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BMW 3-Series (E90 E92) Forum
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High beam assist
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03-17-2011, 05:41 AM | #2 |
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High beam assistant is automatic dipping and switching on main beam. I have it and love it, you never need to think about dipping the lights. Others I have heard do not like it but for me its a very cheap great convenience factor.
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03-18-2011, 03:50 AM | #3 |
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03-18-2011, 03:58 AM | #4 |
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I have it too, it uses an additional longer range light sensor behind the mirror to see oncoming lights and put on high beam or dip accordingly. You use the high beam stalk to put it on and you get a little 'auto' symbol on the dash. You can disable it if you want.
It's ok for unlit dual carriageways etc, but for typical British country roads and minor A and B roads its a liability IMO. I find it has some dangerous issues: 1. It is a bit slow to dip and often dazzles oncoming cars who then flash you or don't dip either. Only a fraction slow, but that's all it takes. 2. It is a bit slow to restore high beam and leaves you unable to see after a car has passed for half a second or so. 3. It won't allow high beam below 30mph as it 'assumes' you must be in a built up area, so when you slow for a tight bend in a country lane or A road the damn thing dips your lights just when you need them most! 4. It often mistakes reflective road signs ahead for oncoming cars and dips your lights again just when you need them. It can never be as good as a human because it has to wait until it sees the oncoming lights, whereas you can see them way off, reflected on telephone wires or hedgerows / barriers etc. Also when you pass a car going the other way you would put high beam on at the exact time you pass the car, not wait a half second or so first. Last edited by doughboy; 03-18-2011 at 04:10 AM.. |
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03-18-2011, 04:08 AM | #5 | |
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Also if you try to manually turn off the the high beam and the sensor decides its going to turn off at the same time it causes you to flash the oncoming driver. Along with the over zealous auto windscreen wipers I leave it turned off. I don't tend to use high beam at all so it's no big loss. |
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03-18-2011, 04:14 AM | #6 | |
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When I use it I end up with my fingers hovering over the dip stalk and thinking "hurry up, hurry up" before over riding it as its too slow! |
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