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  #1  
Old 11-07-2005, 01:04 PM
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Join Date: Mar 2001
Location: Memphis, TN
Posts: 129
occasional High idle on starting

My 560SEC has recently started idling high (around 1500 RPM) about half the time I start it. After about 15 mintures, it starts idling normal. I searched the threads, but it seems that other people have the problem of idle surging or idle staying high. Any suggestions on what I should do?

Thanks,
Hemant
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Hemant

'57 190SL
'86 560SEC AMG
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  #2  
Old 11-10-2005, 10:56 PM
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Join Date: Sep 2005
Location: Vancouver, B.C.
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Idle

I wonder if your model has one of those micro switches on the throttle body
that tells the computer the throttle is released. If it has one, could it be faulty or mis-adjusted ?
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  #3  
Old 11-12-2005, 12:16 PM
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hmmm. maybe. Where would I look for it?
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Hemant

'57 190SL
'86 560SEC AMG
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  #4  
Old 11-13-2005, 02:00 PM
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Join Date: Oct 2003
Location: Ireland
Posts: 166
You are looking for something like this (from a 190e) under the airbox



The micro-switch sensor needs to be resting against the metal at idle.

Once or twice I've had a "sticking" idle at rest, a blast of WD40 around the mechanism works a treat.

Mike.
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