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Weak Headlights - Contact Volvo

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Old Sep 14th, 2018, 15:53   #281
LizardOfBodom
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Originally Posted by T5R92011 View Post
Did you ever 'get used' to the blue haze from the new projector cut off? I believe this is because these units have clear lenses so the light along the shutter edge has zero defusion.

I would be tempted to pull the old frosted lense from the original unit and put it into the new one if that haze got a bit too much. They shoud be interchangable as both 3" diameter.

However, they might be a different shape so not sure what effect that would have on beam focus etc.
No, I havent gotten used to it either, but I call it "rainbow effect" Although, it can be minimised after regulation, did you know that?

When you mount the projectors, do yourself a test jig similar to mine and see how the shutter screw fiddling can affect the cutoff



I noticed that you will never get it 100% as it will be more "violet haze" either close or far away, but I was able to minimise it as much as possible. Have a go yourself and experiment a bit.

btw - you may never get it perfect anyway as I also noticed that its something to do with H7 HID irregularity. I think its just "as good as it gets" sometimes. Compare the D2S cutoff for example (same projectors but in D2S flavour with OEM bulb)



I totally get you with your "frosted lens" idea, as I am not fan of this laser-sharp cutoff myself. Its like black/white and its not good for your eyes nor for dark driving, but its the aftermarket projectors' issue. OEM ones are designed better and throw more gentle cutoff line. Notice that even brand new cars with LEDs have a bit "hazy" cutoffs.
On the other hand, because of that you are less likely to blind oncoming traffic, as fresnel lenes with those projectors wont work well so I would advise against that action.
but if you still gonna try, please pic & post as I am interested in results anyway
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Old Nov 12th, 2018, 09:53   #282
Pioneer12
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Default Dimmed Headlights

I have jumped to this last page 39 after starting at p1. If anyone has solved the problem in between tell me where please.
My problem is a fault of failure not of design. We have had the car since new 1999 Volvo S40. The headlights worked perfectly well on main & dipped for 17 years. All of a sudden the dipped beam dimmed. The blue main beam warning light lit dimly on dipped beam. I seem to remember reading somewhere that they have a central electronic control unit to do with day light running lights which can be a problem or perhaps some resistor. In the old days it was just a bad earth on my fathers 1969 Ford Capri when it was a week old! Any ideas?
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Old Nov 12th, 2018, 12:16   #283
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I have jumped to this last page 39 after starting at p1. If anyone has solved the problem in between tell me where please.
My problem is a fault of failure not of design. We have had the car since new 1999 Volvo S40. The headlights worked perfectly well on main & dipped for 17 years. All of a sudden the dipped beam dimmed. The blue main beam warning light lit dimly on dipped beam. I seem to remember reading somewhere that they have a central electronic control unit to do with day light running lights which can be a problem or perhaps some resistor. In the old days it was just a bad earth on my fathers 1969 Ford Capri when it was a week old! Any ideas?
Wrong car, you have 1st gen S40 with much simpler lamps and control units so any advices here wont really apply to yours.
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