300E Hot Start
Assuming that you have CIS injection, one posiblity is the incorrect rest postion of the fuel distributor plunger. To check this, remove the air cleaner and gently push down on the flowmeter flow sensor (large round disc)in the intake to the flowmeter. You should feel a noticible increase in resistance once this disc travels a short distance. If you don't, it is likely that the distributor plunger is not seating when the engine is off, thus causing flooding. This adjustment can be done if you have the factory or Bosch manuals and are handy with a wrench. Dob't try this if you are uneasy. There a great potential for expensive damage in this procedure.