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Audi A6 The mid-sized Audi A6 model offers more room to the driver and passengers over the A4 line.
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  #1  
Old 03-21-2011, 06:24 PM
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Default 2008 A6 Tail lights work then don't. Please HELP!

Hi there, I've searched the forum for awhile now and I can't seem to find anyone that had a similar issue with their A6 so I figured I'd ask for some advice from the people who know these cars best, their owners.
I have a 2008 A6 which keeps on telling me that I have my drivers side rear light bulb out, backup light out and foglight out. This all started a couple of days ago and I noticed that my lights out malf light didn't come on every time I took the car out for a ride. Today, I finally had time to get out to the store to buy the bulbs and I not only replaced all of the bulbs on the driver side but also on the passenger side as well. After testing everything out, all seemed to be good until the malf light came on again and a bulb that I just changed on the drivers side rear was not lit. Could this be just a dirty socket? I did wipe down everything when I took out the tail light assembly's. I hope its not more complicated. Just figured I ask before taking it to Audi, I'd hate to bring it in for something stupid. Thanks.
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  #2  
Old 03-21-2011, 07:24 PM
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It is a common problem in our cars. It is discussed all over AW. I had the same problem. The entire light unit needs to be replaced. Changing the bulbs does not correct the problem.
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  #3  
Old 03-21-2011, 08:10 PM
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The solution is far simpler and far less expensive. The problem is the ground connection in the cable that plugs onto the light assembly. You need to remove the light assembly and carefully clean the ground connection (cable and light assy). Ground is the brown wire. I used 600 grit paper (be very gentle; you only want to remove dirt and light oxide, not the plating) and laquer thinner. Reassemble and it works fine; no more warnings.
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Old 03-22-2011, 08:48 AM
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Thank you for your replies, I will try this today and let you know how it goes. I knew I could count on fellow Audi enthusiasts
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  #5  
Old 05-02-2012, 01:41 AM
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Default left tail light

Quote:
Originally Posted by plimagt3 View Post
The solution is far simpler and far less expensive. The problem is the ground connection in the cable that plugs onto the light assembly. You need to remove the light assembly and carefully clean the ground connection (cable and light assy). Ground is the brown wire. I used 600 grit paper (be very gentle; you only want to remove dirt and light oxide, not the plating) and laquer thinner. Reassemble and it works fine; no more warnings.
hi i have that same problem with my tail light, is there any way you can tell me step by step how to get to that assembly and where its located, i do know how to remove the light unit but that is about it thanks in advance.
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Old 05-02-2012, 06:47 PM
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met,
where the harness connects to the back of light housing, there are 2 rows of pins pointing outward. The bottom row with 1 pin is the ground that's the one to be clean. But you could clean all the pins while your at it. I've done it before and I also use a smallest flat screwdriver or even a needle to pull the harness pin open for a better contact. Also clean the contact point of the light bulbs and pull the contacts so there's better contact with the bulbs.
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Old 05-04-2012, 04:56 PM
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I had the same problem in my 2006 audi a6. I replaced all of the bulbs but still nothing worked. I ended up taking it to the dealer and they cleaned up some corrosion on the connector (which I didnt even think of looking at), and now it works fine. I could have done it myself, it cost me $50 for the dealer to do it.
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Old 05-05-2012, 12:25 AM
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Quote:
Originally Posted by eazy211187 View Post
met,
where the harness connects to the back of light housing, there are 2 rows of pins pointing outward. The bottom row with 1 pin is the ground that's the one to be clean. But you could clean all the pins while your at it. I've done it before and I also use a smallest flat screwdriver or even a needle to pull the harness pin open for a better contact. Also clean the contact point of the light bulbs and pull the contacts so there's better contact with the bulbs.
ok the ground pin had actually black stuff around it so i can see why it was doing that but all other pins were clean i cleaned them a bit to, 2 days now i haven't seen the light msg so i'm happy about that, thank you very mouch for all your help.

and does the harness connector need to be clean? or does that even open?
thanx.
  #9  
Old 05-07-2012, 01:22 PM
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There is a pc board and electrical contact cleaner in aerosol spray that works well to get into connectors. It's meant to eat away at corrosion small enough that you can't really see, but can cause problems in low amperage circuits. I've used it, let dry and then at least on my dirt bike I use dielectric grease. It's good to prevent further corrosion and is an electronic insulator, compatible with rubber as well. These two together work really well.
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Old 07-29-2012, 06:28 PM
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Can on of you tell me how to take the rear right side light assembly off? I have a 2006 A6 and need to replace the brake light bulb. Thx
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Old 05-23-2013, 05:12 PM
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Default Same Problem. No Solution

I have had the exact same problem as everyone here (Right tail light not working) on my 2010 Audi A4. I took apart the light assembly and harness unit and I didn't see any corrosion or anything resembling corrosion. Of course, I'm not qualified by any means but I compared both lights after dis-assembly and did not see any difference between the two. I'm starting to worry that this is an electrical issue. If anyone has any other suggestions, step by step instructions (Pictures and/or Video definitely preferred) I would be eternally grateful.
  #12  
Old 10-20-2013, 01:08 PM
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Default Right tail light problem!!!

