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#1
01-10-2007, 06:41 PM
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5000rpm Cutout 560SEL
The problem is that in every gear the motor won't spin more than 5k like it was electronically limited. I can understand this in high gear but in kickdown mode it won't shift to the next higher gear.
When passing etc, you have to blip the accelerator to force a shift and this is NOT normal as it should turn 6k easy. I have a 560 SEL 1988. My mom gave it to me 2 years ago. I have drove it before and it would never go beyond 5000rpm for the past 6 years with all maintenance up-to-date(until 2 years ago and 6k miles ago since I got the car). The car has 181,000 miles on it, and NO lights are ON now after replacing OVP relay today that caused high idle(1500rpm) and ABS light on(thanks for the fix on this site!). I have the car perfect now, except for it won't go beyond 5000rpm(even in park it cuts out at 5000rpm sharp!) Any suggestions would be great! thanks... 
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#2
01-10-2007, 08:39 PM
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I would check the fuel pump relay, it should say 6000K on it, if not you have the wrong relay and thus improper rev limit.
Jonathan
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Blue Ridge Mercedes Jonathan Hodgman http://www.blueridgemb.com/ Enthusiast Service, Restoration & Tuning. Follow Us on Facebook! Located in the Atlanta area Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines. Mercedes Repair Atlanta
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#3
01-11-2007, 02:57 AM
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Mine's doing a bit similar, although at a bit lower RPM, about 4k. The spark is very weak, so I'm planning on changing the coil. My fuel economy is also very poor.
Leads, cap and arm are new, so the only thing left is the coil!
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Ben '85 500 SEL '85 928S2 '88 560 SEC '90 750i
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#4
01-11-2007, 08:22 AM
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The fuel pump relay is most likely problem (as suggested). should be marked as a 8 cylinder & list the cut-out RPM.
__________________
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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#6
02-01-2007, 07:07 PM
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Lyle,
That's your Klima (climate control) relay.. You want the one the one sitting next to this bad boy;-) Jonathan
__________________
Blue Ridge Mercedes Jonathan Hodgman http://www.blueridgemb.com/ Enthusiast Service, Restoration & Tuning. Follow Us on Facebook! Located in the Atlanta area Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines. Mercedes Repair Atlanta
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