Mine is foggy from a small crack, I was wondering if I could take it off, polish it and seal the crack?? Are there any tricks?

IIRC, IPD sells replacement lenses, so it must be removeable. Never done it myself.
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'94 945t; '95 854 base

thanks. looks like i need to replace it as it wont come clean.

Riley,
If you replace your reflector, could you do an experiment for me? My reflector is also dirty and I know I can't touch it. Could you spray yours with 409 or some other degreaser/cleaner and rinse it with water? Don't rub it with anything. If it cleans up a little bit, could you let us know with a brand new post? With the 164e in the shop, I cannot afford to get a new reflector right now.
Thanks,
Klaus
PS. The C70 lights are pretty neat, but Ecode have the best pattern.
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98 V70Rawd(101Kmi), 95 854T(85K mi), 75 164E(173K mi)

Klaus,

Sometime ago, I tooke the lenses out on my 1994 850 to clean them. I saw that the reflector was a little foggy with a very light dust like layer on it.
I got a very soft painter brush ( One of those used by picture painters, not wall painters) and carefully brushed all the surface. No damage at all. On some more stuborn spots, I actually used a piece of cotton for a more thorough cleaning, after brushing the spot. It looks like new. That was six months ago, and no side effects so far. The silver coating did no come off, but it can be scratched very easily. I think one might be tempted to use compressed air. No good as the air will have some oil in it or some humidity. This will really mess up the reflectot beyond hope.

There are clips around the perimeter of the lens and a gasket to seal it.

Many would suggest that you get some E-code lenses - do a search to find out more.

DO NOT repeat, DO NOT try to clean the reflector, as the shiny stuff will come off or get all messed up. You might do a search on this as well.
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'96 855R, '95 855, 854, '90 744 TI, 366,000 miles put on 7 bricks