Also check the Idle Control Unit. Tap it with a screw driver handle while running if it shuts down or fluctuates when tapped(rapped smartly) then it's the ICU.

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1986 Euro 500SEC "RUF" 9:1CR, "Rose"
1985 Euro 500SEC Cabriolet AMG Widebody
1982 Euro 500SEL "Blue"
2001 Texas Heeler (Aussie/Queensland X) "Sulphie",
2012 Queensland Red Heeler "Squeak"
Best dogs I've ever had.