|
|
|
#1
|
|||
|
|||
2003 C230 Coupe Cylinder Misfire in Neutral
A couple of months out of warranty my 2003 C 230 Kompressor Coupe (50K miles, automatic) has started to give me a CEL with a P301 (Cyl 1 Misfire) only when the engine is warm and I put it in neutral or park. I can drive it all day, it idles fine in gear, but if I take it out of gear it will misfire noticeably and the CEL light will come on. If I drive it, the misfire continues (rough RPM, loss of power), but if I turn off engine and restart, the problem goes away. I have tried swapping the Cyl 1 Ignition Pack, the problem remains on Cylinder 1. I have removed the #1 Spark Plug which looks OK. Any suggestions? Naturally , the first time this happened was when I pulled in forn an Emissions Test.
|
#2
|
|||
|
|||
The coil for # 1 cylinder also fires # 3.
So, if the problem is isolated to # 1, you'll probably need a coil connector Call Phil at " Fastlane " ( above ), he may be able to help you.
__________________
2007 C 230 Sport. |
#3
|
||||
|
||||
Fyi
Nice talking with you on the phone.
Note: This is a four cylinder with four coil packs. It is an odd issue, and he is taking it to MBS (Mercedes-Benz Specialists) 3175 Pleasant Hill Road Duluth, GA 30096 (770) 623-8280 for further diagnosis. |
#4
|
|||
|
|||
This chassis is NOT Waste Spark Ignition..it is Coil Over /DIS with individual coils.
|
#5
|
|||
|
|||
Quote:
Guess I was thinking of my old 2000 C 230 K.
__________________
2007 C 230 Sport. |
#6
|
|||
|
|||
No problem..at least you know what a waste spark system was...most don't have a clue...unless they have a Harley.....
|
#7
|
|||
|
|||
Several bulletins on that problem including...broken PCV valve hoses..oil on air mass sensor...oil in wiring harness from cam solenoid & exhaust valves that aren't seating properly. YES burnt valves!
__________________
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 |
#8
|
|||
|
|||
your problem may be plug wires[they are famous for this] when the computer detects misfire it shuts down the injector and restarting brings it back on.i would replace both plug wires on #1.
__________________
David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg |
#9
|
|||
|
|||
just for INFO.. a M271 engine has NO spark plug wires. Coil connects directly to plug thru connector.
__________________
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 |
#10
|
|||
|
|||
oops wrong engine maybe i will read more closely.
__________________
David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|