3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
its probably not an igniter or ballast because there doing it at the same time, they should have seperate igniter's and ballast in the headlight assemblies, not sure what the problem is but throwing parts at it gets expensive! check the connections at the switch...check if it happens when the switch is set to auto and when its set to manual
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