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#1
11-09-2011, 12:35 AM
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C230 Idle Speed?
I recently noticed that my Son's 1998 C280 idles at about 800 rpm.
However, my 1999 C230 Kompressor idles at about 1300 rpm. Should mine be that high rpm? It doesn't feel like it's racing at a stop light. His is a 6 cyl while mine is a 4 cyl engine but other than that? Do turbo charged engines idle faster maybe? Just wondering if I am burning a lot of extra gas going nowhere!
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1999 C230 Kompressor 1998 C280 Son's car 1999 C280 Totaled by other Son Last edited by mbdoc; 11-09-2011 at 08:18 AM. Reason: too many (0) 
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#2
11-09-2011, 08:20 AM
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Both cars were designed to idle at aprox 750 RPM.
On the C230, I would try cleaning the throttle butterfly & housing & make sure that there aren't ant vacuum leaks.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
11-09-2011, 09:38 PM
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Idle Speed
Thanks MBdoc;
Sounds logical, but where is the throttle butterfly? and how would I go about checking for vacuum leaks?
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1999 C230 Kompressor 1998 C280 Son's car 1999 C280 Totaled by other Son
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