Member Since: 05 Jul 2017
Location: Newcastle-upon-Tyne
Posts: 39
High beam assist and spot lights
Do additional spot lights prevent the main beam switching on automatically using the high beam assist feature? In other words, does the light sensor detect the extra brightness of the spot light and mistake it for an oncoming vehicle and automatically switch off the main beam?
Thinking of adding extra spot lights but don't want to loose the function of high beam assist.
I didn't have in om my D4 but on my FFRR it works ok with a rather potent LED-bar up front. At times reflexion from traffic signs of bright colour may trigger to off, but not annoyingly often. It properly reacts to surrounding traffic. The only case where it doesn't work well is when there is a rail barrier that somewhat hides the oncoming traffic, then it doesn't shut off high beam by itself.
So I would venture to guess that it would work similarly for a D4.FFRR 2015 SDV8
D4 2011 - Now gone (Sep -23)
7th Dec 2023 8:24 am
NC500
Member Since: 18 Sep 2017
Location: On the NC500
Posts: 498
I have two Lazer Triple R on my D4 and since fitting, I have never used auto main beam. The reflection from signs means the lights are constantly on and off - a real pain
7th Dec 2023 8:40 am
Oxford-boy
Member Since: 07 Sep 2015
Location: Oxford
Posts: 1065
As above... and to answer your question, no you won't lose the on off functionality but the glare bounce back from just about anything will have all your lights switching on and off frequently.
Of course you will have your lazers switched so you can use them with high beam or alone...
I use my lazers when i really need them super rural or field sports..Jim
2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone
7th Dec 2023 3:54 pm
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4405
The trouble with auto high beam (on any car) is that they don't dip until the sensor sees the oncoming headlamps fully. As a driver you should have already dipped seeing the light from the oncoming car. Consequently, the oncoming driver always gets an eye full of main beam before it deems necessary to dip. Awful idea, leading to lazy driving (in my personal opinion).Richard
D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.
Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone
7th Dec 2023 6:06 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8121
Surely that’s the purpose of them to assist with dipping when the driver has neglected to do, which we have all done at sometime, not to replace of manual dip, otherwise it would be called auto dip not high beam assist.It can when others can't,
It will when others won't,
It goes where others don't.
7th Dec 2023 6:28 pm
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4405
I think in general, at least from my recent experience of driving in very dark rural Norfolk, drivers who have auto high beam totally rely on it and don't use the dip. It's the same type who rely on the car to decide when to put any lights on, and drive around in the fog without any rear lights (DLR on front)Richard
D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.
Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone
7th Dec 2023 6:33 pm
autobiorob
Member Since: 11 Jun 2014
Location: Peterborough
Posts: 158
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