5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
I don't know about making the angel eyes brighter but as far as foggy headlight lenses, you're better off getting some good plastic polish and buffing your lenses until they look new again. Unless you have buildup of dirt, dust inside the lens you can get them back to almost perfect again without having to pay for a new set. I've returned many dull lenses to new, make sure to apply wax after polishing so the surface is protected.
no sense cleaning the inside of lenses, if you have any dirt or dust in them that means that they're not airtight so it's just going to get that way again. they are sealed to not let in anything but if you have stuff inside them then that problem isn't correctable you probably should change them if you want clear lenses
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