TMHD 4 Posted February 18 Share Posted February 18 Hi Guys! I am wondering about automatic headlight sensor location, where is it? Anyone know? Automatic headlights are a nice feature, sure, but in my case, even during the bright day it's on. Few times lights switch themselves off to daylights during the cloudless day straight on roasting sun, but that's it. Normally headlights are on 99% of the time during the day. I know I am living in Dublin, but c'mon! 😄 So.. Location of that sensor? Maybe it's dirty AF and that's why it "thinks" it's constantly dark around me? Many thanks for all replies. Quote Link to post Share on other sites
NemesisUK 1,628 Posted February 18 Share Posted February 18 On the RC it's mounted on the dashboard top, left-hand side. A small dome, close to the windscreen. Quote Link to post Share on other sites
wharfhouse 221 Posted February 18 Share Posted February 18 4 hours ago, TMHD said: Hi Guys! I am wondering about automatic headlight sensor location, where is it? Anyone know? Automatic headlights are a nice feature, sure, but in my case, even during the bright day it's on. Few times lights switch themselves off to daylights during the cloudless day straight on roasting sun, but that's it. Normally headlights are on 99% of the time during the day. I know I am living in Dublin, but c'mon! 😄 So.. Location of that sensor? Maybe it's dirty AF and that's why it "thinks" it's constantly dark around me? Many thanks for all replies. The sensor is the small dome toward the left of the dash near the windscreen - cover it and lights will come on - there is also a sensitivity adjustment for the auto lights on / off in one of the setup menus - can be set to come on when lighter / darker by + and - 1 & 2. Quote Link to post Share on other sites
Brechin Slate 170 Posted February 18 Share Posted February 18 The sensitivity of your light setting can be altered using the settings function and steering wheel controls Quote Link to post Share on other sites
TMHD 4 Posted February 18 Author Share Posted February 18 Thank you for your replies. So... setting it to minus is a sensitivity how quick it reacts or lighter / darker? If I want them to turn on automatically only when it gets darker, then should I set it to -2? Quote Link to post Share on other sites
Brechin Slate 170 Posted February 18 Share Posted February 18 2 minutes ago, TMHD said: Thank you for your replies. So... setting it to minus is a sensitivity how quick it reacts or lighter / darker? If I want them to turn on automatically only when it gets darker, then should I set it to -2? Correct the - sign is less sensitive the + sign more sensitive 2 Quote Link to post Share on other sites
wharfhouse 221 Posted February 18 Share Posted February 18 1 minute ago, TMHD said: Thank you for your replies. So... setting it to minus is a sensitivity how quick it reacts or lighter / darker? If I want them to turn on automatically only when it gets darker, then should I set it to -2? I can't remember which way around it is at the moment - the manual doesn't really make it clear - you may need to experiment to see which way to go... I did change mine to 1 as I wanted them to come on a bit earlier (for example when raining) but can't remember which way but will try and remember to check later. Quote Link to post Share on other sites
TMHD 4 Posted February 18 Author Share Posted February 18 Just now, Brechin Slate said: Correct the - sign is less sensitive the + sign more sensitive So it has nothing to do with amount of light? Quote Link to post Share on other sites
TMHD 4 Posted February 18 Author Share Posted February 18 Just now, wharfhouse said: I can't remember which way around it is at the moment - the manual doesn't really make it clear - you may need to experiment to see which way to go... I did change mine to 1 as I wanted them to come on a bit earlier (for example when raining) but can't remember which way but will try and remember to check later. For me -2 or +2 they are mostly ON anyways xD Will try to clean this sensor or maybe it's a bit faulty... Quote Link to post Share on other sites
Brechin Slate 170 Posted February 18 Share Posted February 18 2 minutes ago, TMHD said: So it has nothing to do with amount of light? Yes, it has everything to do with the amount of light, you're altering the sensitivity of the sensor to the amount of light it's receiving Quote Link to post Share on other sites
TMHD 4 Posted February 18 Author Share Posted February 18 OK, Thank you all for your extremely quick response. I'll try to sort it out then and will be back with the results. Quote Link to post Share on other sites
Brechin Slate 170 Posted February 18 Share Posted February 18 Just to be sure, you're not confusing the headlights with the daytime running lights are you? Apologies if I'm insulting your intelligence 😊 Quote Link to post Share on other sites
