I'm not particularly familiar with the SL, but the symptoms you describe sound like vapor lock. Are any of the fuel lines routed too close to a heat source? (exhaust, cylinder head, etc.)

Mike

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1979 300 SD
350,000 miles
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1982 300D-gone---sold to a buddy
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1985 300TD
270,000 miles
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1994 E320
not my favorite, but the wife wanted it

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