Lt. headlight low beam wont work after replacing the bulb.

I assume it didn't work before you changed the bulb either. You'll have to check for voltage at the bulb socket when the low beam headlights are turned on. If there is none you'll have to trace the wire back to where it splits from the right low beam headlight. If there is voltage there you have a problem with the new bulb.

INSTALLATION GUIDE:

1. BMW E38 99-01 HID TYPE 7 Series 1PC Halo Amber Projector Headlights
2. Parts Identification:
3. Projector Headlight
4. Halo & L.E.D.
5. Bottom of the Headlight:
6. Ballast Bracket, Halo Wires(red/black)
7. Turn Signal Adaptor
8. TOOLS REQUIRE
9. 10mm - 8mm socket
10. Philip Screwdriver
11. Crimper/Pliers
12. For more information about how to install your vehicle, come visit our youtube page on
13. http://www.youtube.com/spyderauto
14. Remove the facotry headlight from the BMW. First remove the front panel cover below the headlight to access the bottom screw of the headlight housing. There is also two screws on the top of the housing.
15. Once you have remove the headlight, turn the headlight around and remove the bracket that holds the Ballast. Then remove the ballast using a philip screwdriver.
16. Unplug the wire from the ballast, and then remove the Xenon Plug from the housing. Put the Ballast aside.
17. Carefully remove the D2S Xenon Bulb from the factory housing. Once you have remove the bulb, transfer the bulb to the Spyder headlights.
18. Remove the bracket from the Spyder Headlight, and then install the ballast on the housing like the original. Once you have put the ballast on, put the bracket back on.
19. Remove the Panel Cover bracket from the original headlight to the new Spyder Headlights as shown here.
20. STEP:
21. Install the Spyder turn signal socket if the orignal does not fit, unplug the factory plug from the harness and plug the new one on.
22. Install the Spyder Headlight back on to the vehicle. Plug the Harness back on, the halo/L.E.D. Wires is connect to the Parking lights. These wires are optional to your vehicle, you do not have to wire them together.
23. Factory Xenon Headlight
24. Spyder Projector Headlight using Factory Xenon Light
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26. PLS VOTE
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