wharfhouse 221 Posted February 18 Share Posted February 18 4 minutes ago, TMHD said: OK, Thank you all for your extremely quick response. I'll try to sort it out then and will be back with the results. If the sun is shining directly on the front of the car the auto lights can come on too - something in the sensor measures that too. But in normal daylight (no direct sun) they should be off. Quote Link to post Share on other sites
TMHD 4 Posted February 18 Author Share Posted February 18 No, they are set to auto. I am manually switching them to daytime running lights at daytime, as automatic... well.. automatic activates headlights for the most of the time. Only in crazy bright day with clear sky and tone of sunshine automatic works the proper way. For the normal days, not really... Quote Link to post Share on other sites
TMHD 4 Posted February 18 Author Share Posted February 18 3 minutes ago, wharfhouse said: If the sun is shining directly on the front of the car the auto lights can come on too - something in the sensor measures that too. But in normal daylight (no direct sun) they should be off. That's what I thought. Normal daytime, a bit cloudy and headlights are on in my case... That's a waste a bit. Quote Link to post Share on other sites
wharfhouse 221 Posted February 18 Share Posted February 18 19 minutes ago, TMHD said: That's what I thought. Normal daytime, a bit cloudy and headlights are on in my case... That's a waste a bit. I have just looked at mine and I have +1 sensitivity set as I like mine to come on sooner than default - so if you want them to be on only when it gets darker move sensitivity to -1 or -2 and see how that works. Quote Link to post Share on other sites
wharfhouse 221 Posted February 18 Share Posted February 18 If you are trying to experiment what I found when trying to set sensitivity was that once the lights turn on they take quite a long time to turn off again. This makes experimenting quite hard and I found the best way was to set a level and then see how it behaves while driving around for a day or two and then change and use again for a couple of days. That's how I ended up as +1 as a compromise - I wanted the lights to come on when it was dull and raining as on Lexus (and it seems other Japanese cars from what I have found) auto lights are independent of the windscreen wipers being on, unlike BMW (maybe other German cars?) where once the wipers come on the auto lights come on. However on +1 they aren't too sensitive unlike +2 when it seemed they were on for a significant amount of time in normal daylight. Quote Link to post Share on other sites
TMHD 4 Posted February 18 Author Share Posted February 18 Now everything is clear. Dealer put the sticker on the lower left corner of the windshield where dome is. Sticker is blocking all sunlight that it should get. Photo 1 - Lights on automatic, morning sun, but headlights on... Quote Link to post Share on other sites
TMHD 4 Posted February 19 Author Share Posted February 19 Sorry. It doesn't let me to upload photo, neither edit post above... Photo 2 - That's the place where sensor is that measure amount of light around. Apparently... Sticker is on it's way. Photo 3 - Close up Quote Link to post Share on other sites
wharfhouse 221 Posted February 19 Share Posted February 19 7 hours ago, TMHD said: Now everything is clear. Dealer put the sticker on the lower left corner of the windshield where dome is. Sticker is blocking all sunlight that it should get. Photo 1 - Lights on automatic, morning sun, but headlights on... Yes that's the light sensor for the auto headlights - whatever is on the windscreen will be blocking the light falling on it so keeping the lights on all the time. Quote Link to post Share on other sites
TMHD 4 Posted February 19 Author Share Posted February 19 So everything's clear now. Thank you all for help. SOLVED: If you have any sticker for tax/insurance disk that is blocking sunlight on that small, rounded dome on the left hand side under the windshield - remove it. 2 1 Quote Link to post Share on other sites
paulrnx 369 Posted February 19 Share Posted February 19 Glad you got it sorted! 👍 Quote Link to post Share on other sites
PaulWhitt20 227 Posted February 19 Share Posted February 19 One wonders about the intelligence of the dealer ! 1 Quote Link to post Share on other sites
Brechin Slate 170 Posted February 19 Share Posted February 19 10 hours ago, TMHD said: Sorry. It doesn't let me to upload photo, neither edit post above... Photo 2 - That's the place where sensor is that measure amount of light around. Apparently... Sticker is on it's way. Photo 3 - Close up That's a lot of stickers, are any of them necessary? Quote Link to post Share on other sites
TMHD 4 Posted February 19 Author Share Posted February 19 4 hours ago, Brechin Slate said: That's a lot of stickers, are any of them necessary? Well... Ireland... I've one more in the top left corner on the windshield too: 1 - Insurance disk 2 - Road Tax disk 3 - Technical Test disk 4 - Parking space permit disk 1 Quote Link to post Share on other sites
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