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P3040 Diagnostic Trouble Code Discussion for November 2021

Combustion Misfire of Cylinder 4


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Trouble Ticket Help Requests for DTC P3040
Help Request Posted
2013 Mercedes-Benz C250 1.8L MIL Lamp on VIN: WDDGF4HB8D
P3040: Combustion Misfire of Cylinder 4. Everything seemed straight forward with these two codes that are documented on this post. We replaced the camshaft position sensor and all of the spark plugs including # 4 ignition coil. We cleared the codes with the Mercedes Xentry tester and both codes c...
November 29, 2021