Thursday, October 28, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 727


Possible cause:



- B4/3 (Fuel tank pressure sensor)



Affected functions:



- Engine diagnosis



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0976



Control module has an internal error. (P0607)



Possible cause:



- Test control unit.



Affected functions:



- Engine running



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



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



0981



Ignition coil primary current of cylinder 1 is too high. (P0351)



Possible cause:



- Primary current



Affected functions:



- Engine running



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Test 1: Check component T1/x (ignition coil(s)).



1. Check component T1/x (ignition coil(s)).



Test 1.1: Check component T1/1 (ignition coil cylinder 1).



1.1. Check component T1/1 (ignition coil cylinder 1).



Warning!Hazard as a result of high voltage at the ignition system!



- Electronic ignition systems operate within a hazardous power range both at the low voltage side (primary circuit) as well as on the high



voltage side (secondary circuit).



- Contacts with such parts can result in burns, heart flutter or cardiac arrest.



Rules of conduct and protective measures



- Persons with heart pacemakers must not perform any work on the ignition system.



- Switch off the ignition when performing work on the ignition system.



- Do not touch any parts of the ignition system when starting the engine or when the engine is running.



- Wear protective shoes with rubber soles.

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