Rod knock sensor replacement instructions needed

Tiny
FRVNK
  • MEMBER
  • 2013 MERCEDES BENZ C250
  • 0.8L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 115,000 MILES
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.
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Friday, May 29th, 2020 AT 8:45 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
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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Friday, May 29th, 2020 AT 9:05 AM
Tiny
FRVNK
  • MEMBER
Yes, sorry. Codes are p0326 and p0172. Theses both came out when they scanned. Thank you.
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Friday, May 29th, 2020 AT 9:24 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
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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Friday, May 29th, 2020 AT 9:41 AM
Tiny
FRVNK
  • MEMBER
Thank you so much. What about the other code what was that about?
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Friday, May 29th, 2020 AT 9:53 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
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
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Friday, May 29th, 2020 AT 6:07 PM

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