My 1989 300E with 254k miles (I've clocked 94k of those) did something new this morning - it's throttle stuck. Not the pedal, mind you.
I escaped unharmed despite being on a hugely busy street going waaaaaaay above the speed limit by slipping into neutral, watching the revs climb to about 4500, mashing and holding the brakes while I came down from well over 70 and then shifting back into D.
This did the trick, but it left an impression on my amygdala (
the part of the brain that told our caveman ancestors not to hunt squirrels where the sabre-toothed tigers were last spotted).
Later in the day it did not do this again.
I wonder if this is a "known problem" on aging MBzs?