Det. Mickylaren

When you switch to high beams, one of two things happens.

Ex 1: BMW 3-series and etc. : Shutter opens low beam bulb up so more light is released.

Ex 2: Volvo S40 and etc.: Shutter opens low beam bulb up so more light is released and halogen high beam bulb lights up.

neoprufrok

When you turn on the high beams (not flashing them) two things happen: 1- halogen hb bulb turns on in the hb housing 2- the xenon projector lens/bulb opens the shutter removnig the lb cutoff. Hence, you get much more light output from the bixenons than regular due to the extra xenon high beam output.

There is a shutter between the xenon bulb and projector lens that flips up and down depending on if you want high or low beam.

A4Jared

Did you ask for S4 E-codes or is that just what they gave you?

Turbo_Whip!

no i ordered the s4 ecodes, their a lot more than normal a4 ecodes

Det. Mickylaren

You paid more for the black? You like it that much?

Det. Mickylaren

Doesn't the shutter handle the auto leveling as opposed to the entire housing moving?

neoprufrok

It doesn't seem to autolevel. I'm not sure why. The shutter is the high beam though, as Saturnine (John) and I have taken apart his housing and figured out how it works. Plus, if you stand next to the headlight when you switch on and off the high beams, you here the distinctive "clunk" of the shutter going up and down.

Det. Mickylaren

LOL...yeah, it's pretty loud