sometimes car won't start

[milknit59]

i have a 1987 325i convertible, runs great. occasionally i will go to start it and "nothing" a few times i jump it with an other vehicle and all was fine.
today would not start, tried to jump and no good. battery had power. just kept turning key trying and finally she started and off i go
tested for key off draw and found none.
any ideas from the forum

[Jeron]

I would guess a relay or the solenoid in the starter.

[milknit59]

thanks, i'll give that a try