Easiest Question Today? 93 190E Headlamp Sw

[waylifeshouldbe]

Honestly, I did not do a search, frankly because I am at a lost as to word it to effective. I have an 88 560 SEL and a 93 (recent purchase) 190E 2.6. My question relates to the healight switch. The switch illuminates on the 560 and does not on the 190. I know we are talking about two different levels of "trim" but it seems to me the 190's headlamp switch should illuminate -NO? Can anyone confirm this for me? Do I have a blown bulb(s)? Thank you very much!