I had the lenses polished... they were pretty yellow to begin with. That seemed to help with the low beams, but the highs are really ineffective... while driving home last night, my wife and I got into a debate as to whether the highbeams worked at all. She's convinced that they don't work at all, but you can just barely see a difference when you kick them on (this being in total darkness!) I have been driving with the fogs on... this helps with peripheral lighting, but I've got next to nil for distance. I had much better stock lights on my '93 Nissan Sentra... this can't be as good as MB can make a light... can it? I thought about bulb changes, but seems like a bulb either works or it doesn't... I don't recall a bulb getting dim with age.

-l-

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'84 300d turbodiesel (83K miles)
'96 300d (226K miles)
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other fine diesels...
'99 Polaris diesel (Fuji Heavy Industries single)
'01 Diesel Trail gator (Yanmar triple)
'95 John Deere 970 (Yanmar quad)
'11 BMW 335d
'12 VW Jetta TDI

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'00 BMW K1200LT
'02 BMW R1150RS

'15 BMW R1200GSA