Rough running/multiple codes

PATTERSONAM

MEMBER
2006 MERCEDES BENZ C230
2.5L
6 CYL
2WD
AUTOMATIC
160,000 MILES

While driving I got a ESP malfunction then when I turned off the car it would not crank I got multiple misfire codes and a camshaft sensor A malfunction code. I changed one of the cam sensors and the car cranked and ran however it is still idling rough and throwing misfire codes and hard to start. I now know it has 4 sensor and 4 magnets as well so does the A in the codes represent one side or the other of the engine. Just trying to figure out what to by or if all sensors need replaced and all 4 magnets needs replaced. I have a crankshaft sensor as well but have not put it on yet since it seems to be something else. Thanks, Allen

3 Replies

KASEKENNY

MECHANIC
18,907 POSTS

Let's start from the beginning and get the codes that you are seeing and then we can sort out next steps.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Also, when you say you have all 4 sensors. and magnets, what are you referring too? I suspect when you supply the codes i will understand that better.

However, if the engine starts and runs but feel like it is misfiring then we need to check for a vacuum leak as well.

Here is a guide that will cover this. Let us know what turns up with this and we can go from there.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Thanks

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Sunday, February 21st, 2021 AT 2:11 PM

PATTERSONAM

MEMBER
2 POSTS

So the code list is long P0355, 351,353,356,352 and 335 which on the code reader it said camshaft sensor A malfunction but when you look it up in the internet it says crankshaft sensor. There were more code but those are the ones I wrote down. So before this the car was running fine. While driving the car I got a ESP malfunction then when I turned off the car it would not crank. I got multiple misfire codes and a camshaft sensor A malfunction code. I replace one of the 4 sensors not knowing at the time it had 4 sensors. When I changed the one sensor the car cranked and ran I was able to drive it home and while driving it ran smooth but when I came to an idle it was running rough. The car still runs rough and so I was trying to decide if I should replace the other 3 sensors plus the 4 solenoid adjusters, I also have a crankshaft sensor which I have not changed yet since the car cranked with the new camshaft sensor. Thanks

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Sunday, February 21st, 2021 AT 7:41 PM

KASEKENNY

MECHANIC
18,907 POSTS

I would agree that this appears to be an issue either with the sensors or a greater issues like metal in the engine. I would drain the oil and put it through a coffee filter and make sure there is not a good amount of metal in it.

What happens to cause these issues with all the cylinders and actuators is when there is metal going through the oil it gets stuck in the actuators and causes them to stick and the engine runs poorly and sets codes against all the cylinders like this including the cam and crank. Basically it is expecting the cam/crank to be in certain position related to each other and then they are not there due to the actuators sticking they set all these types of codes.

https://www.2carpros.com/articles/how-camshaft-variable-valve-timing-works

https://www.2carpros.com/articles/how-to-change-engine-oil-and-filter

If there is no metal then I would proceed with what you are suggesting.

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Monday, February 22nd, 2021 AT 6:07 PM