[s-cars] A6 tailight

[John Cody Forbes]

Mercedes commonly have issues similar to this and the only long term fix 
I've ever seen was new (usually aftermarket) tail lights. If it were mine I 
might try to build up some hard material where the plastic has melted; 
something like JB weld.

-Cody Forbes

-----Original Message----- 
From: dgraber460 at aol.com
Sent: Monday, January 28, 2013 12:20 AM
To: quattro at audifans.com ; s-car-list at audifans.com
Subject: [s-cars] A6 tailight


Our 05 A6 3.2 has been giving me fits for over a year now. The right rear 
tail light beeps a warning and ceases to function, leaving no right brake 
light or right side signal lights at all.
When this started over a year ago, I noticed all the bulbs were fine, and it 
would only occur after running about 10 minutes or when the rear of the car 
was in direct sun for awhile. Looking at the assembly I noticed a portion of 
the plastic housing around one bulb and next to the circuit board looked 
heat damaged and was cracked. I put some aluminum reflective tape over the 
crack but it didn't seem to make any difference. I next bought an LED bulb 
thinking it might burn cooler, but again no joy.
I then bit the bullet and bought a replacement from Chris Chambers, and when 
it arrived it showed the same plastic melting and cracking as my original. 
Very disappointed, I installed it anyway, and to my surprise it worked for 
awhile, but alas it has now also stopped working.
I seem to remember hearing that someone was able to re-solder the little 
circuit board or replace a component and achieve a successful repair. I can 
see no way to access the board without destructively removing it leaving the 
entire unit inop.
Anyone with info or procedure to affect a cure short of buying a new (read 
very expensive) replacement?
TIA


Dennis
Denver
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