380SL Stalls At Stoplight & Cold Start Problems?

[ezrider]

I have a 1985 380SL with 110K miles. Last night we had very dense fog in our area. After stopping for stoplights the car would stumble and die and then restart OK until the next stoplight (has never done that before).

It also has not been cold starting very well, it cranks longer than usual, starts then dies when attempting to pull out, after running for 30-45 seconds it behaves Ok after cold start. Recently replaced fuel filter, cold start fuel enrichener, glove box fuel pump relay and spark plug wires. Does this sound like a bad fuel pump or what? Also maybe condensation in the distributor cap (thinking this as I write)?

Please help with ideas.

Thank you.