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#1
11-15-2013, 04:09 PM
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Sudden Misfire 300SEL
Hi all, Have a 300 Sel, 1990 and today when I got home I noticed it was skipping. 140,000 klm and very well maintained. After looking around a bit I noticed a cable broke off and hanging free that comes from the ignition control module on the drivers fender well over to the front of the engine by the water pump. Black cable looks like it sheared off. Not sure if it is recent or been that way for a while. Anyone know what that is for or what it does? Could that be my source for skip? I am worried that may not be it
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1987 300 TDT 1990 300 SEL 
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#3
11-15-2013, 09:45 PM
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Quote:
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k  1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC]
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#5
11-17-2013, 12:29 AM
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Coil? Wires? I had a brand new rotor fail after 4,000 miles on my 300E, would barely start and ran horrible. Replaced it, ran fine another 25k till I got rid of it...
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-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#7
11-17-2013, 11:28 AM
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just a thought, how are the motor mounts on the car? A failing mount could change the angle the engine sits causing the wire to come off or pulled off rather. I noticed the same with my 300sel, there was a chatter noise that was not there recently and ended up finding one of the mounts starting to fail even though I did not feel any abnormal vibrations inside the car
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2001 E55 2001 E320 Sedan 2001 Subaru Legacy 2006 SLK280 2016 Subaru Outback 3.6
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#8
12-07-2013, 10:44 AM
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Seems the harmonic balancer flew apart. Never seen that before, so not a mis fire but shaking rather. Anyone know what the cable is called or part number?
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1987 300 TDT 1990 300 SEL
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#9
12-07-2013, 11:48 AM
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Happened to a pal of mine on his 300SE. It happens on the M103s, probably more common on the 126s due to the 3.46:1 and no overdrive.
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I'm not a doctor, but I'll have a look.  '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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