rough idle check engine light on
07-05-2006, 12:39 PM
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rough idle check engine light on
As I got to work this morning I noticed that the car was idling roughly and the check engine light was on, so I shut off the car, gave it a couple of minutes and started it again. The idle is fine now but the check engine light is still on. What could cause this? I installed a K&N drop-in filter 7000 miles ago with no issues until now, can I reset the check engine light by myself if the idle becomes stable. Oh this morning, I filled up with the same gas at the same gas station too. Any helpful input is appreciated.
by the way the car is a 2005 c230ss with 19000 miles on it. service A done at 13000 miles.
by the way the car is a 2005 c230ss with 19000 miles on it. service A done at 13000 miles.
07-05-2006, 12:52 PM
#2
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Originally Posted by RedW203
As I got to work this morning I noticed that the car was idling roughly and the check engine light was on, so I shut off the car, gave it a couple of minutes and started it again. The idle is fine now but the check engine light is still on. What could cause this? I installed a K&N drop-in filter 7000 miles ago with no issues until now, can I reset the check engine light by myself if the idle becomes stable. Oh this morning, I filled up with the same gas at the same gas station too. Any helpful input is appreciated.
by the way the car is a 2005 c230ss with 19000 miles on it. service A done at 13000 miles.
by the way the car is a 2005 c230ss with 19000 miles on it. service A done at 13000 miles.
good luck!
07-05-2006, 02:31 PM
#3
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Originally Posted by nlpamg
same thing happened to me at around the same mileage except my experience was worse and the rough idle continued for a while. take it to the dealer, according to them, they reflashed my ECU and it was all good after that. I have a thread on this topic, I'll try to search for it later on, but if you want you can run the search.
good luck!
good luck!
What exactly was rest when you say "reset the ecu" ?
Self adaptation and readiness codes?
07-08-2006, 01:46 AM
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ARRRGGHH: It's BACK!!
S.O.B!!! The damn check engine light is on, same thing, the car drove fine until I parked it and the motor started to idle low, check engine light is on again, and the gas cap trick didn't work. If this keeps up, the car will be going soon, just **** after another. I'm still trying to sell the wheels I just brought and now this, damn it!!! sorry i just needed to vent.
07-08-2006, 01:50 AM
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My 03 C230 coupe did the same thing, engine light would come on, rough idle and then would eventually go away, and the check engine light would go off. Well it kept doing this like once every two weeks, finally took it to the dealer to check it out. Long story short, one of the pistons is bad and they need to send it to a machine shop. Luckily the car is under warranty at 27K miles...........
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07-08-2006, 02:23 AM
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Originally Posted by RedW203
S.O.B!!! The damn check engine light is on, same thing, the car drove fine until I parked it and the motor started to idle low, check engine light is on again, and the gas cap trick didn't work. If this keeps up, the car will be going soon, just **** after another. I'm still trying to sell the wheels I just brought and now this, damn it!!! sorry i just needed to vent.
https://mbworld.org/forums/c-class-w203/119043-check-engine-light-really-rough-idle.html
07-08-2006, 12:20 PM
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Originally Posted by Buellwinkle
Redw203, sounds like a bargain to be had, will you take $5,800 for it.
07-09-2006, 12:55 AM
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the car's idle is fine again and the check engine light went off, at least for now, based on Ryan's experience it's liable to come back, I'm bringing it in for service check on monday.
07-10-2006, 10:56 PM
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i had a local independent read me the error codes, there are 3:
1. Cylinder 1 is misfiring.
2. & 3. are the same and it says low fuel level.
The tank is full too and the independent shop said it's unlikely to be the fuel filter (w/c is $137 parts only). It's going in for warranty service on wednesday, i just hope it's nothing too disappointing.
1. Cylinder 1 is misfiring.
2. & 3. are the same and it says low fuel level.
The tank is full too and the independent shop said it's unlikely to be the fuel filter (w/c is $137 parts only). It's going in for warranty service on wednesday, i just hope it's nothing too disappointing.
07-11-2006, 01:21 AM
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Originally Posted by 06C230
it's a fuel issue, had to take the wifes car in for the same thing. Dealer fixed it in an afternoon, and no more problems.
did the dealer charge you? or was it a warranty work? I just don't want to pay $120/hour on dealer labor.
07-11-2006, 09:27 AM
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2006 C230
Originally Posted by RedW203
did the dealer charge you? or was it a warranty work? I just don't want to pay $120/hour on dealer labor.
07-14-2006, 12:42 AM
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a little update
well I dropped off the car at the delership yesterday afternoon and I just heard from my service advisor today, they're replacing one of the cylinder heads, that sounds like a couple of thousand worth of warranty work, i just hope problem doesn't start popping after this work.
btw, the dealer loaned me an 06 c230 and I wouldn't trade my m271 motor for it (no offense to 06 owners) the 06 is a great car, until you drove an 05, i thought the 05 was slow... well you get the point.
btw, the dealer loaned me an 06 c230 and I wouldn't trade my m271 motor for it (no offense to 06 owners) the 06 is a great car, until you drove an 05, i thought the 05 was slow... well you get the point.
07-14-2006, 12:02 PM
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CL203
The torque delivery from M271 motor will give u an impression that the car is very powerful. But the new 6-cyl C230 is actually not a slow car...
Originally Posted by RedW203
well I dropped off the car at the delership yesterday afternoon and I just heard from my service advisor today, they're replacing one of the cylinder heads, that sounds like a couple of thousand worth of warranty work, i just hope problem doesn't start popping after this work.
btw, the dealer loaned me an 06 c230 and I wouldn't trade my m271 motor for it (no offense to 06 owners) the 06 is a great car, until you drove an 05, i thought the 05 was slow... well you get the point.
btw, the dealer loaned me an 06 c230 and I wouldn't trade my m271 motor for it (no offense to 06 owners) the 06 is a great car, until you drove an 05, i thought the 05 was slow... well you get the point.
07-14-2006, 03:17 PM
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Originally Posted by ijs
The torque delivery from M271 motor will give u an impression that the car is very powerful. But the new 6-cyl C230 is actually not a slow car...
07-16-2006, 12:18 PM
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CL203
Yeah, the 7G-tronic is almost perfect! I wonder why the AMG are not using it...
Originally Posted by RedW203
you're probably right, I just had high expectations from the v6, i love the 7 speed tranny though.
