Rod knock sensor replacement instructions needed

2013 MERCEDES BENZ C250
115,000 MILES • 0.8L • 4 CYL • TURBO • 2WD • AUTOMATIC
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FRVNK
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Hello, I got a code that my rod knock sensor is bad and needs replacement. I was hoping you could give me a diagram and instructions on how to fix the problem. I’m not to sure where the rod knock sensor is located.
May 29, 2020 at 8:45 AM
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JACOBANDNICKOLAS
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Hi,

There are several different knock sensors on this engine. Do you have the specific code from when it was scanned? I don't want to tell you the wrong one and without the code, I don't know which is needed.

If you look at the attached pic, you'll see what I am referring to.

Let me know.

Joe
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May 29, 2020 at 9:05 AM
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FRVNK
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Yes, sorry. codes are p0326 and p0172. theses both came out when they scanned. thank you.
May 29, 2020 at 9:24 AM
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JACOBANDNICKOLAS
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Okay, that indicates cylinder 1 (p0326) I attached two pics below. The first is the description of the code identified by Mercedes as P032600. Pic 2 shows the sensor location.

Let me know if this helps.

Joe
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May 29, 2020 at 9:41 AM
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FRVNK
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Thank you so much. what about the other code what was that about?
May 29, 2020 at 9:53 AM
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JACOBANDNICKOLAS
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The other code deals with the computer controlling the air fuel mixture. I suspect once the knock sensor is replaced, it should go away.

Let me know if it doesn't.

Joe
May 29, 2020 at 6:07 PM