2012 CLS 63 Mis Fire- Cam Sensors




Rosco B.
I live in Cincinnati but travel for my job. our headquarters is in Charlotte NC.
Oh BTW I am almost certain my drivers side wheel bearing is going bad. YEP gonna do it myself
. I have not researched the job yet but have asked my SME who owns a EURO Car repair shop in Ft Myers Florida if it is doable he said not that bad of a job.
And if I can do it, anyone can do it . Pics will be posted and a little write up coming if not one here already.
2012 HRE S101 staggered 20s




Entire job took 45 minutes or less with basic hand tools. Anyone could and should do this.
I just picked up a 14 and had misfires on several cylinders, 4 to be exact, maybe even the same ones. Just put new plugs in, one coil must've been bad because plug was soaked, putting in all new coils. But the car has 55k miles, doubt this has been done.




I would still just inspect them rather than check the parts number it should take 20-30 minutes to inspect
Rosco
2012 CLS 550 4Matic with 61 000KM.
I have a very intermittent problem with rough idle and a "check eng" light that comes on with P2096 code. I already did the associated O2 sensor with this code and was now considering doing all the spark plugs and try and perhaps troubleshoot a bad coil (dreading the coils as it looks like a difficult job) but perhaps this is my problem. Going to follow the tips and pics and check these sensors later today.
The Best of Mercedes & AMG
Now to find the proper (superseded) replacement sensors here in Canada.
Last edited by Maduro; Nov 24, 2019 at 10:38 PM.
https://www.ecstuning.com/b-genuine-...or/2769051000/
https://www.fcpeuro.com/products/mer...mer-2761530028
https://www.ecstuning.com/b-genuine-...or/2769051000/
https://www.fcpeuro.com/products/mer...mer-2761530028
I just posted the following on a different thread that also talked about the same issue:
"My car is not misfiring but it has rough idle condition. While stationery, the car shudders/shakes with consistent periodicity. It is not really that bad but still noticeable.
After reading this thread, I checked the sensors and they all had oil in them. I have replaced all four of them but the rough idle condition is still there.
I haven't replaced the spark plugs yet. That's next on the list.
Any other ideas or what to look for?"
By the way, I bought the sensors from a local Mercedes dealer for $52 a piece.
I just posted the following on a different thread that also talked about the same issue:
"My car is not misfiring but it has rough idle condition. While stationery, the car shudders/shakes with consistent periodicity. It is not really that bad but still noticeable.
After reading this thread, I checked the sensors and they all had oil in them. I have replaced all four of them but the rough idle condition is still there.
I haven't replaced the spark plugs yet. That's next on the list.
Any other ideas or what to look for?"
By the way, I bought the sensors from a local Mercedes dealer for $52 a piece.
I have 50K miles on the car now. Bought it new. It's a 2013 with P30 package and I have recently put Eurocharged Tune on it. Not sure, if that was the root cause for this problem or it is just co-incidental.
In my case, there is no power loss. When the car is not idle, you can't tell there's anything wrong with it.
I also checked for codes using a Bluetooth adapter and an app called Torque. It didn't show any codes.
I also doubt the spark plugs are the culprits either. But I have ordered new ones to rule that out.




I have 50K miles on the car now. Bought it new. It's a 2013 with P30 package and I have recently put Eurocharged Tune on it. Not sure, if that was the root cause for this problem or it is just co-incidental.
In my case, there is no power loss. When the car is not idle, you can't tell there's anything wrong with it.
I also checked for codes using a Bluetooth adapter and an app called Torque. It didn't show any codes.
I also doubt the spark plugs are the culprits either. But I have ordered new ones to rule that out.
Any other ideas?
Could it be the coil? MAF?




