2005 C230 Kompressor Sport Engine Surging
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2005 C230 Kompressor Sport
2005 C230 Kompressor Sport Engine Surging
Long time lurker, first time poster.
I've had a 2005 C230 Kompressor Sport for about 2 years now, and love it. Unfortunately the other night I shut it off working perfectly, and in the morning it started up with a heavy shuddering/rocking/bucking engine. It will move, but barely. I have looked through the website looking for answers, but thought I would post up my codes, and experiences so far so as to hopefully solve the issue and provide an answer for others who have the same thing come up. Here is what I have:
Codes:
PO303 (confirmed) Misfire
PO172 (confirmed) Bank 1 System too rich
PO300 (pending) Multiple Misfire Detected
PO301 (pending) Misfire
Visual:
I took off the cover to the coils, and saw the cylinder one coil/spark plug hole has visible oil. Kind of like they missed when they filled the oil after it's last oil change. Cylinder two is wet as well, but not as wet. Cylinders 3 and 4 are bone dry.
No other visual disconnections, damage, oil, coolant, or other problems.
So far:
I disconnected the battery, waited 15 minutes, and reconnected it. No Change.
I have started it a half dozen times, with no change.
I have not inspected the $12 hose yet.
Help!
Let me also add that about two weeks ago I had my car in for an oil change at the local conrads. When I got it back, the interior lights didn't work, sunroof didn't work, and drivers window auto return didn't work. Related somehow?
I've had a 2005 C230 Kompressor Sport for about 2 years now, and love it. Unfortunately the other night I shut it off working perfectly, and in the morning it started up with a heavy shuddering/rocking/bucking engine. It will move, but barely. I have looked through the website looking for answers, but thought I would post up my codes, and experiences so far so as to hopefully solve the issue and provide an answer for others who have the same thing come up. Here is what I have:
Codes:
PO303 (confirmed) Misfire
PO172 (confirmed) Bank 1 System too rich
PO300 (pending) Multiple Misfire Detected
PO301 (pending) Misfire
Visual:
I took off the cover to the coils, and saw the cylinder one coil/spark plug hole has visible oil. Kind of like they missed when they filled the oil after it's last oil change. Cylinder two is wet as well, but not as wet. Cylinders 3 and 4 are bone dry.
No other visual disconnections, damage, oil, coolant, or other problems.
So far:
I disconnected the battery, waited 15 minutes, and reconnected it. No Change.
I have started it a half dozen times, with no change.
I have not inspected the $12 hose yet.
Help!
Let me also add that about two weeks ago I had my car in for an oil change at the local conrads. When I got it back, the interior lights didn't work, sunroof didn't work, and drivers window auto return didn't work. Related somehow?
Last edited by Jimmy Walker; Feb 26, 2014 at 01:42 PM. Reason: Forgot additional info
Thread Starter
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2005 C230 Kompressor Sport
At the recommendation of a Mercedes Mechanic, I replaced the spark plugs and coils. Here is what I found:
Number 1 spark plug was under oil (like they missed when filling the oil). The oil was on top of the plug, not inside the combustion chamber.
Number 2 spark plug was under a bit of oil.
Number 3 was dry and looked good.
Number 4 was dry, but looked a little funky. Like it had been worked over. Not exactly burned, but didn't look healthy.
After replacing them I ran the car again. Same surging as before.
I shut the car off, cleared the codes, and ran it again.
This time I got this code:
PO010 Intake Camshaft Position Actuator Circuit/Open (Bank 1)
Mostly it runs very rough at idle. At times it sounds almost like it usually does. When you rev it, it sounds fine.
I'll keep searching...
Number 1 spark plug was under oil (like they missed when filling the oil). The oil was on top of the plug, not inside the combustion chamber.
Number 2 spark plug was under a bit of oil.
Number 3 was dry and looked good.
Number 4 was dry, but looked a little funky. Like it had been worked over. Not exactly burned, but didn't look healthy.
After replacing them I ran the car again. Same surging as before.
I shut the car off, cleared the codes, and ran it again.
This time I got this code:
PO010 Intake Camshaft Position Actuator Circuit/Open (Bank 1)
Mostly it runs very rough at idle. At times it sounds almost like it usually does. When you rev it, it sounds fine.
I'll keep searching...
Thread Starter
Newbie
Joined: Feb 2014
Posts: 3
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2005 C230 Kompressor Sport
I pulled the cosmetic cover off the front to look at the cam sensors/wires. The intake side is definitely saturated in the connection, and oily on the outside. When I took the connector apart, some drops of oil fell out. The exhaust side is much less oily, but still appeared damp inside. Outside was dry.
If I were to change the intake camshaft sensor and connecting wire, does anyone think it would solve the surging problem?
If I were to change the intake camshaft sensor and connecting wire, does anyone think it would solve the surging problem?
