3308744 - X05 EXCESSIVE OIL CONSUMPTION

The engine is running smoothly, but the oil consumption is higher than previously recorded during the life of the vehicle.
high consumption during the first few thousand kilometres is considered normal.
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Visually check for any leaks which could have caused the high consumptionCheck that the type of oil is suitable for the engine in question Continue to Step 1 Obvious oil leaks See table   X12 
Oil unsuitableTop up with correct type of oil
1CYLINDER HEAD OIL PENETRATION CHECKAll OKProblems metOperation
2.0 TS 2.4 JTD 10v

Remove the cylinder head and check:

  • that there is no oil in the combustion chambers and on the inlet valves
  • that the valve stems are not worn
Continue to Step 2 Excessive clearance between the head componentsHead components damaged or distorted Replace the components involved Op.   1016E10 
2.5 V6 3.0 V6 2.0 TB

Remove the cylinder head and check:

  • that there is no oil in the combustion chambers and on the inlet valves
  • that the valve stems are not worn
Continue to Step 2 Excessive clearance between the head componentsHead components damaged or distorted Replace the components involved Op.   1016E26 
2PISTON OIL PENETRATION CHECKAll OKProblems metOperation

Check the piston rings, in particular:

  • that they are not broken or damaged
  • that the actual rings are correctly fitted
  • that there is no seizing or sticking in the grooves
Continue to Step 3 Piston rings damaged or seizedRings incorrectly fitted Replace the piston rings Op.   1028H11 
3HECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'