Had the exact same problem. Changed all the bulbs with no effect.

After reading the forum, I cleaned the contacts with a small screw driver and sandpaper. Rassembled the tail light assembly and everything works like new.

This Forums input saved me a trip to the service deprtment!

....Thanks!!
  #13  
Old 04-24-2014, 10:24 AM
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2006 Audi A6 4.2L drivers side tail light problem

Tried cleaning contact prongs on housing and other suggested solutions, but they didn't work or were temporary. Found this link and step by step solution with pictures, and haven't had a problem since (has been 2 months). Was very easy and only took me 20 minutes start to finish, and best of all it was free because I had the parts I needed! Great post that saved me $100-$300 that dealer probably would have charged me.

Intermittent Taillight Issue
  #14  
Old 09-03-2014, 02:59 PM
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Default thankq

Thank Q for explanation and it seems really helpful .
But I couldn't catch how I have to clean and what exactly ?if I have any chance to send me any photo accordingly it will be great.coz it is really problem for me already , tried many electrition but no one knows anything.
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Old 09-04-2014, 05:27 PM
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Quote:
Originally Posted by mr__alpha View Post
Thank Q for explanation and it seems really helpful .
But I couldn't catch how I have to clean and what exactly ?if I have any chance to send me any photo accordingly it will be great.coz it is really problem for me already , tried many electrition but no one knows anything.
Cleaning the connections was only a temporary fix for me. Tried replacing bulbs also and that didn't work. Follow the link below and the instructions for a more permanent fix. It's not hard to do if you are at all mechanically inclined. Really easy fix problem, unless it's something totally different. Hope you can get it working. I've been error free from tail lights since I did the fix. Cost me nothing!

Intermittent Taillight Issue
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Old 09-10-2014, 09:37 PM
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Well it has happened to my right rear lights and my fix was to take needle nose pliers and twist the ground prong about 45 degrees to make it fit tighter in the female connector. It's still good after 3 weeks.
There is erosion to the ground pin due to current draw and it takes it's toll. When and if it gets to the point of reoccurring I will run a separate grd wire to the frame or proceed like noskill in his write up.
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  #17  
Old 03-18-2015, 09:16 AM
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Default Quick fix

I found a very easy fix, and in doing so learned more than i need so i'm sharing my knowledge here.


problem: rear left brake/turn (top part of the assembly) works for split second and the fails, suspected a short in the ground. Noticed that other lights (normal light bulbs on lower part of the assembly) worked find on the lower sections of the light


1. if it's just the top part of taillight then it's probably just the LED which is used as brake and left turn
2. located the two connection points + and - that connect the grey and red parts of the assembly. carefully shave off all of the black from the connections points and then plug back in and test


that's it
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Old 03-19-2015, 07:53 PM
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Default Audi a6 c6 tail light problem.

Ok guys ive had this problem happen to me on both tail lights now, and i have a permanent solution that has worked for me ever since,
Cleaning the pins will only work for a few weeks or months, what you need to do is cut the ground wire about an inch or 2 away from the connector and solder another wire to it about 5-6 inches long to make the ground wire longer so you can bypass the connector, now drill a hole threw the light bulb HOUSING not to big just enough to fit the wire threw, after your done you can put a bit of silicone to stop any water that might try to get in there, now your almost done, from the inside of the housing locate the pin that your ground wire connects to and solder your new ground wire on top of the pin from the inside you'll have to scrape the coding a bit or the solder wont stick and of course put some electric tape around the first connection that you made and put everything back together.
  #19  
Old 04-28-2015, 04:53 AM
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Exclamation Front indicator light on and off

Hi

I drive a 2011 Audi A3 and the problem that I am having is that the front indicator light and the back reversing works one day and the next day they don't. I get that message on that dashboard which warns me about the problem. They work for a day or two and they stop, then the next day they start working again for another day and start again.

Please advise anyone
Old 04-28-2015, 04:53 AM
 
 
 
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2008, 2009, a6, assembly, audi, brake, change, lamps, light, lights, q5, remove, tail, tailgate, work


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