W124 start hesitation

[daphatch]

My 1990 300e has an odd starting pattern. I replaced cap rotor plugs and wires thinking it will solve my problem and it failed to do so. Sometimes the car will start n die right away and others it will take a few cranks to turn over and sometimes it will start perfectly fine. Car will always start tho does anyone know what the reason for this odd starting pattern and hesitation could be ? Want to hear some feed back before going ahead n replacing the starter