CEL and all kinds of codes
Thread Starter
MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
CEL and all kinds of codes
Anyone here ever see anything like this on their 6 cylinder m272 engine? Yes its an ML but same engine.
Fault log report generated by Torque for Android
=================================================
Vehicle VIN: 4JGBB86EX6A056126
Vehicle Manufacturer: Mercedes-Benz
Vehicle Calibration ID: 00244674401900580054486010190003
Current Fault Log
------------------
P0300: Random/Multiple Cylinder Misfire Detected
Pending Fault Log
------------------
P0303: Cylinder 3 Misfire Detected
P0304: Cylinder 4 Misfire Detected
P0306: Cylinder 6 Misfire Detected
Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P0629: Unknown code - More information may be available on the web
P0641: Unknown code - More information may be available on the web
P0637: Power Steering Control Circuit High
P0645: A/C Clutch Relay Control Circuit
End of report.
Here's the log from last night.
▶ Show quoted text
Fault log report generated by Torque for Android
=================================================
Vehicle VIN: 4JGBB86EX6A056126
Vehicle Manufacturer: Mercedes-Benz
Vehicle Calibration ID: 00244674401900580054486010190003
Current Fault Log
------------------
P0300: Random/Multiple Cylinder Misfire Detected
Pending Fault Log
------------------
P0303: Cylinder 3 Misfire Detected
P0304: Cylinder 4 Misfire Detected
P0306: Cylinder 6 Misfire Detected
Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P0629: Unknown code - More information may be available on the web
P0641: Unknown code - More information may be available on the web
P0637: Power Steering Control Circuit High
P0645: A/C Clutch Relay Control Circuit
End of report.
Here's the log from last night.
▶ Show quoted text
MBWorld Fanatic!
Joined: Oct 2004
Posts: 1,305
Likes: 37
From: Las Vegas, Nevada
2013 C350 Coupe, 2005 C230K Kleemann Sedan, 2013 GLK350 4matic
Anyone here ever see anything like this on their 6 cylinder m272 engine? Yes its an ML but same engine.
Fault log report generated by Torque for Android
=================================================
Vehicle VIN: 4JGBB86EX6A056126
Vehicle Manufacturer: Mercedes-Benz
Vehicle Calibration ID: 00244674401900580054486010190003
Current Fault Log
------------------
P0300: Random/Multiple Cylinder Misfire Detected
Pending Fault Log
------------------
P0303: Cylinder 3 Misfire Detected
P0304: Cylinder 4 Misfire Detected
P0306: Cylinder 6 Misfire Detected
Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P0629: Unknown code - More information may be available on the web
P0641: Unknown code - More information may be available on the web
P0637: Power Steering Control Circuit High
P0645: A/C Clutch Relay Control Circuit
End of report.
Here's the log from last night.
▶ Show quoted text
Fault log report generated by Torque for Android
=================================================
Vehicle VIN: 4JGBB86EX6A056126
Vehicle Manufacturer: Mercedes-Benz
Vehicle Calibration ID: 00244674401900580054486010190003
Current Fault Log
------------------
P0300: Random/Multiple Cylinder Misfire Detected
Pending Fault Log
------------------
P0303: Cylinder 3 Misfire Detected
P0304: Cylinder 4 Misfire Detected
P0306: Cylinder 6 Misfire Detected
Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P0629: Unknown code - More information may be available on the web
P0641: Unknown code - More information may be available on the web
P0637: Power Steering Control Circuit High
P0645: A/C Clutch Relay Control Circuit
End of report.
Here's the log from last night.
▶ Show quoted text
Thread Starter
MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
I was inquiring in general of a 3.5L M272 engine issue, commonly used on W204. (ie C300 C350 C280 etc)
The engine in question is mounted in a W164 chassis which I already stated as in an ML.
And yes, I do have a 2002 C230 Coupe but the question is not in regards to that vehicle or the ML just the engine, and if anyone has experienced anything like the codes shown in that combination.
The engine in question is mounted in a W164 chassis which I already stated as in an ML.
And yes, I do have a 2002 C230 Coupe but the question is not in regards to that vehicle or the ML just the engine, and if anyone has experienced anything like the codes shown in that combination.
Super Member
Joined: Dec 2007
Posts: 580
Likes: 0
C300 Sport 6MT
Since you're able read the codes, there are a couple things you can try to narrow down the issue. It could be something as simple as plugs needing replacement or the coilpack(s). Just swap one of the coilpacks from a bad cylinder, e.g. #3, to a good one and see if the error follows it. If it does, then repeat to narrow down which ones are really faulty. Depending on how many miles you have on this set of plugs, might be worth replacing them anyway. Simple job that can be completed in 30mins. Good luck...
Super Member
Joined: Apr 2010
Posts: 705
Likes: 55
From: LA LA Land
'08 C300 MM Pano
For starters, I would not trust that app as a definitive guide for any repairs. I learned the hard way that I should get a verified OBD-II code reader before I start pumping money and time into fixing anything!
Current Fault Log
------------------
P0300: Random/Multiple Cylinder Misfire Detected
Pending Fault Log
------------------
P0303: Cylinder 3 Misfire Detected
P0304: Cylinder 4 Misfire Detected
P0306: Cylinder 6 Misfire Detected
Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P0629: Unknown code - More information may be available on the web
P0641: Unknown code - More information may be available on the web
P0637: Power Steering Control Circuit High
Incidentally, I did have a similar situation recently... Although mine started with a P0301, went to a P0304 along with a P0637, then several P0304's, and finally, a P0300.
All of which turned out to be a bad spark plug on cylinder #1. It was past time that I changed all 6 anyways... ~$85 and some elbow grease, and my car is purring like a kitten again.
Good luck!
Current Fault Log
------------------
P0300: Random/Multiple Cylinder Misfire Detected
Pending Fault Log
------------------
P0303: Cylinder 3 Misfire Detected
P0304: Cylinder 4 Misfire Detected
P0306: Cylinder 6 Misfire Detected
Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P0629: Unknown code - More information may be available on the web
P0641: Unknown code - More information may be available on the web
P0637: Power Steering Control Circuit High
All of which turned out to be a bad spark plug on cylinder #1. It was past time that I changed all 6 anyways... ~$85 and some elbow grease, and my car is purring like a kitten again.
Good luck!
