, though in the UK our surgical spirit has other additives that make it useless at cleaning glass, so a test on a rear window may be sensible first.
The circles and lines you are describing are almost certainly the result of the vacuum pads and bumpers used by the auto assembly robots on the production line; they tell me that you have a coating or contamination on the glass that a deep clean with a professional cream glass cleaner followed by a solvent wash may help.
Before going that route though, does anyone know if there's supposed to be an IR reflective coating on D4 windscreens that abrasive/solvent cleansing may affect? It's wise to know these things before  happens... Dr. Ian Malcolm:
"Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should."
Transgenic tomato anyone?
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| Tue Nov 16 2010 11:47am |
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kernowexpeditionaryforce
Member Since: 15 Jan 2009
Location: Kernow
Posts: 315
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try some autoglym screenwash booster - really works!
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| Tue Nov 16 2010 11:55pm |
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A1GSS
Member Since: 12 Sep 2010
Location: Saffron Walden, Essex
Posts: 1441
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Or the Autoglym screen / glass cleaner. Good stuff. Don't try Windowlene... Graham
Formerly known as Antoniasdad
TDV6 Discovery 3 XS in Stornoway Grey / Alpaca
GONE: TDV8 FFRR Vogue in Stornoway Grey / Jet
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| Tue Nov 16 2010 11:56pm |
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MacLeod 313
Member Since: 18 Apr 2008
Location: away
Posts: 10723
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I found the OEM factory fit glass no problem with vision, but had my screen replaced last year and immediately noticed the copy autoglass version more noticeable with the filiments. I immediately refused the job and a OEM one was sourced, no problems now
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| Wed Nov 17 2010 12:00am |
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DiscoDad
Member Since: 06 Nov 2006
Location: Just off the A1 between the M18 & M62
Posts: 2897
 
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FWIW, I still have residue on the inside of my screen from the suction pads after a year!
I must say though, I was expecting it to be on the outside!
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| Wed Nov 17 2010 12:06am |
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caverD3
Member Since: 03 Jul 2006
Location: Sydney
Posts: 5287
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Once you notice the elements you will focus on them. The more you focus on ther road the less you will notice them.  "A society that will trade a little liberty for a little order will lose both- and deserve neither"
Thomas Jefferson.
TDV6: Adaptive Headlights, Electronic Rear Diff, ARB Bar, Blaupunkt Speakers, JVC Powered Subwoofer, Removable Snorkel, Mitchell Bros Tow Hitch, Pioneer After Market Head Unit, Zenarc Touch Screen, In Car Sub-notebook, GPS Anntenna, Steering Wheel Control Adaptor, Remote Adjustable Supension Rod System, Taxside Dual Battery System.
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| Wed Nov 17 2010 3:14am |
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