You're ignoring the basics and chasing your tail .

If the starter sometimes works but not when you jumper it directly at the solenoid, the solenoid is bad plain and simple .

All the other things may or may not need attention further but you're wasting time here .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better