1991 300ce m104.98 has intermittent start problem - it doesn't matter cold or hot. It's about 50% start /hard start. This comes with shaky idle. I've so far replaced rotor, distributor, wires, plugs, regulator, belt. Battery tests good, starter good, alternator good. Would fuel system be next to check/replace?

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2017 - 1991 Smoke Silver 300ce Tan Interior
2014 - 1993 Blue 190e 2.3 Tan Interior
2012 - 1988 Blue 300ce Grey Interior
2009 - 1989 White 300e Grey Interior