I don't know if my topic title is good enough, but I'm confused as to what to ask/say. My 1984 528e, after having sat for one month, started right up one day and I drove it a few miles and parked her back home in the driveway. I turned the key again and nothing. I waited a few minutes and the car started. I opened the hood and the battery terminals were very corroded, so I cleaned them immaculately, and the car started when I turned the key! The car wouldn't start the next time though.
What could be causing the car to want to start every once in awhile with no hestitation whatsoever, and then other times not do anything? You can hear the starter "clicking" when I turn the key, but nothing happens. So with my limited knowledge of these things...
1) Starter?? (I thought they either worked, or either didn't work)
2) Ignition Relay near the fuse box??
3) Battery? (I highly doubt this is the issue, as the car starts, and all the accessories are working)
4) Ignition Coil?? (It's a year old, So I doubt this is the culprit as well)