Thursday, October 31, 2019

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 515


- Check voltage supply according to wiring diagram.



4. Check component G3/3 (Left O2 sensor, before TWC [KAT]).



Warning!Communication with ECU required.



5. Check component G3/3 (Left O2 sensor, before TWC [KAT]).



Warning!Communication with ECU required.



0449



The electronic analysis system for the O2 sensor in the engine control unit is defective. (P064D)



Possible cause:



- Test control unit.



Affected functions:



- Engine diagnosis



- Exhaust system



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



Test 1: Test control unit.



1. Test control unit.



Test control unit.



Possible cause and remedy



- Erase fault memory and start engine.



- Reread fault memory of control unit N3/10 (ME-SFI [ME] control unit).If fault reoccurs, replace component N3/10 (ME-SFI [ME] control



unit).



Read coding and transfer to the new control unit.End of test



0450



The electronic analysis system for the O2 sensor in the engine control unit is defective. (P064D)



Possible cause:



- Test control unit.



Affected functions:



- Engine diagnosis



- Exhaust system



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



Test 1: Test control unit.



1. Test control unit.



Test control unit.



Possible cause and remedy



- Erase fault memory and start engine.



- Reread fault memory of control unit N3/10 (ME-SFI [ME] control unit).If fault reoccurs, replace component N3/10 (ME-SFI [ME] control



unit).



Read coding and transfer to the new control unit.End of test