Hard start when hot 300E
08-12-2007, 12:23 PM
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Hard start when hot 300E
I have a 300 E that sometimes won't start when it gets warmed up after driving a while. You have to let it cool down and it starts just fine. Any suggestions on where to begin?
08-13-2007, 12:16 AM
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1995 E320 SE, 162,000 Miles (Sold)
Fairly common with M103 engine (pre '93). Us the Search function and you will find a very lengthy thread on this topic.
08-13-2007, 10:01 AM
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1995 E320 SE, 162,000 Miles (Sold)
I assume you use premium fuel? Standard fuel makes this problem worse because it will vapor lock at a lower temperature. Also, try holding the accelerator down 1/4 -1/2 way if it doesn't start after 5 seconds.
