RNS-E flickers and resets sometimes in B5 A4/S4

this is a known issue with B5 installs..

http://www.navplus.us/forum/viewtopic.php?t=779

i havent heard anything in a while..

I have the same issue with my C5 A6

Does any one know where is the ambient light sensor on 2000 A6?
Is it also located under 0 in the cluster?

:?:

Vlad,
if it located under the "0" in the cluster, then this could easily be addressed by adding some sort of shielding to that sensor....which of course means removing the cluster and the clear plastic plexiglass.

I wonder if this ambient sensor is similar to the technology used in the interior auto-dimming rearview mirror. If so, maybe a small piece of black plastic tape will help.

This sounds like more of a hardware than a software issue. Seems like 50% of the C5 A6 (pre-2002) and B5 A4/S4 are seeing this problem. I wonder why not all have had this happen?? :?

I added a small piece of plastic over the sensor i will watch for the next couple of days and see what happens.

Could there be a way to disable that sensor without opening the cluster? Maybe by cutting a wire or via a VAG COM? What do you guys think?

this might be a bit early to tell but on the way to work unit didn't blink once. The only thing i noticed is that the dash seems a bit dimmer than before but i can get used to that if that solves the problem.

vladkotik said:

this might be a bit early to tell but on the way to work unit didn't blink once. The only thing i noticed is that the dash seems a bit dimmer than before but i can get used to that if that solves the problem.

Click to expand...

I tired covering the sensor months ago and found it didn't stop the blinking entirely. There was one more problem - the DIS was too dim to read in bright light conditions. Since it thinks it is dark all the time with the sensor covered, the dash lighting is turned down.

I am waiting for someone to figure out how to disable the legal disclaimer or revert the firmware back to 0100.

I noticed that it was darker but my unit hasn't blinked yet. Do you guys think it's a fauly sensor? Is there a way to disable it some other way by Vag? I guess i can live with it being darker as long as it wont blink anymore

went for a short drive and the screen flickered again. I guess that solution didn't work

TeddyBGame said:

This sounds like more of a hardware than a software issue. Seems like 50% of the C5 A6 (pre-2002) and B5 A4/S4 are seeing this problem. I wonder why not all have had this happen?? :?

Click to expand...

Ted, are you sure about this (~50%) ? This is the first time I hear it to be a problem with the a6 ?

Im sure you can turn of the auto dimming feature within VAG-COM. You can set the nedles and scales to come on permantly or only with hedlights or autoadjust. I'll look for the codes and post back.

that will solve the auto dimming but not flickering of RNS-E

Sorry, I thought someone suggested the autodimming feature was causing the RNS-e to flicker.

Yeah, me too. :?:

I don't think autodimming cause the flickering but if there someone can post the Vag codes for disabling auto dimmer on C5 A6 i can try to see if that will change anything. I did block the sensor but that didn't solve anything.

It sounds like the speed signal may be intermittant.

If speed drops to 0, and then up again, you will get the disclaimer...

mine doesn't do that. There is no particular patern that i noticed. It does it sometimes when i'm standing at the light and sometimes on the highway.
No particular place or time. It also does it at night where i dont think ambient light sensor makes any difference sinse it's dark anyways.

vladkotik said:

mine doesn't do that. There is no particular patern that i noticed. It does it sometimes when i'm standing at the light and sometimes on the highway.
No particular place or time. It also does it at night where i dont think ambient light sensor makes any difference sinse it's dark anyways.

Click to expand...

2nd.