Codes p025c, p300, p301, p302 and b210068, misfires?

Tiny
BHAMDOC1973
  • MEMBER
  • 2014 MERCEDES BENZ C250
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
Has codes:
p025c
p300
p301
p302
b210068
I am leaning toward a fuel problem.
Sunday, April 30th, 2023 AT 1:05 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,912 POSTS
Here is what is said about the codes:

P025C: This code refers to an issue with the fuel pump module communication circuit. It may indicate a problem with the fuel pump relay or wiring.

P300: This code is a general misfire code, which means that one or more cylinders in the engine are not firing correctly. This can be caused by a variety of issues, such as a faulty ignition coil, spark plug, or fuel injector.

P301: This code specifically indicates a misfire in cylinder 1.

P302: This code specifically indicates a misfire in cylinder 2.

B210068: This is not an OBD-II error code and I could not find any information on it. Can you please confirm the accuracy of this code?

So, it looks like you may have a fuel pump going out and a fouled or worn spark plug. How does the engine run? Can you upload a video of the problem?
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Monday, May 1st, 2023 AT 9:11 AM

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