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Intermittant Rear Brake/Turn Signal Light Outage
07-06-2009, 09:25 AM
#31
standard bulbs
I will try some of these things if I can figure out part numbers. I need to open mine up to take a look at it, but I pulled out the service manual to see what it says:
"Depending on market version, LEDs may be used for brake lamps and a 21 W halogen bulb may be used for rear fog lamp" I have a 2005 with Bi-Xenon/Adaptive Lighting (not sure if that matters in any way).
It looks like there are 5 bulbs in the picture labeled "A94-10094." The numbers below refer to the 5 bulbs, as labeled in the picture.
2-Lamp Bulb
"For turn signal lamp, 12 V, 21 W, Orange"
3, 4, 13-Lamp Bulb
"12 V, 21W"
14-Lamp Bulb
"Back-up lamp, Basis version, drivers and passengers side, as well as USA vehicles: 12V, 21 W
Rear fog lamp, High version, drivers side: 12 V, 21 W Halogen lamp bulb.
Back-up lamp, High version, passengers side: 12 V, 21W"
It then gives info on replacing the Rear Lamp Bulb Holder, which looks easy enough. However, I can't find parts on any of this. This is my first time to use the service manual, but I would think they'd be listed in the manual somewhere. That would make sense. I see no mention of how to tell what kind of bulbs are needed (it's 12V, 21W, but what size, connection-type, etc). I then also don't see how to find the part number for that bulb holder.
I would love to order these items today if I could possibly find out what bulbs I should order and holder. I'll wait on the LED array until I know I need to do that. Does anyone have any ideas? I'm sorry for the "newbie" questions for repairing this car!
"Depending on market version, LEDs may be used for brake lamps and a 21 W halogen bulb may be used for rear fog lamp" I have a 2005 with Bi-Xenon/Adaptive Lighting (not sure if that matters in any way).
It looks like there are 5 bulbs in the picture labeled "A94-10094." The numbers below refer to the 5 bulbs, as labeled in the picture.
2-Lamp Bulb
"For turn signal lamp, 12 V, 21 W, Orange"
3, 4, 13-Lamp Bulb
"12 V, 21W"
14-Lamp Bulb
"Back-up lamp, Basis version, drivers and passengers side, as well as USA vehicles: 12V, 21 W
Rear fog lamp, High version, drivers side: 12 V, 21 W Halogen lamp bulb.
Back-up lamp, High version, passengers side: 12 V, 21W"
It then gives info on replacing the Rear Lamp Bulb Holder, which looks easy enough. However, I can't find parts on any of this. This is my first time to use the service manual, but I would think they'd be listed in the manual somewhere. That would make sense. I see no mention of how to tell what kind of bulbs are needed (it's 12V, 21W, but what size, connection-type, etc). I then also don't see how to find the part number for that bulb holder.
I would love to order these items today if I could possibly find out what bulbs I should order and holder. I'll wait on the LED array until I know I need to do that. Does anyone have any ideas? I'm sorry for the "newbie" questions for repairing this car!
Of course Audi will tell you to use their special bulbs. When I bought mine from the dealer (about $3.00 each) the four white ones came out of a bulk box with English writing on it - nothing special. The amber bulb did come packaged with the Audi logo on it - in a separate box.
The LED is a different matter. Good luck.
07-06-2009, 11:04 AM
#32
AudiWorld Senior Member
Thread Starter
Thanks for those thoughts. I'll do that.
I did look on AutoZone just for fun and found they think the Sylvania SilverStar 7507A works, which makes sense from what has been reported. It does show to 21 watts with 275 lumens on the Website. That comes up as amber when on and irridescent when off. One question I had from a previous post. Why is one bulb amber when it seems that the cover is just red. I don't see any difference between the lights, i.e. I don't think any look different from one another.
So, I headed over to Sylvania's site and there's a replacement guide. Here is what it says:
Googling on the long light version I see this: http://www.clubtouareg.com/forums/f6...ing-18715.html The guy got the 7528 for his Touareg and that resolved his issue.
