I'm considering this as I've not found any halogen bulbs which come close to my HID's. I'm aware of the potential shortfall's, but am wondering if anyone has actually done it and able to offer up their experiences?
The biggest issue with having hids as main beams is that they don't tend to ignite as quickly as conventional bulbs. The lives of the bulbs will be reduced also. I know you said you were aware of the pitfalls but thought I'd mention it anyway
I tried it in my old MG ZS and didn't like it. They were so bright that the light reflecting off road signs was pretty dazzling! The time they took to warm up wasn't too bad from what I remember (but it was years ago I did this). I only tried them once then swapped them back to halogens. They may be different in an A4 but I didn't like them in the ZS.
I did it and you helped!
Help with Fitting HIDs
They're fine. They take a few seconds to get to full brightness and I don't use them very often but it's nice to have them since the OEM filament bulbs were so poor.
Audi S4 Avant (B6, 2004) in Goodwood Green.
I have them in high beam and they are great no issues at all
As has been said they do take a few seconds to warm up
Now I'm on my pc I would just like to point out a few things
go for 4300/4700k as close to white as possible mine are 6000k and are way too blue and because they are bright you get a bit of light bounce back which can make you strain your eyes more and it can make you more tired!!
saying that though I have never had a problem I just thought I would point it out
oh and they are really really bright you can see for miles mine even drown out oncoming cars light round corners and can catch you out when they appear!!
you do get a bit of glare back but its nothing to write home about
and yeah they do take a few seconds to warm up too
One of my concerns was the time it would take for the HID bulb to warm up to it's maximum brightness, it's probably 2-3 seconds before full brightness, but useable brightness is virtually instant. Not the best video, but you get the idea...
... and this is the headlight flash, from cold. The instant light is blinding, as per HID's when they flash and then it drops off, but it's certainly a very noticeable flash!
They look good James, just when i was loosing interest in the car there's another mod i can do ;-)
A4 AVANT 1.9TDI 130 SPORT:
18" RS6'S//TWIN EXHAUST//ALLARD EGR DELETE//AERO WIPERS//B7 KEYS & ENGINE COVERS//BLACK OPTICS //FRONT & REAR S-LINE BUMPERS//TAILGATE SPOILER//S4 HEADLIGHTS,GRILLS & DOOR BLADES//RS4 RARB & PEDALS//FRONT,REAR & FOOTWELL AMBIENT LIGHTING//PUDDLE LIGHTS//FAN JETS//MEDIA SYSTEM//T.V//7" HEADREST MONITORS//REAR BLINDS//REVERSE CAMERA// CRUISE & DIS
Loving the joey mod headlights too, I've got a spare set of knackered ones in my loft from when the wide had a front end and wrecked them. They're begging to be taken apart for testing purposes to hone my technique.