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  #1  
Old 10-30-2009, 11:36 PM
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dead pixels on nav screen MK4

recently a few cluster of pixels went dead on my nav screen. they are now just grey all the time. it's not a large part of the screen and it doesnt affect my ability to see what the screen reads but it is annoying. anyone have this problem?
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Old 10-31-2009, 02:56 PM
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Like whole groups, or just a few pixels? If a whole group went bad, I would assume you've got a bad connection somewhere that could be cleaned and fix the problem, kinda of like the OBC pixels. If you've just got single little individual pixels, try using something like a plastic pen cap or a PDA stylus and rub circles around it till it finally frees itself.
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Old 11-02-2009, 05:04 PM
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it was a whole group on 2 different parts of the screen. Even when the car is off, the 2 spots are still gray in color. if it is a bad connection, how do i fix that?
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Old 11-02-2009, 05:31 PM
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That's a whole new realm for me. I don't have navi in any of my BMW's, so you might have to search around the forums or maybe just start taking the deck apart slowly till you can get inside to start cleaning it. I've used electronic parts cleaner from Radio Shack for random things, just make sure there is no power to the unit and don't spray it on the screen directly...just remove and spray the connections.
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650hp 10 X5///M - Stage 2, Vibrant 1794's , gutted cats, custom intake, AC Forged 22's
325hp 98 BMW 740iL - ///M5 6spd, www.bavengine.com w/ Performance Option, electric fan, CF intake tube w/ heatshield, Mag 14816 w/ notched bumper, Bilstein/H&R Stage II/Powerflex

600+hp 02 Harley F150 - MHP900 Stage 3 engine, KB2.3, 8# lower, 60# inj, Walbro FP's

135hp 01 TL1000R - M4 full exhaust, K&N, Yosh box, -1/+2 gears, 2CT's
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Old 11-02-2009, 06:35 PM
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Petertn,
I see the problem your describing quite a bit in Australia.
It seems to affect only X5s here and may have to do with the screen tilted to the sky. It's able to then cop a lot of direct sunshine.

The grey areas appear when the liquid crystal material has degraded and no longer polarises light passing through it.

You can't repair this type of defect.

Only option: Order a new screen.

Last edited by autotronic; 11-03-2009 at 05:13 AM.
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Old 12-16-2009, 05:13 PM
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is this considered dead pixels? (under Aux. Vent). It started out as a couple thin lines but now its getting worse. I change to diff. screens and its still there.


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Old 12-17-2009, 07:43 AM
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This is a form of dead pixel. It's UV damaged liquid crystal fluid that can't polarise light anymore. This sort of defect has a habit of spreading in random directions and can pop up on other parts of the screen. Have not found any way to reverse it.

Is this a picture of an X5?

If so, then covering it from direct sunlight may slow the spread down, although I have no chance to prove this claim.
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Old 12-17-2009, 11:55 AM
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yup its on my X5. i'll get something to cover it up...anything helps i guess.

thanks
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Old 12-17-2009, 12:24 PM
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Quote:
Originally Posted by Franklin Joseph View Post
is this considered dead pixels? (under Aux. Vent). It started out as a couple thin lines but now its getting worse. I change to diff. screens and its still there.
Only real repair is replacement of the LCD screen (just the screen, not the electronics or the housing)

As the other poster said, keep it out of the sunlight

I guess you could call that LCD damage "skin cancer" ....
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Old 12-17-2009, 05:26 PM
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autotronic, did you get my email?
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