2888497 - X12 ENGINE OIL LEAKS
A leak of engine oil can be seen with dripping and/or fouling of the engine| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|---|---|---|---|
| Carry out a preliminary visual inspection to locate the component or the area which is giving rise to the leak.If the visual inspection is not sufficient, wash the engine, dry it and cover the parts involved in talc: road test the vehicle to identify the leak | No leak located:Continue to Step 1 | Leak located | Proceed directly with the step involved | |
| 1 | DRAIN PLUG CHECK | All OK | Problems met | Operation |
| Check the condition and the seal of the oil drain plug | Continue to Step 2 | Tightening of drain plug not correct | Restore the correct tightening Op. 1020A30 | |
| 2 | OIL SUMP CHECK | All OK | Problems met | Operation |
Check:
| Continue to Step 3 | Oil sump damaged or distorted | Replace the oil sump Op. 1020A20 | |
| Lack of sealant or tightening not correct | Restore the correct tightening Op. 1020A20 | |||
| 3 | OIL FILTER CHECK | All OK | Problems met | Operation |
Check:
| Continue to Step 4 | Oil filter damaged or distorted | Replace the oil filter and the gasket Op. 1084B30 | |
| 4 | OIL PRESSURE RELIEF VALVE CHECK | All OK | Problems met | Operation |
| Check the condition of the oil pump pressure relief valve | Continue to Step 5 | Valve stuck in closed position | Replace the oil pump Op. 1084B16 | |
| 5 | ENGINE GASKETS CHECK | All OK | Problems met | Operation |
| Gain access to the crankshaft and camshaft gasketsCheck the seal of these gaskets | Continue to Step 6 | Crankshaft gaskets damaged | Replace the gaskets involved (see Assembly 1020D) | |
| Camshaft gaskets damaged | Replace the gaskets involved (see Assembly 1036B) | |||
| 6 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Search for the fault starting from another symptom' | |