Blendfreier Fernlichtassistent - Fehler ?

[bambusaaa]

Grüß Euch,

habe jetzt seit einer Woche einen F31 mit Fernlichtassistent.
Dazu habe ich noch das Adaptive Kurvenlicht, also sollte ich dann den blendfreien Fernlicht-Assistenten haben (Sicht-Paket).
Ich bin diese Woche öfters in der Nacht gefahren, aber bei mir hat der Fernlicht-Assistent das Fernlicht nur EIN oder AUS geschaltet und nicht einzelne "Sektoren" ausgeblendet.

Ausstattung:

S522A Xenon-Licht
S524A Adaptives Kurvenlicht
S5ACA Fernlichtassistent

Normalerweise sollte ja nur das entgegenkommende Fahrzeug ausgeblendet werden und rechts sollte trotzdem das Fernlicht aktiv sein oder?

Verstehe ich in der Funktion etwas falsch? Oder funktioniert das nur bei bestimmten Bedingungen?

Vielen Dank schon einmal.

[Duftbaumdeuter49859]

Zitat:

@HenrikP schrieb am 23. April 2015 um 16:48:39 Uhr:

Ich hab bei mir immer unterschiedliche Phasen bei identischen bzw. vergleichbaren Umgebungsverhältnissen. Mal blendet er brav nur einzelne Bereiche aus, mal blendet er nur komplett auf und ab. Nervt ein wenig und ist nicht nachzuvollziehen. Das lenkt auch total vom Fahren, man denkt immer irgendwie mit dem Licht und an das Licht.

Obwohl der Fernlichtassistent bei mir super funktioniert und sich niemand geblendet zu fühlen scheint, ist das Rumgewerkel der Scheinwerfer oft schon ablenkend. Ich bin gestern eine stark befahrende kurvige Landstraße im Dunkeln gefahren, und der FLA hat pausenlos agiert. Es hat mich fast a bisserl irritiert, wenngleich ich das System genial finde und nicht mehr missen möchte...

[TheRealRaffnix]

Zitat:

@318iKutscher schrieb am 23. April 2015 um 17:01:01 Uhr:

Zitat:

@HenrikP schrieb am 23. April 2015 um 16:48:39 Uhr:

Ich hab bei mir immer unterschiedliche Phasen bei identischen bzw. vergleichbaren Umgebungsverhältnissen. Mal blendet er brav nur einzelne Bereiche aus, mal blendet er nur komplett auf und ab. Nervt ein wenig und ist nicht nachzuvollziehen. Das lenkt auch total vom Fahren, man denkt immer irgendwie mit dem Licht und an das Licht.

Obwohl der Fernlichtassistent bei mir super funktioniert und sich niemand geblendet zu fühlen scheint, ist das Rumgewerkel der Scheinwerfer oft schon ablenkend. Ich bin gestern eine stark befahrende kurvige Landstraße im Dunkeln gefahren, und der FLA hat pausenlos agiert. Es hat mich fast a bisserl irritiert, wenngleich ich das System genial finde und nicht mehr missen möchte...

Hatte ich nur die ersten paar Monate. Mittlerweile kann ich das komplett ignorieren. Ich freue mich zwischendurch höchstens mal, wie genial das System funktioniert. Ablenken tut es nicht mehr.

Und komplett abblenden tut er bei mir nur da, wo es auch tatsächlich nötig ist.

[Trennschleifer25173]

Hallo. Sorry my knowledge of German is lacking so i have to write this in English, i hope you don't mind. I have a 2014 F31 with similar lighting components as Bambusaaa:

S522A Xenon-Licht
S524A Adaptives Kurvenlicht
S5ACA Fernlichtassistent

However, for BMW vehicles sold to the US, BMW also added these:
S5APA Decodierung blendfr. Fernlicht Assistent
S8S4A Decodierung variable Lichtverteilung

So even though we have the same options in the car, the S5APA prevents blendfreier Fernlichtassistent from working. So in the US, the Fernlichtassistent just turns on and off. It does not create a tunnel to prevent glaring other drivers. Some of the owners in the US, myself included, have figured out a way to remove the two Decodierung and make the headlights almost blendfreier. I have some questions that i hope you are able to help.