I did look on AutoZone just for fun and found they think the Sylvania SilverStar 7507A works, which makes sense from what has been reported. It does show to 21 watts with 275 lumens on the Website. That comes up as amber when on and irridescent when off. One question I had from a previous post. Why is one bulb amber when it seems that the cover is just red. I don't see any difference between the lights, i.e. I don't think any look different from one another.
So, I headed over to Sylvania's site and there's a replacement guide. Here is what it says:
2005 AUDI A6 (With HID (high intensity discharge) headlamps)
High & low beam headlamp
HID-D2S
Parking light
3457ALL
3457AST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
Front turn signal
2827
3457ALL
3457AST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
Rear turn signal
7507
7507AST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
7507LL Long Life Upgrade: Up to twice the life of the standard lamp
Tail light
7528
7528LL Long Life Upgrade: Up to twice the life of the standard lamp
Stop light
7528
7528LL Long Life Upgrade: Up to twice the life of the standard lamp
High mount stop light
Assembly
Fog/Driving light
H7
H7SU Silverstar ULTRA for Ultra Night Vision - The Whitest and Brightest Halogen
H7ST Silverstar High Performance Lighting: The Whiter and Brighter Halogen
H7EB EcoBright - Your Environmental Choice
H7XV XtraVision Halogen - The Brighter Light
H7CB Cool Blue Halogen - The Whiter Light
License plate
6418
6418LL Long Life Upgrade: Up to twice the life of the standard lamp
Back up light
921
921ST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
921LL Long Life Upgrade: Up to twice the life of the standard lamp
Front sidemarker
2827
Glove box
2825
2825LL Long Life Upgrade: Up to twice the life of the standard lamp
Map light
64111
Dome light
64111
Step/Courtesy light
2821
2825
2825LL Long Life Upgrade: Up to twice the life of the standard lamp
6418
6418LL Long Life Upgrade: Up to twice the life of the standard lamp
Trunk/Cargo area
2825
2825LL Long Life Upgrade: Up to twice the life of the standard lamp
6486X
Daytime running light
2825LL
High & low beam headlamp
HID-D2S
Parking light
3457ALL
3457AST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
Front turn signal
2827
3457ALL
3457AST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
Rear turn signal
7507
7507AST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
7507LL Long Life Upgrade: Up to twice the life of the standard lamp
Tail light
7528
7528LL Long Life Upgrade: Up to twice the life of the standard lamp
Stop light
7528
7528LL Long Life Upgrade: Up to twice the life of the standard lamp
High mount stop light
Assembly
Fog/Driving light
H7
H7SU Silverstar ULTRA for Ultra Night Vision - The Whitest and Brightest Halogen
H7ST Silverstar High Performance Lighting: The Whiter and Brighter Halogen
H7EB EcoBright - Your Environmental Choice
H7XV XtraVision Halogen - The Brighter Light
H7CB Cool Blue Halogen - The Whiter Light
License plate
6418
6418LL Long Life Upgrade: Up to twice the life of the standard lamp
Back up light
921
921ST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
921LL Long Life Upgrade: Up to twice the life of the standard lamp
Front sidemarker
2827
Glove box
2825
2825LL Long Life Upgrade: Up to twice the life of the standard lamp
Map light
64111
Dome light
64111
Step/Courtesy light
2821
2825
2825LL Long Life Upgrade: Up to twice the life of the standard lamp
6418
6418LL Long Life Upgrade: Up to twice the life of the standard lamp
Trunk/Cargo area
2825
2825LL Long Life Upgrade: Up to twice the life of the standard lamp
6486X
Daytime running light
2825LL
07-06-2009, 12:52 PM
#33
AudiWorld Senior Member
Thread Starter
With NoVA_A6's suggestion to check GenuineVWAudiParts.com, it looks like here's the bulb holder for $16.31. They also seem to sell the bulbs for like $1.74 each with $3.30 for the amber one. I don't see the LED array however. Can anyone help locate those parts? That might be the $131 (right) or $159 (left) seen here. I'm going to go ahead and order the bulb holder and a set of bulbs. That's $26.57 + $7.50 shipping.
