[starlights]

My 50i has laser lights with auto high beam function. According to my auth dlr the anti dazzle removal coding has been removed and anti dazzle should function. We drove over unlit country roads and while the auto hb feature worked flawlessly, I couldn’t figure out if no dazzle function was working. The high beams dipped to low when a car was detected ahead.

If no dazzle function works why would the car need to change to low beams instead of high beams at all times with anti dazzle function instead?

[GoldfishTX]

I don't think dealerships usually do this coding for you. If it's a US car, you'll need to get it coded by someone else.

[starlights]

It was previously coded. They just confirmed. Dealership can code (remove code block) now if they choose to (ymmy) on request as its now allowed in the US by DOT.

[TurtleBoy]

Originally Posted by starlights

It was previously coded. They just confirmed. Dealership can code now of they choose to on request as its now allowed in the US by DOT.

This is totally false. Dealers are not allowed to code the anti-dazzle and BMW currently has no headlights that have been tested and meet the new criteria.

In your case you probably had an iDrive update which wiped out the coding.

[starlights]

Originally Posted by TurtleBoy

This is totally false. Dealers are not allowed to code the anti-dazzle as BMW currently has no headlights that have been tested and meet the new criteria.

Not the original point of my question anyway. The car is already coded. Additionally the dealership confirmed that anti dazzle block has been previously removed. The question is about light behavior.

[TurtleBoy]

Originally Posted by starlights

Not the original point of my question anyway. The car is already coded. Additionally the dealership confirmed that anti dazzle block has been previously removed. The question is about light behavior.

And that was explained.

Edit: For others following, in order to get the anti-dazzle working you need to both VO and FDL code the vehicle. Most recommend not to write the change in the VO coding so a dealer can't see it. In the case of the OP it looks like it was written back but then had a later iDrive update which wiped out the FDL coding so that will need to be done again.

[starlights]

No update was done thereafter. Car still on 2020 update

Regardless how would the auto high beam behavior change with no dazzle.
?

[TurtleBoy]

Originally Posted by starlights

No update was done thereafter. Car still on 2020 update

Regardless how would the auto high beam behavior change with no dazzle.
?

Then it wasn't coded correctly. The high beams would stay on and tunnel around oncoming vehicles. There are numerous threads and videos showing how it works.

[starlights]

Originally Posted by TurtleBoy

Then it wasn't coded correctly. The high beams would stay on and tunnel around oncoming vehicles. There are numerous threads and videos showing how it works.

Thanks! This was the response I was looking for. So high beams wouldn’t dip for oncoming traffic with anti dazzle. Good to know ��

[starlights]

Would this work with auto hb or the high beams would need to be engaged manually for anti dazzle to work if it was correctly coded ? (since both provide similar functionality of not blinding oncoming traffic)

[TurtleBoy]

Originally Posted by starlights

Would this work with auto hb or the high beams would need to be engaged manually for anti dazzle to work if it was correctly coded ? (since both provide similar functionality of not blinding oncoming traffic)

I would assume both but have only known people to use the auto-HB's.

[starlights]

Originally Posted by TurtleBoy

I would assume both but have only known people to use the auto-HB's.

Thanks. I will try with manual HBs and check again. Will update if successful. Thanks again for your responses.

[TurtleBoy]

Originally Posted by starlights

Thanks. I will try with manual HBs and check again. Will update if successful. Thanks again for your responses.

Since it is not working on auto it won't on manual. Just contact a coder, many folks are pleased with r33_RGSport , and have it coded. It was either updated after it was originally coded (there were many 2020 versions) or never coded correctly. Dealers know little to nothing about coding so any information from them is suspect.

[TurtleBoy]

Here is a video from a few years ago showing you how they should be working. In the video they turn on the Auto-High beams so that may be a requirement.

[eelnoraa]

Originally Posted by starlights

Would this work with auto hb or the high beams would need to be engaged manually for anti dazzle to work if it was correctly coded ? (since both provide similar functionality of not blinding oncoming traffic)

Most likely not in manual headlight setting. When using manual on, even the steering response and auto high beam will be disabled. This is true for many gen of head lights. All the auto features need to be in auto mode

[starlights]

Thanks for all the excellent information above!

I did notice that when oncoming vehicle was detected the low beams automatically engaged however the reach of low beams varied as the vehicle approached. Sometimes they reached very far. I didn’t see any beam splitting behavior in high beam. I will look closer next time. I am thinking that for headlights to behave as shown in video headlights wouldn’t need to dip to low beams at all since the beams would split.

[David3]

I coded anti-dazzle into my F15 and it works flawlessly. Bummed I cannot do the same on my new G05. Anyway, anti-dazzle when working is obvious. But, under certain conditions (i,e frequently) the HB turn off which is normal behavior.

[BobsM3Coupe]

Originally Posted by David3

Anyway, anti-dazzle when working is obvious. But, under certain conditions (i,e frequently) the HB turn off which is normal behavior.

When anti-dazzle is coded to vehicle, I believe the blue high beam indicator will always stay on, even when the anti-dazzle separates the light beam.

[nosnoop]

Originally Posted by starlights

I couldn’t figure out if no dazzle function was working.

It is very easy to check.
Go to an un-illuminated highway, stay in the right lane, and your high beam (with the blue high beam indicator) should stay ON at all time. The blue indicator would stay on regardless of whether there are cars in front, or cars coming from the opposite lane. And you can see the R shoulder and road signs on your right are illuminated by partial high beam.

[weinerbarn]

Originally Posted by BobsM3Coupe

When anti-dazzle is coded to vehicle, I believe the blue high beam indicator will always stay on, even when the anti-dazzle separates the light beam.

Correct. The blue light stays on and the light will "steer" around the oncoming vehicle. If you pay close enough attention, you can see the light beam moving as the traffic gets closer. I have a personal video I can share if the one linked doesn't answer questions for people.

[starlights]

Thanks. I will keep an eye on the blue HB indicator. If my lights changed to low beams then likely anti dazzle wasn’t active. Is there a minimum speed threshold below which anti dazzle would disconnect and change to high beam/low beam mode?

[swainbmw]

Originally Posted by TurtleBoy

I would assume both but have only known people to use the auto-HB's.

I have laser lights active two things it works in automatic mode only and it’s all about the speed of the car for it to be active. You have to be going over 35 if not, and under that speed automatic headlights will take over and go from highbeam to Low beam and that will not activate the anti-dazzle feature, but it’s a game changer on back country roads specially how it lights up the sides of the road and allows you to see deer standing in the ditches and on the highways at night time pretty amazing I don’t think I could live without this feature. Now it’s a shame they discontinued it.