1. When the Fernlichtassistent is on, does it work like this video? If you look at the video, at 0:06, you can see light shadow (tunnel). According to some, the mask or shadow is caused by Walze (roller) in the headlight.
https://www.youtube.com/watch?v=CgGN-OWYWjM

2. Or does the Fernlichtassistent work like this video? Starting at 2:28, you can see how the Fernlichtassistent turns on the Fernlicht on the right side and then also the left side, without glaring the car in front.
https://www.youtube.com/watch?v=KZbLSIdly2c

3. Some people are saying that adaptive headlights for the US are lacking Walze (roller) and that's why Blendfreier does not work properly. Would you be able to do this test for me and let me know if the Fernlicht in your car makes the same sound when you turn it on/off? Just turn on the car (but don't start the engine), turn off any fan/radio, and then turn the high beam on/off several times. I recorded the sound made by the Fernlicht when i was turning it on/off several times.
https://www.youtube.com/watch?v=609PO3PUUes

Thank you so much!

[Spurverbreiterung136536]

Hey ktula,

all 3 Videos are correct.
The first one is merging into another street on the left side, so the whole left side ist masked out.
In the second one there is only one car in front so its possible to turn on the lights left and right. If the car would move more to the left or right or another car is coming towards or there is an intersection with other cars on the side, than the whole side would be masked out.
Roughly said the assistant only masks 3 parts. The middle in front of you with a dynamic range, or the complete left or right side if there are any cars.

I didnt listen to my car like in the third Video, but if you turn on 'Fernlicht' you always get full light. The adaptive 'Fernlicht' has an extra Button and is only active at speeds >50kmh.

Greetings

[Trennschleifer25173]

Zitat:

@renozeross schrieb am 22. Juli 2015 um 08:12:30 Uhr:

Hey ktula,

all 3 Videos are correct.
The first one is merging into another street on the left side, so the whole left side ist masked out.
In the second one there is only one car in front so its possible to turn on the lights left and right. If the car would move more to the left or right or another car is coming towards or there is an intersection with other cars on the side, than the whole side would be masked out.
Roughly said the assistant only masks 3 parts. The middle in front of you with a dynamic range, or the complete left or right side if there are any cars.

I didnt listen to my car like in the third Video, but if you turn on 'Fernlicht' you always get full light. The adaptive 'Fernlicht' has an extra Button and is only active at speeds >50kmh.

Greetings

Thank you very much for responding! In the first video, the mask is very clear and sharp. But it is difficult to see that in the second video. Does the Blendfreier Fernlichtassistent in your F31 work like the first video or the second video? Or both?

I created the video below from a test two nights ago. This shows how the "Blendfreier" Fernlichtassistent in a 2014 US F31 is not working. It's best to watch this in full screen. At 0:15, as the Fernlichtassistent turns on the Fernlicht, you can see the car in front is illuminated, which is not what a Blendfreier system is supposed to do. Then at 0:22, the Fernlichtassistent dipped headlight on the left side (driver side) but the car in front is still illuminated. It's not until 0:28 when i manually turned off the Fernlichtassistent that the car in front goes dark.

https://www.youtube.com/watch?v=6jue1kK2-9c

I don't mean testing the Fernlichtassistent in the third video. I meant, with your car already parked, turn on the ignition but not the engine (and turn off the fan and radio to keep it as quiet as possible). Then turn on and off the Fernlicht, like how you would flash another driver. If you would be kind enough to perform this test, that would be great! Some users in the Bimmerfest.com forum mentioned that if the xenon adaptive headlights sound like the third video, then it's missing a crucial component called the Walze (roller) that creates the dynamic mask. I just want to find out if that is true.

Danke schön!

[Spurverbreiterung136536]

I think in the first Video the light-adjustment even without Fernlicht is way to short. If Fernlicht masks out Parts in front of you, you should have at least standard dimmed lights.

Your last Video is working fine for me. The car in front of you doesnt get more light with Fernlicht than without Fernlicht. Your light is adjusted right till his bumper. When you turn the assistant on you can see how the beams split and the sides get more light. It might irritate that the roadsigns reflect more than the car in front of you.
And as the car gets more to the left side, this side is completely masked out.

