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300SE Engine Surge at Startup

1044 Views 4 Replies 4 Participants Last post by  sprocket
When starting my 1993 300SE from cold the engine starts and revs itself to past 2,500 revs before settling down. This seems to be very bad for the engine as the oil pressure hasn't built-up yet.
Is this normal or do I need to look at this?
Thanks
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1994 W124 E320 1997W140 S320(RIP),1993W140300SE(RIP),2000W208CLK320(RIP) , 1993 W201 190E 2.6 (RIP),
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Yeah, mine does too, but I've never looked at the rpm. It's just enough to be noticable, b...

Yeah, mine does too, but I've never looked at the rpm. It's just enough to be noticable, but has never enough to worry me. Might keep a closer eye on it.
 

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W140 S class, E31 850Ci, XC90 Exec AWD geartronic
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When starting my 1993 300SE from cold the engine starts and revs itself to past 2,500 revs before settling down. This seems to be very bad for the engine as the oil pressure hasn't built-up yet.
Is this normal or do I need to look at this?
Thanks
2500rpm seems excessive. Mine never idols above 800-900 rpm on cold frosty morning startups. I would get it checked out.
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