I was just on a long drive with my 1984 300SD and I stopped for fuel after about 4 hours driving. Temperature was in the 40s to 50s. After fueling the car would not start. The battery is new and all other electrical was functioning. I checked the fuse box, and they all seemed fine. The glow plug light went on and cycled through, but when I turned it nada. It was if the transmission was put in gear not park or neutral. I crashed the night and the next day the car started no problem in similar temperatures. I then ran the car for about an hour and turned it off, and it started again. Any thoughts? I could not find a similar post, but if you know of one. I would love to see it.

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1984 300 SD running SVO