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      01-07-2014, 12:42 PM   #23
Frogman
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Drives: 2012 F30 328i
Join Date: Mar 2012
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Quote:
Originally Posted by ktula View Post
...

Are you experiencing the same thing as i do when driving in the city at less than 40 MPH, that the HBA would only turn both high beams on/off? In the official BMW video on glare-free HBA, it was a LED-based headlights and so perhaps they work a little differently than the Xenon-based headlights.
Yes, at low speeds, the HB's only turn on/off along with moving left/right based on steering wheel position. I didn't notice if there is a speed limit for this or not.

Once you are going faster, the glare free logic definitely kicks in.

As you indicate, the C_HBA_ENA_V_LO (60 kph / 37 mph) and C_HBA_ENA_V_HI (70 kph / 43 mph) seem to control this activation.

So, I guess that you have to be traveling over 43.5 mph before the glare free function is enabled, and once it's on, it's not turned off until the speed is below 37.3 mph.

The idea of these separate thresholds makes sense to me, but the values seem a bit high. I don't know if there are EU regulations that control theses values or not.

Have you tried tweaking these values?
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