Temperature
 

What should the temp by on my 94 S 500 (w140) driving under normal conditions?

http://pages.prodigy.net/jforgione/MB_S500.html

Put the mail on hold, leave out a big bag of cat food, bolt the door and don't come out until you're done reading JimF's website :)

There's no description of what's normal per se, but it's typical to creep over 100C in traffic with the AC on. You should see a steady 85C or some sane number like that when you're cruising.

Sixto
95 S420
91 300SE
87 300SDL
83 300SD