hi... I had to interrupt this post but I'll try to fill in some stuff later....
a long time ago (well, not that long) I used to sell lightbulbs and ballasts, including HID sytems, but nothing for automotive.
Lighting on the E30 is my one real pet-peeve about the car... I'm on my 3rd set of headlights, and in about a week, heading to my fourth. This is in less than a year!
So, take a look at the following and with sheepdogs help we can turn this thread into a real reference:
the information below is incomplete!
Original Equipment
type manufacturer features bulb notes
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sealed beam unknown none sealed 5.25"lamp stock for US 318is
US ellips Hella DOT 9006 low/9005 high can take HIR lamps
Euro ellips Bosch smiley & citylight H1 low / H1 high steel projectors
Euro ellips Hella smiley & citylight H1 low / H1 high plastic projectors
Smoked Euro ellips Hella smiley & citylight H1 low / H1 high smoked reflectors
Euro ellips unknown citylight H1 low / H1 high no smiley
known facts!
The low beams on the ellipsoidal fixtures are a two-piece design, with a projector in the rear, a cut-off plate (more later), and a reflector in the front to shape the light output and prevent excess glare from oncoming traffic.
The different ellipsoidal fixtures are physically interchangable with their respective mounting buckets; you cannot put ellipsoidal fixtures in a sealed beam mounting bucket; the wiring plugs vary as follows (more later)
upgrades from sealed beams
(keep the sealed beam mounting buckets)
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sealed beam to hella h4 conversion fixtures
sealed beam to cibie e-code conversion fixtures
putting new headlight assemblies in
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any of the above
upgrading to different bulbs
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for euro ellips:
osram silverstar h1
100-watt halogen bulbs
for US ellips:
HIR 9012 / 9011 bulbs
upgrading to HID
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mcculloch
prolumen
kaixen
E46 single xenon retrofit
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