Drivers side low/high beam out.

[rtl5009]

Ballast?

[jygesq]

Bulb?

[JohnEnglish]

My driver's side light exploded followed by the passanger's side 2 months later. Both were replaced under warranty.

[SwankP3RF3ct10n]

I believe the high/low is controlled by a mechanical movement of a flap or shutter that angles the light output more and lets more through. The bulb has one output level. If it's cold where you live and you had some condensation in the headlight housing, it's possible the mechanical portion of this froze in place or something. That's a reach, but something to consider... maybe.

[whiped]

I believe the high/low is controlled by a mechanical movement of a flap or shutter that angles the light output more and lets more through. The bulb has one output level. If it's cold where you live and you had some condensation in the headlight housing, it's possible the mechanical portion of this froze in place or something. That's a reach, but something to consider... maybe.

Swank is correct. They use the same bulb and it is a flap the controls high/low.

My guess would be bulb.

Easiest way to tell is to swap them and see if the other side goes out. This will tell you if it is the ballasts or the bulb. Both are easily serviceable.

[SwankP3RF3ct10n]

Why would it be the bulb? I understood this subject line to mean the flipping from low to high beam not working. If it was just completely out, most people would go after the bulb as the failure and not the ballast as he asked in the OP, HID or not, bulb first and a swap like you said would be a good diag step to take for that. But I think he might have meant the headlight doesn't flip to high beam or he would have said headlight completely out. Who the fuck knows now... lol.

[whiped]

Why would it be the bulb? I understood this subject line to mean the flipping from low to high beam not working. If it was just completely out, most people would go after the bulb as the failure and not the ballast as he asked in the OP, HID or not, bulb first and a swap like you said would be a good diag step to take for that. But I think he might have meant the headlight doesn't flip to high beam or he would have said headlight completely out. Who the fuck knows now... lol.

Some clarification would be awesome OP.

I thought high/low beam out meant both are out -> Bulb is out.

If the low beam works but the high does not the little gate is not moving. I'm not sure you can service these without pulling the light apart.

[rtl5009]

Both are out. I just ordered a new pair of HID bulbs from ecs. 6000k. Will report back.

[cspcrx]

Your car is mad at you because you move from the warmth of the dessert to some place cold! Lol

Hope the bulb fixes it.

[DGVR6]

Shit rob, I have a set of used oem bulbs over here at the garage lol.. I would've just sent them over.

[rtl5009]

Shit rob, I have a set of used oem bulbs over here at the garage lol.. I would've just sent them over.

I see the s6 is ripping low 11's stage 1. That is badass!

[DGVR6]

I see the s6 is ripping low 11's stage 1. That is badass!

I see 10s on stock turbos one day. Poor mans RS

[rtl5009]

Installed Ziza 6k bulbs from ecs. Will report back after dark. Install was pretty easy.

[ggg20t]

Installed Ziza 6k bulbs from ecs. Will report back after dark. Install was pretty easy.

gay

[pkny]

Wait..................... OP said easy. The bumper doesn't have to removed for a bulb change .
So much learning to do.

[Sukks2bu]

Subd

[14S4GWM]

Wait..................... OP said easy. The bumper doesn't have to removed for a bulb change .
So much learning to do.

Who said the bumper needed removed?

[pkny]

no one.
I recently came from a B7 avant to a B8 Avant and B8 S4. So i assumed the bumpers needed to be removed for a headlight bulb change.

[rtl5009]

So one ended up way more blue then the other. I contacted ecs and they are sending me a new pair.