Unfortunatly its to loud in my streets to record or clearly listen to the sound of the 'Fernlicht', but i tried with standing next to the car and it sounds like your 'click/clack' in the third Video.

[Trennschleifer25173]

Vielen dank for helping me test this. Just to confirm, you have Blendfreier Fernlichtassistent in your F31?

Do you mean the Blendfreier Fernlichtassistent shown in the last video is working? Because if you look at the car in front closely - best to watch that video in full screen - you can see the back of the car gets more light the moment the Fernlichassistent turns on the Fernlicht, which is not what a Blenfreier system is supposed to do.

[TheRealRaffnix]

Zitat:

@ktula schrieb am 23. Juli 2015 um 09:09:44 Uhr:

Vielen dank for helping me test this. Just to confirm, you have Blendfreier Fernlichtassistent in your F31?

Do you mean the Blendfreier Fernlichtassistent shown in the last video is working? Because if you look at the car in front closely - best to watch that video in full screen - you can see the back of the car gets more light the moment the Fernlichassistent turns on the Fernlicht, which is not what a Blenfreier system is supposed to do.

Maybe you should try to manually activate the high beam to test it. Then you would see that the high beam isn't fully activated. The assistant works perfectly fine in your video. What you see in front of the car is just a little flare light which illuminates the reflectors of the car in front of you. The high beam is just activated at the left and the right side of the car in front.

[Trennschleifer25173]

Zitat:

@TheRealRaffnix schrieb am 23. Juli 2015 um 09:16:57 Uhr:

Maybe you should try to manually activate the high beam to test it. Then you would see that the high beam isn't fully activated. The assistant works perfectly fine in your video. What you see in front of the car is just a little flare light which illuminates the reflectors of the car in front of you. The high beam is just activated at the left and the right side of the car in front.

The problem is when i tested this with another driver, who has the same Fernlichtassistent system, when i was driving in front of him, he had the Fernlichtassistent enabled and the Fernlicht was on, from the rearview mirror in my car, i could definitely see some glare. The glare was not as bad as a manual high beam but it's definitely more glare than when the Fernlichtassistent was off. So i am just wondering how the Blendfreier Fernlichtassistent is supposed to work for cars in Germany that is equipped with such a system. Should other drivers be expecting to see some glare? That seems to defeat the meaning of the term "Blendfreier".

[TheRealRaffnix]

Zitat:

@ktula schrieb am 23. Juli 2015 um 09:30:53 Uhr:

Should other drivers be expecting to see some glare? That seems to defeat the meaning of the term "Blendfreier".

No, it doesn't 🙂 Just let the assistant do the work and you'll realize that it works and it doesn't bother anybody.

[Spurverbreiterung136536]

Problem is that this Test is not stable reproduceable with moving conditions.

My car has following options (same as yours):
S522A Xenon Light
S524A Adaptive Headlights
S5ACA High-beam assistant
And it looks the same as in your last video.

The High-beam assistant gets simplier if you dont have S524A adaptive Headlights. Then its just going on/off.
That you see more glare on the front car or in your rearmirror might be the assistant trying to enhance the range of the beam to the car in front of you. With standard dimmed lights this range is fixed.
I dont know if this is really a function of the assistant but it would make sense.

[Trennschleifer25173]

Zitat:

@TheRealRaffnix schrieb am 23. Juli 2015 um 09:50:44 Uhr:

No, it doesn't 🙂 Just let the assistant do the work and you'll realize that it works and it doesn't bother anybody.

Perhaps i should explain this a little bit better. In all the BMW vehicles sold in the US, if the cars come with adaptive headlights, high-beam assistant and xenon (or LED), they will include the following two options as well:

S5APA Decodierung blendfr. Fernlicht Assistent
S8S4A Decodierung variable Lichtverteilung

I think the reason BMW included the "S5APA Decodierung blendfr. Fernlicht Assistent" option is because of a really outdated (more than 50 years old) American regulation requiring all vehicle headlights be capable of switching between high beam and low beam. Essentially, the law is saying that when the headlights are being operated, it can either operate in the low beam mode or the high beam mode, not both at the same time. As we all know, BMW's Blendfreier Fernlichtassistent uses both the high beam and the low beam simultaneously, depending on the traffic condition. The "S5APA Decodierung blendfr. Fernlicht Assistent" option turns the smart Blendfreier Fernlichtassistent into a dumb on/off only system.

