A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D2 > D2 - Lights

D2 - Lights Headlights, xenons, foglights. Everything outside the car that glows

Reply
 
Thread Tools Display Modes
  #1  
Old 8th September 2016, 07:24 AM
Mossyboy1978 Mossyboy1978 is offline
Member
 
Join Date: Aug 2016
Posts: 50
Default Lights a bit yellow - bulb options?

Hi all

Looking at my headlights yesterday it looked like the dipped beam was a bit yellow. Prof Peach (who owned the car previously) thinks they are probably xenons but the xenons on cars i have previously owned are a lot brighter and whiter (almost blueish) when on.

Can someone please confirm that these are in fact xenons and if so, whether they should be providing a different hue?

If so, I'm going do a bulb change so would love some recommendations for suitable bulbs that won't deliver error codes and offer a better quality of light.

Some photos attached to help determine the situation.

Thanks

Mossy
Attached Thumbnails
Click image for larger version

Name:	IMG_4119.JPG
Views:	54
Size:	37.0 KB
ID:	14326   Click image for larger version

Name:	IMG_4117.JPG
Views:	44
Size:	25.8 KB
ID:	14327   Click image for larger version

Name:	IMG_4118.JPG
Views:	44
Size:	16.5 KB
ID:	14328  
__________________
2002 S8 Aqua Pearl, entirely original apart from FE 20" OEM wheels and Milltek exhaust.

Reply With Quote
  #2  
Old 8th September 2016, 07:44 AM
HPsauce HPsauce is offline
Senior Member
 
Join Date: Sep 2011
Location: About 250m from HS2!
Posts: 6,372
Default

Yes they are dual xenons and the colour is correct, probably 3500K or 4300K.

The "blue" colour you refer to will (mostly) be aftermarket kits that use a higher colour temperature, often as ridiculously high as 7000K.
Those bluer bulbs don't work as well, it's purely cosmetic.

You have a lovely OEM car, keep it that way.
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
Reply With Quote
  #3  
Old 8th September 2016, 07:46 AM
Architex_mA8tey's Avatar
Architex_mA8tey Architex_mA8tey is offline
Moderator
 
Join Date: Jan 2009
Location: London/Oxford/Swindon
Posts: 7,193
Default

Well they are the later FL bi-xenon lights so I would imagine that they are xenon bulbs, from the pics the colour doesnt look that bad but did you wait for them to properly warm up etc before you judged their colour? if you did then changing the xenon bulbs over would be the only solution I would think
__________________

Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Next - Clean Car, Phantom Aeriel, Clean Car again, Fit Variable Back Box with remote control on/off Loudness, RNS-e, Clean Car again!
Audi A8L D3 4.2 Petrol with LPG - Oyster Grey
and some other A8's A8L's and Mercs
Reply With Quote
  #4  
Old 8th September 2016, 07:47 AM
Adrian E's Avatar
Adrian E Adrian E is offline
Senior Member
 
Join Date: Dec 2010
Location: Gatwick area
Posts: 3,603
Default

Hiya

Those are bi-xenons using a d2r bulb for headlight/main beam. There's a seperate halogen bulb for flash and also comes on with main beam (the round one in the corner)

There are modern d2r osram bulbs available that claim to be a good bit brighter, but depends on the age of the bulbs in there as they do dull and change colour temperature with age

What you might also notice is that the sidelight bulb is both pathetic and very yellow. There are led options but unless you want to see a pcb through the front of the headlight your options involve some dismantling to modify the reflector to accept a chunkier housing bulb. I've done this on mine with detailed pics, so worth looking for a thread on headlight refurb
__________________
===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD===

2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus

2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
Reply With Quote
  #5  
Old 8th September 2016, 08:49 AM
The_Laird's Avatar
The_Laird The_Laird is offline
Senior Member
 
Join Date: Jun 2009
Location: Redmile: Leics, Notts, Lincs border - near Belvoir Castle
Posts: 4,259
Default

One other cause of the 'yellow' bulbs might be discolouration of the plastic 'lens'. The headlights are quite easy to remove and dismantle and the plastic lens can be cleaned, perhaps using a proper plastic cleaner/scratch remover rather than just soap and water.
__________________
2002 Final Edition S8. Ebony black with Silver Grey leather and myrtle wood trim.
Current mods: solar sun roof, 20mm rear spacers, 15 mm on front, red brembo callipers, 6k headlights, rear view camera, engine remap, alloy dash dial rings, alloy navi rings, tt/phaeton pedal upgrade, (and custom matching foot rest) dension ipod interface & parrot hands free kit (both fully hidden), av input, tv in motion switched thro' PF switch in blanking plug right of steering column, Audi 'quattro' sill covers, repositioned centre console switches, radio clock, .
Planned mods: auto-dimming rear view mirror, dash cam (as steamship's), fit the ski hatch, refit philips drl's (or maybe not).
Reply With Quote
  #6  
Old 8th September 2016, 09:27 AM
Conquistador's Avatar
Conquistador Conquistador is offline
Senior Member
 
Join Date: Nov 2012
Location: Essex
Posts: 1,263
Default

OEM colour temp is 4250k if I remember correctly.
__________________
Check out my blog:

===========================

Aqua Blue Pearl S8 / Kamut beige leather, ACC, B&O, RSE,
solar sunroof, electric blinds, ski bag, Homelink, comfort
headrests. Hunting a beige fridge!
Reply With Quote
  #7  
Old 8th September 2016, 09:42 AM
Mossyboy1978 Mossyboy1978 is offline
Member
 
Join Date: Aug 2016
Posts: 50
Default

Thanks everyone

Adrian - the LEDs are already in place and I'm fine with the PCB look so will leave

HP - always happy with OEM as long as I can see where I'm going.

Laird - lenses are lovely and clean. So its certainly the bulbs.

I will investigate Osram brighter bulbs but most importantly it looks like its bi xenon which is what I was hoping anyway!

Thanks for the helps chaps

Mossy
__________________
2002 S8 Aqua Pearl, entirely original apart from FE 20" OEM wheels and Milltek exhaust.

Reply With Quote
  #8  
Old 8th September 2016, 11:21 AM
homer simpson's Avatar
homer simpson homer simpson is offline
Senior Member
 
Join Date: Nov 2013
Posts: 362
Default

Quote:
Originally Posted by Conquistador View Post
OEM colour temp is 4250k if I remember correctly.
Yes this is about right.

Personally I tend to find the 5-6000k bulbs more to my liking as they are more 'pure white'
Reply With Quote
  #9  
Old 8th September 2016, 11:59 AM
mattylondon mattylondon is offline
Senior Member
 
Join Date: Apr 2014
Location: Norwich & L'viv
Posts: 1,620
Default

Reason OEM colour temperature is around 4300K is because that's the peak output lumens/watt. Once you're over 6000k the output brightness reduces.
__________________
Matt

2004 A8 3.7q, 1998 A4 2.8q, 1994 Coupe 2.8q SORN,
Reply With Quote
  #10  
Old 8th September 2016, 12:48 PM
Adrian E's Avatar
Adrian E Adrian E is offline
Senior Member
 
Join Date: Dec 2010
Location: Gatwick area
Posts: 3,603
Default

There are 2 lenses on the bi-xenons the inner one is plastic and clipped on. Goes dull with age, but don't recommend anything more aggressive than water to clean it if you decided to strip the lights. The silver finish on the edges of the inner lens isn't terribly robust to chemicals!

Is it just dipped beam you're not happy with?
__________________
===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD===

2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus

2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 04:27 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.