84 500 SEL slow engine start-up

n/a

My engine cranks for 8 - 10+ seconds before s-l-o-o-w-l-y catching on. Then it sputters for several seconds until I give it some gas to clear it out. I got this car 2 weeks ago and the previous owner said, "do not touch the accelerator pedal until it starts." It seems like it's flooding. This happens when hot,or cold. He also said to change the plugs and it would run well.

Runs fine on highway but seems to eat lots of gas (14 mpg?). 211,680 miles on Od. Original paint and leather in very good condition.

Whaddya think, plugs? ... injectors? ... vacuum leak(s)? ...

Anyone?

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