3308740 - W10 BLACK EXHAUST FUMES

There are a great deal of exhaust fumes, with dark coloured smoke;
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Check whether the problem is connected with oil consumption Continue to Step 1 Excessive oil consumption See table   X05 
1CHECKING AIR CIRCUITAll OKProblems metOperation

Verify:

  • the state of the air filter
  • the condition and seal of the air supply circuit
Continue to Step 2 Circuit component damagedReplace component (See Assembly 1048A)
2CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check that there are no faults in the engine management control unit Continue to Step 3 An error is detected in the control unitContinue following the instructions for the diagnostic equipment
Lack of dialogue with the control unit Restore connection between the engine management control unit and the diagnostic connector ( See   E5030  PETROL ENGINE ELECTRONIC MANAGEMENT ).
3ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the diagnostic equipment (Examiner or other instruments) carry out the active diagnosis of the injectors. Continue to Step 4 Injector connections faulty Restore the connection of the injectors with the control unit, ( See   E5030  PETROL ENGINE ELECTRONIC MANAGEMENT )
Injectors faulty Replace injectors Op.   1056B70 
4CHECKING FUEL PRESSUREAll OKProblems metOperation
Check the fuel supply pressure Op.   0510C10  Continue to Step 5 Pressure not correct Replace the fuel pump assembly Op.   1040A70 
5HECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'