Does this cable attach to the right rear of the tranny, just above the pan? If so, that would be the kickdown solenoid. The solenoid is attached by a large hollow bolt (19mm bolt head) and is sealed with an o-ring.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.