300E No start on first crank, any ideas?

[can-do]

Greetings All,

Just to throw this one out there for responses. My '86 300E will crank and start on the first go around, but immediately will die. I then have to crank it over again to get it to stay running. Any ideas out there what I should be looking at? I changed the plugs out not more than 500 miles ago, but haven't chenged out the fuel filter since I owned it a year ago. Don't really know if the P.O. was real consistance on routine maintenance, but if oil changes are an indication, then it was most likely done sometime within the last 15000 miles. Are there any major items I can look at that may be causing this problem besides the fuel filter? Any input would be great as this is my wifes daily driver, and now it's a mentioning headache to me daily.

Thanks,

Charles