It's possible you could have a leaky injector or two. The reason I say this is because your starting symptoms indicate a possible flooded condition.

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Richard Wooldridge
'01 ML320
'82 300D 4.3L V6/T700R4 conversion
'82 380SL, '86 560SL engine/trans. installed
'79 450SL, digital servo update
'75 280C