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New Code: Adjust the Sensitivity of the Automatic Headlights

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53K views 51 replies 23 participants last post by  julius02  
J
#1 · (Edited)
Many of you have complained that the Automatic Headlamp Control seems too sensitive. Many times my headlights are on as late as 9 or 10 AM, even when the sky is bright a clear.

You can adjust the sensitivity of the control by changing a few codes. This process can be a bit complex (there seems to be other controls in place) so I suggest the following changes:

JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> unempfindlich (default is empfindlich)

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ unempfindlich (default is empfindlich)

Just this. Not not mess with the wertes.

After many tries, it seems that the default for ***8220;non-sensitive***8221; (unempfindlich; werte=01) works for me (ignore the Japan/China comment in the setting). The default setting for North America (and perhaps other locations) is ***8220;sensitive***8221; (empfindlich) or werte=07, which seems to fast in turning the lights, even in fairly bright conditions. The ***8220;normal***8221; setting is still a bit too fast (in my opinion) turning the headlights on.

The settings range from (with the default werte value next to it): non-sensitive (01), normal (03), sensitive (07) and very sensitive (0B or 11 in decimal). The wertes range from 0 to 15 (0F). That said, adjusting the wertes is not a straight forward affair. For example 00 does not seem to make it less sensitive than 01 (at least in my hands).

The suggested setting works for me, but others can tested by you. Please report successful changes so we can all learn more about these settings.

Notes-

1) It seems this change sometimes is instantaneous but in other occasions it takes a bit of time to ***8220;set***8221;. Give it at least a day after the code change to assess its effect.

2) The sensor normally takes about a minute or two to respond to a change in brightness.

3) When you are indoors (a garage or a tunnel for example), the lights always come on regardless of brightness. This is controlled by another independent setting not affected by this change.

JEG23
 
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J
#5 · (Edited)
tankren,

That is not the case. There is a dramatic difference between the default (sensitive) and non-sensitive (unempfindlich). The specific werte changes are complex as I mentioned. That is why I recommend just the changes above. Try it and you will see.

JEG23
 
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G
#8 ·
canadian 01/2011 535ix

The default werte values I have are different and still finding them too sensitive:

JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> empfindlich/werte=02

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ -> empfindlich/werte=02

Choices for both are:

normal/werte=01
empfindlich/werte=02
unempfindlich/werte=03
sehr_empfindlich/werte=04

I'll try unempfindlich/werte=03 and see how it goes before changing its werte to 01
 
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J
#9 ·
gicamuci,

As I mentioned, the werte values are complex. Just change from empfindlich to unempfindlich and do not mess with the werte values for now. That alone will have a dramatic impact on the sensitivity of the headlight control.

I have experimented with this for weeks. If you change in RLS_DEF_FLC_SCHWELLWERT_SATZ or RLS_FLC_SCHWELLWERT_SATZ the setting and also the werte, you defeat the setting. The wertes are defined by other settings below those.

I did not want to make this over complicated and confuse everybody. As I said just change:

JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> unempfindlich (default is empfindlich)

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ unempfindlich (default is empfindlich)

and see if you are satisfied. I think you will.

JEG23
 
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J
#29 ·
NicNoh,

For me, the change as described in the first posting works great. The lights are not on in bright days and they come on at the right moment when it becomes dark or it is very cloudy.

That said, all of this is a matter of personal preference. That is the beauty of coding. You can try "unempfindlich" and if that is not sensitive enough, you can then try "normal" and that may work better for you.

As for the dashboard lights, how they turn on is a complex process in this car. The dashboard lights (at least in the F10) change from bright white during day time to orange at night. This process can be adjusted by experimenting with the code I posted here:

http://www.bimmerfest.com/forums/showthread.php?t=662851&highlight=

In my case, I prefer the bright white dashboard all the time, so that is the setting I describe there (FF). Other hexadecimal values will allow the dashboard lights to change from white to orange at different environmental light levels.

JEG23
 
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J
#31 ·
NicNoh,

Our cars (at least in the US) come by default in the "sehr_empfindlich" (very sensitive) setting, which is terrible as far as I am concerned. Try unempfindlish and if that is not sensitive enough (I see you are in Sweden where there are probably pretty short days for good part of the year), try normal. At least for the south of the US, normal was still too sensitive for me.

