Subject car: 1999 E300D

I noticed last night that the three memory buttons on the passenger side of my car are illuminated while the driver's side is dark. Does anybody know what style of bulb is used so I can ensure I have it on hand when I take things apart?


Also, any other "tasks" that should be performed while in there?

Thanks.

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1998 W210 diesel (wiped out by a texter)
Baum spring compressor "for rent"