Last edited by schalliol; 07-06-2009 at 12:57 PM.
07-06-2009, 06:39 PM
#34
Audiworld Junior Member
I have a similar issue with my 2005 A6 but just with the drivers side turn signal. Periodically i will get the rapid blinker. I attempted to remove the light housing and replace the bulb with the sylvania 7507. I havent replaced it yet as the turn signal started working fine again once I messed with the wires... Loosed or faukt wiring or bulb housing? I'm not sure...
07-06-2009, 06:56 PM
#35
AudiWorld Senior Member
Thread Starter
Yeah, it's hard to figure out. Even though I ordered these parts, it seems that the LED array (or wiring) is the issue since I don't think the bulbs I'm replacing are part of the turn signal. I have the same issue as seckler17, except whenever mine blinks off, I lose the brake light too. Genuine VW Audi Parts seems to have the LED array, but it seems to be part of the whole package. Can anyone find just the LED array part to order?
07-07-2009, 10:26 AM
#36
Yeah, it's hard to figure out. Even though I ordered these parts, it seems that the LED array (or wiring) is the issue since I don't think the bulbs I'm replacing are part of the turn signal. I have the same issue as seckler17, except whenever mine blinks off, I lose the brake light too. Genuine VW Audi Parts seems to have the LED array, but it seems to be part of the whole package. Can anyone find just the LED array part to order?
07-07-2009, 10:27 AM
#37
AudiWorld Senior Member
Thread Starter
Ugh...So is the cheapest place to find it at Genuine VW Audi Parts? Also, does anyone know why the left one would be more expensive than the right as it seems to be?
07-07-2009, 01:19 PM
#38
Audiworld Junior Member
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I also had this problem, the dealer's technician looked into it and could not replicate the warning lights.
Here's what I did:
Pulled out the tail light, disconnected the connector, cleaned the contacts with alcohol and a q-tip, and then smeared a little pookie on the connectors. Put it all back together and haven't had a problem in six months.
Pookie is Texas-speak for dielectric grease. Get a small packet for .99 cents at the autoparts counter.
Here's what I did:
Pulled out the tail light, disconnected the connector, cleaned the contacts with alcohol and a q-tip, and then smeared a little pookie on the connectors. Put it all back together and haven't had a problem in six months.
Pookie is Texas-speak for dielectric grease. Get a small packet for .99 cents at the autoparts counter.
07-07-2009, 01:22 PM
#39
Audiworld Junior Member
Join Date: Apr 2003
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Oh, I have the 2005 A6 4.2, but it doesn't seem to matter much in this instance... and the driver's side rear lights were acting up...
I also had this problem, the dealer's technician looked into it and could not replicate the warning lights.
Here's what I did:
Pulled out the tail light, disconnected the connector, cleaned the contacts with alcohol and a q-tip, and then smeared a little pookie on the connectors. Put it all back together and haven't had a problem in six months.
Pookie is Texas-speak for dielectric grease. Get a small packet for .99 cents at the autoparts counter.
Here's what I did:
Pulled out the tail light, disconnected the connector, cleaned the contacts with alcohol and a q-tip, and then smeared a little pookie on the connectors. Put it all back together and haven't had a problem in six months.
Pookie is Texas-speak for dielectric grease. Get a small packet for .99 cents at the autoparts counter.
07-08-2009, 12:24 PM
#40
AudiWorld Senior Member
Thread Starter
Interesting, I looked up dielectric grease and found this thread. They way I read that says that the grease should make the connections less conductive. Did I read that correctly? BTW, did you use ethel or isopropyl alcohol? Thanks!