Only the antenna switch gets 2 fibers since it has icons on the upper and lower half.

All the others get one fiber in the upper half only.

I would try cleaning the icons with a little rubbing alcohol and q-tips (gently). Then clean the ends of the fiber cables. Be sure to use a fresh dry q-tip to lift off the dissolved dirt and alcohol, don't let the alcohol evaporate on the surface or the dirt will still be there.

Finally put a fresh bulb in the spider and see if that helps.

__________________
The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech