Self-leveling just means that the lights will correct for issues like a heavy trunk, which would normally cause the lights to be aimed higher than intended. But those knobs let you adjust the "baseline" height.
I've seen other forum members say they think the M3's lights are aimed too low even compared to normal 3ers. Two full turns in the up direction seems to satisfy most of those people. I personally have no issue with it but there you go. Also note that the driver's side headlight is SUPPOSED to be lower than the passenger's to make it easier on oncoming traffic, so don't try to make them even; that's by design.
11 M3 E92 Le Mans | Black Nov w/ Alum | 6MT | Premium 2 | Convenience | 19" | EDC | Prem Audio | Moonroof | BMW Apps | Vorshlag Adjustable Camber Plates | StopTech ST-60 380mm BBK | Castrol SRF Fluid | ModMyNav.com rear camera | OEM Euro Sunglasses Holder
Last edited by jphughan; 10-20-2011 at 10:47 PM.