GLC300 P0300 85 code
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2019 GLC300
GLC300 P0300 85 code
I have a 2019 GLC300 52,00mi throwing this code misfiring at low RPM's. Since it's the random code I don't think it would be plugs or coils if it was it would pin it would call out the cylinder. Spark plugs replaced at 50K, I'm thinking O2 sensor. Does anyone have experience with this code and solution? Thanks for any help!
Last edited by mikefsmith1; Jun 14, 2023 at 10:55 AM.
