Thursday, May 20, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 560


Warning!Communication with ECU required.



0644



Misfiring of cylinder 3 : Worsening of exhaust emission values after engine start (P0303)



Possible cause:



- Combustion misfirings



Affected functions:



- Engine diagnosis



-------------------------------------------------



Test 1: Combustion misfirings



1. Combustion misfirings



Warning!Communication with ECU required.



0645



Misfiring of cylinder 6 : Damages TWC (P0306)



Possible cause:



- Combustion misfirings



Affected functions:



- Engine diagnosis



-------------------------------------------------



Test 1: Combustion misfirings



1. Combustion misfirings



Warning!Communication with ECU required.

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