You should learn to code :)

It is more fun to do it yourself.:thumbup:

JEG23
 
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N
#32 · (Edited)
JEG23,

As I understand it, the setting is the same here in Sweden also. As for headlight coming on in the evening or in overcast weather, I am generally fine with the sensitivity, but what really annoys me is when it comes on in bright sunlight, especially when the sun is standing low. But I will ask them to reset to unempfindlich and see how it works. My only concern is that the lights will not come on when it starts to get dark.

Does anyone else have experience with changing this setting? It would be fun to hear how others have adjusted this setting and which setting serves you best.

BR,

NicNoh
 
#33 ·
The "official" BMW way to change the light control sensitivity is to use K-Words FLCN and FLCS:

I have not tested them though, and the underlying FDL Changes may be the same JBBF codes JEG23 posted.
 
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D
#38 ·
Sensitivity settings also possible for high beam?

Might be a little bit "off topic", but maybe, someone could help me anyway:

Is there also a setting to allow adjustment of sensitivity for the automatic high beam control?
My car's (F20) assistant for switching high beams on/off doesn't work very good and often recognizes oncoming traffic or traffic driving ahead too late, so that I have to switch off high beams manually in most of the times.

Thanks for your ideas!
:)
 
P
#45 ·
abcf4e said:
JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> unempfindlich (default is empfindlich)

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ unempfindlich (default is empfindlich)

I only found the first entry in Fem Body in my F20. Where is the other one located?
Click to expand...
The same in my F20.
Only RLS_DEF_FLC_SCHWELLWERT_SATZ located in FEM_BODY module.

Is it enough to change only this one to unempfindlich (default is nomal)...?
 
T
#40 ·
FWIW... applied this coding on a '14 F06 (using F10 data set).

For these 2 entries noted earlier:

JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> unempfindlich (default is empfindlich)
JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ unempfindlich (default is empfindlich)

My default was actually "normal". The choices I had were normal, unempfindlich, empfindlich, and sehr_empfindlich

I changed the two from "normal" to "unempfindlich". Will report back if it does not seem to have any effect.
 
#42 ·
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K
#43 ·
Hi Everyone,

New to the forums as I bought a 2012 X5 diesel last week...and have a question about the coding for the Auto headlight sensitivity setting. Some background before my question.

I'm having the issue where my headlights (low beams) & the orange instrument panel lighting are ON during bright sunny days. When I first got the car, the Auto setting was working as expected but it all changed this past weekend, which was when I had the OEM hitch installed. After the installation and coding to recognize the hitch all of my iDrive settings were reset.

Could this have caused the unempfindlich / empfindlich settings to have been changed and thus causing my Auto headlight setting issue?

I know this question isn't directly related to changing the settings but this was the best thread I could think of to post the question.

Thanks!
 
J
#44 ·
koolio said:
Hi Everyone,

New to the forums as I bought a 2012 X5 diesel last week...and have a question about the coding for the Auto headlight sensitivity setting. Some background before my question.

I'm having the issue where my headlights (low beams) & the orange instrument panel lighting are ON during bright sunny days. When I first got the car, the Auto setting was working as expected but it all changed this past weekend, which was when I had the OEM hitch installed. After the installation and coding to recognize the hitch all of my iDrive settings were reset.

Could this have caused the unempfindlich / empfindlich settings to have been changed and thus causing my Auto headlight setting issue?

I know this question isn't directly related to changing the settings but this was the best thread I could think of to post the question.

Thanks!
Click to expand...
I have the same problem without the hitch reset. I haven't had time to take it to the dealer and they will never find a problem anyway. I didn't realize it might be a cod able option. I will see what comes up in this thread(jack).

Sent from BimmerApp mobile app
 
P
#48 · (Edited)
Does anyone know how to change the timer responsible for the turn off headlights after leavig tunnel, garage, etc. ?
In my F10, when I exit the tunnel, headlights are on for about 2-3 min. before switching to DRL (even the day is sunny).

P.S.
I changed JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ and RLS_FLC_SCHWELLWERT_SATZ to "unempfindlich" and after that my headlights are less sensitive and are turning on later.
But these settings are not connected to the timer mentioned above (before the change, headlights switched to DRL the same time 2-3 min. after leaving the tunnel which means that it is probably controlled by another setting).
 
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