[Shakespere]

Hiya fellas.

Was in the carwash yesterday and ofcourse it was brushless wash. But then when i dried off and started to drive, I noticed that the outer margin of the glass covering the HUD is reflecting on the windshield, and it is not nice. Once I noticed it now, i cant take my eyes off it. I am pretty sure it was not like that. Or i didnt notice it before???

[AP]

it's the same on the F10. You can see the surrounding of the HUD , more depending upon where the light is coming from.
You do get used to it. Same goes for the speaker in the centre of the dash.(unnecessary in my opinion)

It was most noticable to me coming from an E39 where there was no reflections at all.(Sorry I know but the E39 was very good in a lot of ways!)

So sounds like same issue present in the G30 , does the same go for the Idrive enclosure and the speaker grill?

[Shakespere]

Originally Posted by AP

it's the same on the F10. You can see the surrounding of the HUD , more depending upon where the light is coming from.
You do get used to it. Same goes for the speaker in the centre of the dash.(unnecessary in my opinion)

It was most noticable to me coming from an E39 where there was no reflections at all.(Sorry I know but the E39 was very good in a lot of ways!)

So sounds like same issue present in the G30 , does the same go for the Idrive enclosure and the speaker grill?

No no no.. I dont mean that.. ITs more like the edge of the glass of the HUD area thats reflecting like a shining area. As if the glass has come off or moved.. First i thought my windshield has cracked....

[AP]

ah misunderstood.
back to the dealers then I guess!

[steve090619]

Originally Posted by Shakespere

No no no.. I dont mean that.. ITs more like the edge of the glass of the HUD area thats reflecting like a shining area. As if the glass has come off or moved.. First i thought my windshield has cracked....

My car does the same thing when sun hits it. Wear polarized sunglasses and can't see HUD at all but 2 inch glare is still there. Week of driving the car, I got used to the glare.

[BiGFather]

Can you guys please post some pics of this kind of issue ?

[babaikram]

Sorry, I don't understand the problem being posted. Are you saying we should not use brushes to wash windscreen with HUD?

[steve090619]

Originally Posted by babaikram

Sorry, I don't understand the problem being posted. Are you saying we should not use brushes to wash windscreen with HUD?

look on your windshield where the hud is on a sunny day. you will notice a 2 inch line that reflects sun in windshield. Nothing wrong with windshield, HUD/design issue.

[steve090619]

Originally Posted by BiGFather

Can you guys please post some pics of this kind of issue ?

look a little lower than your hud, you will see a 2 inch line reflect in sun. it looks like a crack but it is not. might even be reflection of hud glass on dash.

[matbl]

Originally Posted by steve090619

Wear polarized sunglasses and can't see HUD at

What? Have they failed with the polarization again? I had that problem for one of the displays on the E91 a while back.

[AP]

but that is the whole point about polarization , it is designed to remove reflections which is exactly how a HUD works. so no surprise that most if not all of it is not visible.

just means your sunglasses have to be non polarizing.

[AP]

but that is the whole point about polarization , it is designed to remove reflections which is exactly how a HUD works. so no surprise that most if not all of it is not visible.

just means your sunglasses have to be non polarizing.

[nil1]

I thought the HUD on the G30 had an option for polarized sunglasses?

[ZigmundUK]

Originally Posted by nil1

I thought the HUD on the G30 had an option for polarized sunglasses?

Let's face it it's lame they can't make it work with polarised lenses. Also makes it lame for the uk where we have wet roads and low sun. The test drive I did hud was amazing, so I might just need to keep 2 sets of glasses in the car from now on.

[AP]

I can't see how they can
the HUD work by reflecting an image off the windscreen (well combining 2 images off the pvc layer inbetween the 2 layers of glass).
polarizing glasses by their nature remove reflections hence it will cancel out most if not all of that reflected image.
physics.

[AP]

I can't see how they can
the HUD work by reflecting an image off the windscreen (well combining 2 images off the pvc layer inbetween the 2 layers of glass).
polarizing glasses by their nature remove reflections hence it will cancel out most if not all of that reflected image.
physics.

[matbl]

Not entirely true.
Polarized glasses let one polarization of light through. LCD displays emit polarized light. So a car with a fully digital LCD dash needs to emit that with the same polarization tgat glasses let through. Same goes for a HUD except it is a reflection. Depending on how the reflective layer works it can preserve, reverse or disperse the polarization of the HUD.

[AP]

thanks thats a better explanation.

[ZigmundUK]

Originally Posted by matbl

Not entirely true.
Polarized glasses let one polarization of light through. LCD displays emit polarized light. So a car with a fully digital LCD dash needs to emit that with the same polarization tgat glasses let through. Same goes for a HUD except it is a reflection. Depending on how the reflective layer works it can preserve, reverse or disperse the polarization of the HUD.

Yes this. Just need to get the polarisation right.

[Shakespere]

ok... i had my car in for hard waxing. i also asked for leather protection and told them about the reflection. they cleaned the HUD screen cover and the reflection is gone.. it was that a line of dust had collected and was causing the reflection.. will let you know if it comes back...

[AP]

got any pics of what the HUD is displaying.
interested as a comparison the the HUD from the F10 (and other earlier models)

[steve090619]

Originally Posted by AP

got any pics of what the HUD is displaying.
interested as a comparison the the HUD from the F10 (and other earlier models)

I can't pull up the g30 forum from my iphone or i would show a picture of what everyone is talking about.