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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > F30 DIYs and Coding Discussions > Drl light time
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      09-15-2020, 09:55 AM   #1
fredde85
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Drl light time

Hi. When i have the light switch to automatic the drl lights is on in the day and when i drive in a tunnel the lights goes to low beam and when i drive out from tunnel it goes back to drl in 2 minutes. How do i change this value. I want go back to drl faster. Lets say 30 sek
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      09-15-2020, 01:08 PM   #2
Ibo24
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You need to change the RLS sensitivity light setting.

You can find it in FEM_BODY, should be on the bottom.
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      09-15-2020, 04:05 PM   #3
atzebmw
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The 2 minutes cannot be changed or no one ever has found the values to change it.
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      09-15-2020, 09:32 PM   #4
smrtypants44
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You also want to be careful cause you don't want your lights to turn off during the dark when you drive under a street light
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      09-16-2020, 03:01 AM   #5
fredde85
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What is the difference between:
RLS_DEF_FLC_SCHWELLWERT_SATZ
And
RLS_FLC_SCHWELLWERT_SATZ?
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      09-17-2020, 12:25 AM   #6
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If you have Xenon headlight, this longer switch back to DRL is intentional. There is a cycle that xenon bulb should go through if it is ON for some time.

You can see it that sometimes when you drive under the overpass (extremely short tunel, parking garage entrance) and it triggers the low beam for couple of seconds, then it will switch back to DRL pretty fast. But if you've driven a bit longer in the tunel, then it will keep the low beam for a while until it finishes pre-defined xenon trigger cycle.
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