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Home > Technical > AFS - Adaptive Headlights |
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Lookers Park Royal Member Since: 11 Dec 2007 Location: London Posts: 607 |
Yes they should self-set (the twitching). We've not got one on the fleet at the moment to check but IIRC it will only do it once and IIRC it is not necessarily when the lights are switched on but when the ignition is switched on. i.e. If you switch on/off (lights or ignition) then it may not do it each time, however it certainly should if you start the engine from a prolonged period with the lights on.
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13th Nov 2010 10:56 am |
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athelstan Member Since: 03 Nov 2009 Location: Reality Posts: 2658 |
James
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13th Nov 2010 11:09 am |
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athelstan Member Since: 03 Nov 2009 Location: Reality Posts: 2658 |
James
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13th Nov 2010 12:03 pm |
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athelstan Member Since: 03 Nov 2009 Location: Reality Posts: 2658 |
James
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14th Nov 2010 12:57 pm |
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Dave Member Since: 04 Jul 2007 Location: Somewhere Near You Posts: 2666 |
Hmmmm,
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14th Nov 2010 4:54 pm |
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ad210358 Member Since: 12 Oct 2008 Location: Here and There Posts: 7464 |
One of my lads had a Focus with adaptive headlights, on switching the ignition the eyeball would rise up and down to find its position. |
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14th Nov 2010 5:09 pm |
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athelstan Member Since: 03 Nov 2009 Location: Reality Posts: 2658 |
Dave I've tried both methods of switching the lights on, as James suggested with engine running first, and without engine running - same result - headlights provide illumination but do not check their coordinates first i.e. twitch. (as they always did until last October). I'll check tomorrow the internal lever as you referred to above being jammed tomorrow. Thanks for your feedback - appreciated. |
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14th Nov 2010 7:27 pm |
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athelstan Member Since: 03 Nov 2009 Location: Reality Posts: 2658 |
ad210358 Yes that's exactly what the FL2 eyeballs used to do - compass coordination twitching - up_down_left-right. |
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14th Nov 2010 7:30 pm |
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Lookers Park Royal Member Since: 11 Dec 2007 Location: London Posts: 607 |
I hope I'm not wrong . As mentioned IIRC they do self check/level. Checked a RR today and it twitches.
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14th Nov 2010 7:32 pm |
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Dave Member Since: 04 Jul 2007 Location: Somewhere Near You Posts: 2666 |
Have someone stand in front of the car to see what happens when you first turn the ignition on without starting the engine and without the lights on.
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14th Nov 2010 7:35 pm |
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athelstan Member Since: 03 Nov 2009 Location: Reality Posts: 2658 |
Yes - testing routine has always been a two person job - one in and one in front. As I said - engine running, engine off, the results the same - no twitching. The mystery deepens. |
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14th Nov 2010 7:41 pm |
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athelstan Member Since: 03 Nov 2009 Location: Reality Posts: 2658 |
Thanks for checking with RR, however it has different adaptive headlamp system altogether. FL2 AFS is the runt of the technical litter - yesterday's system...... FL2 tracking with steering wheel movement is hardly perceptible when the AFS is working properly, at least on her ladyship's. Here in CH it is a GBP1,150 extra. If only it gave 1150% extra night vision performance. New model Jaguar XJ adaptive headlight is superb - really lights up the side of the road and tracks very visibly indeed with steering wheel movement. How do I know - had one on a week's test - I may treat myself to a birthday present as its fast approaching. But if I did I'm not inclined to by it from our Jaguar/LR dealer following last Thursday's performance. Oh and if you are wrong re FL2's AFS twitching - no problem - at least you've offered suggestions which is more than the LR dealer here has so far |
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14th Nov 2010 7:57 pm |
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redlabel Member Since: 28 Feb 2010 Location: Tromsoe Posts: 396 |
Mine twitch so yes they should.
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14th Nov 2010 8:23 pm |
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athelstan Member Since: 03 Nov 2009 Location: Reality Posts: 2658 |
redlabel Thanks for the confirmation re your AFS. True - just turning the steering wheel on a parked FL2 does not demonstrate the adaptive facility. However, just parking the FL2 against a wall can lead to a false test result. Caution should be exercised. Unless you can actual see the headlight unit physically twitch, the "dance" you see reflected on the wall may well be only the initial ignition of the xenon gas in the unit, and not the secondary action of orientation of the units coordinates. For a 100% reliable result use two people during the text - one in and one in front, or, park in front of a large mirror window. |
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15th Nov 2010 7:31 am |
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