This is about my 84 500SEL.
I was out of town yesterday and made a stop for lunch. Switched the car off but the key wouldn't come out. Switched it back on but didn't try to start it, just switched it back to off and key still would not come out. It was in OFF, not LOCK. I just left it alone and had lunch. Came back and tried to start it but key would not turn to START position. Left it in the RUN position and jumpered the starter at the right front inner finder and engine started. Drove home (150 miles) with no problems.
Got home and shut it off and removed the key. Put it back in and started engine. Every thing was fine.
Suspected the lock cylinder. Removed it and it felt like a new one. Removed the steering lock assembly, took it apart but couldn't find any thing broken, bent, or binding. Took apart the Ignition switch and couldn't find anything broken, bent, or binding.
Anyone seen these symptoms before? If so, what was the fix?
I am going to replace the lock cylinder anyway just because I know they cause a lot of problems. Thanks in advance for any words of encouragment.

Paul

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84 500 SEL (307,xxx miles)