939005420 - X05 EXCESSIVE OIL CONSUMPTION

High consumption during the first few thousands of Km of the vehicle''s life is considered normal.
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
Check that there is no engine oil in the coolant, also check that the exhaust tail pipe is not dirty with oil and check that there are no bluish exhaust fumesMove on to Step 1Engine oil in the cooling circuit.Move on to Step 2.
Exhaust tail pipe dirty with oil.Move on to Step 2.
Presence of bluish exhaust fumes.Move on to Step 2.
1SPARK PLUGS CHECKAll OKProblems encounteredOperation
Check that the spark plugs are not fouled with oil.Move on to Step 3Spark plugs fouled with oilMove on to Step 2
2CHECK ENGINE BLOCK SURFACEAll OKProblems encounteredOperation
Remove the head (only for 2.2 JTS version0    Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET (only for 3.2 V6 version)    Op. 1016D10 CYLINDER HEAD – R.R. AND REPLACE GASKETSand check that there are no:- oil deposits on valves;- defects on engine block;- defects on the cylinder head gasket.Move on to Step 3Oil deposits on the valves.(only for 2.2 JTS version) Overhaul the head    Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL (only for 3.2 V6 version) Overhaul the head    Op. 1016E20 CYLINDER HEAD (ONE), LEFT OR RIGHT, REMOVED - OVERHAUL
Cylinder block plane defective.Level the engine block.
3CYLINDER BORE CHECKAll OKProblems encounteredOperation
Check the cylinder liners/bores. More specifically:- that there are no deep machining grooves;- that there is no vitrification of the liners/bores;- measure that there is no ovality or wear.End of diagnosisPresence of machining grooves.Grind the cylinder.
Liners/bores vitrifiedGrind the cylinder.
Piston rings faulty.Replace the piston rings    Op. 1028H60 SET OF PISTONS, GUDGEON PINS AND SEALS - REPLACE PISTONS AND CONNECTING RODS AT THE BENCH - INCLUDES ALIGNMENT AND BALANCING