92 500SL, 102k miles, 2 owner car, same owner past 14 years with full records. All the typical issues have been addressed over the years, and it just had a 30k major about 1k ago (before I bought it). Car runs out great, starts right up when warm, but when it's been sitting long enough to be fully cooled off, it is slow to turn, then gets a high-pitch turn, briefly, then slows back down. I let off, crank again, and voila - cranks right up. When it's already been running, starts right up as well.

Also, whenever I put it in park after driving, the idle goes a few hundred RPM too high.

On my 400E, starting is very robust, roars to life. The SL sort of slowly rises to life. Battery good. My seat of the pants sensation is a fuel delivery issue.

Ideas?

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former: 83 300D, 97 C230, 93 400E

current: 08 C300 Luxury , 92 500SL