
Originally Posted by
outasight
Hi guys, long time no speak on here!
I have a non-HID 2011 D4 SE which I fitted a Super Cheap Auto H7 HID kit to the low beams last year. There had been zero problems with anything until one light started turning off at random and then a week later the other one started!
The lights would always come back on immediately with a simple off/on of the switch.
I strongly suspect the bulbs as minor bumps seemed to trigger the faults. Super Cheap swapped the system over under warranty & what I noticed was whiter/brighter light output with the replacement setup in. Again, with this & the cloudy discolouration of the bulbs - I suspect the bulbs them selves.
A few observations of mine relating to comments throughout here are ...
These Super Cheap ones also "flash" to fire up(start), and I also understand this is just the requirement to "ignite" the gas.(ie. they will ALL do this).
I previously had a bi-zenon Subaru Liberty where they got to full brightness quicker, and I think the better quality units will, but it's a small sacrifice for low beam units. These Super Cheap ones can be slow when very cold.
Colour temperature is a product of a light's wavelength, and lower temperature(more towards yellow)= shorter wavelength which = better penetration of air/atmosphere. This is better for distance light & vision. Get 4300k which is closest to daylight. I got a 35W kit which I find 100% adequate for low beam, a 55W may be too dazzling for other cars AND you!!!
The Subaru's washers worked the same as my ones do & always have - a wash every so many windscreen washes, and that must meet ADRs. I also have to assume it's to do with diffraction through a dirty headlight potentially causing dangerous glare.
Good luck with all the other experimenting guys!
Les.
I'd be looking at the earth and or connections for the HIDs to the old connector, I had this EXACT issue on my old D2, turned out to be a bad(loose) earth.
Baz.
Cheers Baz.
2011 Discovery 4 SE 2.7L
1990 Perentie FFR EX Aust Army
1967 Series IIa 109 (Farm Truck)
2007 BMW R1200GS
1979 BMW R80/7
1983 BMW R100TIC Ex ACT Police
1994 Yamaha XT225 Serow
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