Passenger side Euro light lense...

[Bernie Benz]

BTDT Mike.
I have one on the 200 with a spiral crack but it’s not leaking  
because of the Stongard sealing it and holding it together.  
Apparently the insulating effect of the Stongard is the cause of the  
cracking of a poorly normalized lens.. If I were to again apply  
Stongard I would first stress relieve the lens by slow heating and  
cooling to the limit of my kitchen oven, about 500F.

On the 90Q-20V a single diagonal crack went all the way across the  
lens and started to leak in spite of the Stongard. I removed the  
Stongard and the lens in two pieces and put the pieces back together  
with clear Si caulk at the crack interface. No more leaks. One must  
immediately stop the leaks or suffer corrosion of the interior  
reflecting surfaces.

Bernie


On Dec 13, 2009, at 9:51 AM, Mike Miller wrote:

> You might also try disassembling the light and wiping everything  
> off then
> re-sealing with some caulk to keep the moisture out if you are not
> successful in your search.
>
> mike
>
>
> ----- Original Message -----
> From: spaeth at gorge.net
> To: 200q20v at audifans.com
> Sent: Sunday, December 13, 2009 10:34 AM
> Subject: Passenger side Euro light lense...
>
>
> I have been a lurker here for many years. And we daily drive a 91  
> 200 Turbo
> Quattro Avant. I have Euro lenses and the passenger side is  
> cracked. It is
> causing moisture to get in and the light is barely working now.  
> This is our
> main winter ride. I have checked quite a few places and even tried  
> on German
> e-bay. Does anyone have a lead on this lense or even a set of  
> lights? Any
> tips on how to more accurately search German ebay?
>
> thanks
> Craig
>
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