A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D3 > D3 - Lights

D3 - Lights Headlights, xenons, foglights. Everything outside the car that glows

Reply
 
Thread Tools Display Modes
  #1  
Old 3rd November 2019, 06:19 PM
irelandbuyer irelandbuyer is offline
Senior Member
 
Join Date: Aug 2015
Posts: 116
Default LED's Number plate lights

Lads, another post.

I replaced the dreaded corroded boot lid handle with a brand new part. Had to order the number plate lights which i did and they worked fine except they had a very dim yellow hue off them. I went to Halfords today and picked up a pair of their off the shelf bulbs for 15 quid. Fitted them but they're flickering and not coming on.

Have I tried to short route around on this in that the direct replacement LED's aren't designed for this application?

Tried reading a few posts here but can't make sense of it....
__________________
2007 Audi A8 D3 3.2 FSI
Reply With Quote
  #2  
Old 4th November 2019, 06:20 PM
DailyMike DailyMike is offline
Member
 
Join Date: Jan 2019
Location: East Riding of Yorkshire
Posts: 92
Default

Quote:
Originally Posted by irelandbuyer View Post
Lads, another post.

I replaced the dreaded corroded boot lid handle with a brand new part. Had to order the number plate lights which i did and they worked fine except they had a very dim yellow hue off them. I went to Halfords today and picked up a pair of their off the shelf bulbs for 15 quid. Fitted them but they're flickering and not coming on.

Have I tried to short route around on this in that the direct replacement LED's aren't designed for this application?

Tried reading a few posts here but can't make sense of it....
Hi.

LED's are polarity-sensitive, so...with the lights switched on, try plugging the LED's in t'other way. and see if thy spark into life.
This worked on my Range Rover number plate lights (LED's) this morning to get through the MOT!

Good luck! I hope your solution is just as simple....

DailyMike.
__________________
Current modes of transport:
2004 A8 4.0DTI Quattro
19"wheels; Silver; 109,000 miles; Been off the road for several years. Lotsa work to be done
[BSold with regret:]2002 A8 4.2 (40v) Quattro Sport, 18" QS wheels; Prins LPG[/b], Silver; Black leather; newly-refurbished wheels in Anthracite...pics to follow soon!
2000 P38 Range Rover Vogue 4.6 V8 LPG, Epsom Green, fully-rebuilt engine (Top-hat liners, new camshaft for better mid-range torque); New S/S sports exhaust...SOUNDS BRILLIANT!
2014 Mondraker TrakkerR; 29-er, 30-speed gear train; rise'n'fall saddle; Mountain bike...NOT a cart-horse!
"JONDOR" a 116' long, 17"6" beam Humber Barge, Built 1950, ex oil tanker, fully refurbished Gardner 6LXC engine for propulsion (one day); requires new marine gearbox; 2-cylinder Petter Diesel engine & 3-cylinder diesel auxilliary engines with 12/24v and 230/415v gensets
"JONDOR" is a slow-burn project, being converted to provide suitable accommodation for wheelchair users and their carer/family for short respite breaks. Currently moored on River Humber at Old Beverley Shipyard
SOLD***2006 LWB Ford Transit 2.4 Diesel, Luton Van; Tail-lift; leaking translucent roof SOLD***

Previous vehicles:
Far too many to list individually, but includes 2005 A8 D3 3.0TDI Quattro Sport; 2007 A6 3.0TDI Avant; 2005 A4 2.0 Avant; 2007 A3 2.0TDI; 7-off Citroens, Many Fords, Austin 1100 (my first car), Lotus 7, Rover SD1 3500; SAAB 9000i, SAAB 9000 turbo; BMW 530; another P38 Range Rover (the crap one with BMW 2500 diesel engine...wouldn't tow the skin off a rice-pudding! )
Daren't even mention the traumatic Morris Marina and Ital's....even an Austin Princess. Brain is now hurting somewhat, so giving up for now...
Reply With Quote
  #3  
Old 4th November 2019, 10:04 PM
snapdragon snapdragon is offline
Senior Member
 
Join Date: Nov 2011
Posts: 1,669
Default

Many LED festoons don't have a load resistor and heatsink to trick the bulb check into thinking the bulb is still there (LEDs on their own don't pull enough power). The lights are then disabled until the ignition is cycled.
You need the type with either the metal fins or the ones that look cast in ceramic (these are a better fit) I find they are a little bright so turn them round 45 degrees.
Reply With Quote
  #4  
Old 5th November 2019, 12:44 PM
homer simpson's Avatar
homer simpson homer simpson is offline
Senior Member
 
Join Date: Nov 2013
Posts: 1,142
Default

I recently did exactly this, new boot handle and LED bulbs from ebay. Working perfectly, I'll try and find the link
__________________
2008 (facelift) S8 with B&O, ACC, glass sunroof, reversing camera, front and rear heated seats, ceramic brakes, homelink, electric side and rear blinds, ski load through, heated fan washer jets, remote boot closing, de-flapped manifold, fridge, umbrella holder
Reply With Quote
  #5  
Old 13th November 2019, 10:42 AM
irelandbuyer irelandbuyer is offline
Senior Member
 
Join Date: Aug 2015
Posts: 116
Default

It's weird because I had the normal bulb and an LED in and it worked OK. When I went just now to replace the other one with an LED now neither work.....gremlins...
__________________
2007 Audi A8 D3 3.2 FSI
Reply With Quote
  #6  
Old 13th November 2019, 07:08 PM
snapdragon snapdragon is offline
Senior Member
 
Join Date: Nov 2011
Posts: 1,669
Default

Quote:
Originally Posted by irelandbuyer View Post
It's weird because I had the normal bulb and an LED in and it worked OK. When I went just now to replace the other one with an LED now neither work.....gremlins...
Yes, that is how it was for me first time around!
Reply With Quote
  #7  
Old 13th November 2019, 07:13 PM
HPsauce HPsauce is offline
Senior Member
 
Join Date: Sep 2011
Location: Chilterns, almost over HS2!
Posts: 8,366
Default

Quote:
Originally Posted by irelandbuyer View Post
It's weird because I had the normal bulb and an LED in and it worked OK.
If LEDs are a problem why not just use normal filament bulbs?
The rear numberplate is yellow after all (in the UK anyway) so LED lighting is a bit pointless. I gave up on it ages ago for that particular function.
And the OEM bulbs Audi use seem to last forever.
__________________
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". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one!
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.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
Reply With Quote
  #8  
Old 13th November 2019, 08:46 PM
homer simpson's Avatar
homer simpson homer simpson is offline
Senior Member
 
Join Date: Nov 2013
Posts: 1,142
Default

These were the ones I bought, just double check the size

https://www.ebay.co.uk/itm/AUXITO-36...EAAOSwigRdd33t
__________________
2008 (facelift) S8 with B&O, ACC, glass sunroof, reversing camera, front and rear heated seats, ceramic brakes, homelink, electric side and rear blinds, ski load through, heated fan washer jets, remote boot closing, de-flapped manifold, fridge, umbrella holder
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 08:33 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.