So the assumption that some of us BMW owners here in the US made is that if we remove "S5APA Decodierung blendfr. Fernlicht Assistent", then it would allow the Fernlichtassistent to work like the BMWs in Europe. Another assumption was that the adaptive headlights (Xenon or LED) are exactly the same as in Europe.

Initially, removing the two Decodierung appeared to allow the system to function as Blendfreier Fernlichtassistent. But recent discoveries have made us questioned if the system was truly Blendfreier. On test drives involving other drivers, they reported being glared when the Fernlichtassistent was active. There were some success recently for cars equipped with LED adaptive headlights. Perhaps there are some hardware differences in the Xenon adaptive headlights between the cars sold in Europe and those sold in the US. That's why i was hoping the kind people in this forum could help us figure this out. Are the Xenon adaptive headlights in the US missing the hardware component called Walze (roller) that is supposed to create a dynamic mask to avoid glaring other drivers? Or do the Xenon adaptive headlights use a different method to create the mask?

According to several users in the Bimmerfest.com forum, the US xenon adaptive headlights are equipped with a "flap" instead of a roller and that's why they are not Blendfreier. And one way to check if a flap is installed, according to one user, is to manually turn on/off the high beam and listen to the sound it makes.

I asked renozeross to perform the manual high beam on/off test for that reason. But it seems like renozeross's car makes the exact same sound as mine, so kind of rules out the manual high beam test as a way to find out if a flap is installed in the headlights.

[compert]

The best way in my opinion is to drive on a road with long curves at >40mph.

The car in front should only have low beam enabled, the car in the back (not to close) "Blendfreier Fernlichtassistent".
You should a very clear narrow shadow around the car in front and to both sides lots of high beam.

When the road gets kurvy the light and shadow should follow the car in front seemless without lagging or the high beam ever hitting the car in front.

You alway have some flares, even with normale low beam - how else would you recognise street signs at the side of the road, which are above low beam height?

[Trennschleifer25173]

Zitat:

@compert schrieb am 23. Juli 2015 um 21:05:02 Uhr:

The best way in my opinion is to drive on a road with long curves at >40mph.

The car in front should only have low beam enabled, the car in the back (not to close) "Blendfreier Fernlichtassistent".
You should a very clear narrow shadow around the car in front and to both sides lots of high beam.

When the road gets kurvy the light and shadow should follow the car in front seemless without lagging or the high beam ever hitting the car in front.

You alway have some flares, even with normale low beam - how else would you recognise street signs at the side of the road, which are above low beam height?

Thank you for responding. I think the issue for owners here in the US, especially those with Xenon adaptive headlights, who are trying to get Blendfreier Fernlichtassistent working like in Europe is the "Blendfreier Fernlicht" glare on the car in front is way more than the normal glare from low beam. I wish i could say when the glare-free high beam is engaged that a very clear shadow (or tunnel) is seen around the car in front but i don't think we are seeing that. From my observations during my test drives, when the Fernlichtassistent turns on the high beam and there's a car in front, it attempts to split the high beam. That is, the driver side high beam would point more to the left and the front passenger side high beam would point more to the right, but there is nothing to create the shadow (tunnel). Because there is no shadow or tunnel, the car in front gets glared.

I am trying to figure out if this shadow (tunnel) can be configured by coding the car. That would be the best case scenario. So far by comparing the modules (or ECUs) between Europe F31 and US F31, i am not finding any significant differences that could explain why it's not quite working correctly for us. So i am leaning toward the possibility that there are hardware differences in the Xenon adaptive headlights.

[Spurverbreiterung136536]

Maybe we should look for the Partnumbers of these Headlights?

And indeed they are different between EU and USA:

http://www.etk.cc/.../
63 11 7 338 701
63 11 7 338 702

http://www.etk.cc/.../
63 11 7 338 707
63 11 7 338 708

I dont know if thats an argument. The EU-Parts are cheaper and weight 40g less? But this could just be for transport, duty and packaging.