jim2560

On the 2020, the HUD does have a Brightness adjustment in the MMI.

Dan99

I just checked and found a brightness control in the MMI for the HUD in my 2019 RS5. It does not solve the problem though. Mine is turned up all of the way in the MMI and I still have trouble seeing the HUD with my polarized sunglasses when the dash **** is also turned up all of the way. In addition, the MMI control appears to just set the brightness relative to the dashboard, as both the HUD and dashboard brightness change with the **** on the dash.

Personally, I would like to see the dash lights and HUD brightness controlled with two different ***** so they could co-vary. And, the HUD needs to get much brighter than the dash lights, or deal with polarization in some other way.

stwus

I had to get a new pair of non-polarized glasses for the HUD. There is no way that I can read it clearly without tilting my head here and there.

jim2560

If you rotate the display in the MMI does it help with your polarized glasses? I had polarized lenses on during the time I had a '17 BMW and that did the trick. Just a 10 or 15 degree tilt did it. (I don't use the lenses anymore as the Dr. found polarized lenses caused a problem for my particular vision issues.)

stwus

yes, you can rotate that, but it doesn’t help as it doesn’t change how the HUD light is being projected.

Sebastian3

Use mine all the time. Love it.

Dan99

I have both, but the non-polarized just don't work as well if there is any glare. Try moving your head an inch or two to the right with your polarized glasses. That works for me, but it could be related to my specific prescription and lens.

stwus

It's really annoying to have to move my head frequently in order to see the HUD. Yes, I agree the glare with non-polarized glasses is just sometimes too much. Until someone can invent something to overcome that.... we have no choice.

18A5SB

A wild idea! Perhaps placing something like this on the inside of the windshield where the HUD projects or on top of HUD display glass on the dash may help?

https://www.apioptics.com/

sthulin

The display is already polarized, placing another filter on top will most likely block it out entirely (which is what's happening when you wear polarized sunglasses). Really the only way to fix this is to disassemble the HUD and get a new polarizing filter that is aligned at a slightly different angle.