Fix your BMW HID headlights
If you have a problem with your BMW HID lights and you have tested power to the headlight igniter (also called an HID ballast), the problem could be either the bulb or the igniter/ballast. The parts from BMW cost a fortune. But Standard Motor parts now sells aftermarket ballasts. A ballast puts out very high voltage, so don’t try testing the old unit unless you know exactly what you’re doing.
The R66004 unit for BMW HID lights fits the following vehicles:
©, 2015 Rick MuscoplatPosted on by Rick Muscoplat