Silver vision bulbs are just orange/amber bulbs that are painted gray. They look gray but illuminate orange and will fit any mercedes with OEM clear corners. If you have orange corners these bulbs will not fit (but with orange corners they wouldn’t be useful at all).
1993 was the year that mercedes started to use clear corners.
I saved the money I had to spend on these bulbs and painted some amber bulbs silver myself...

greetingz,

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1990 300SL-24
1993 C250D with a minor 600+k kilometer
www.MBenzNL.com(the Netherlands)