2888344 - D35 LOW ENGINE OIL PRESSURE

The warning light indicates a decrease in pressure in the engine lubrication circuit.
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation

Preliminarily check:

  • engine oil level
  • operation of the warning light in the panel and the switch
Check that the type of oil is suitable for the engine in question
Continue to Step 1Engine oil level too lowTop up the engine oil level Op.   1084A10 
Faults in the warning light circuitSee table   K30 
1ENGINE OIL TYPE AND FILTER CHECKAll OKProblems metOperation
Check that the engine oil is the recommended type in the correct quantityCheck that the oil filter is the recommended type and that it is correctly fittedContinue to Step 2Engine oil unsuitableChange the engine oil
Oil filter unsuitable or incorrectly fittedReplace the engine oil filter Op.   1084B30 
2OIL PUMP CHECKAll OKProblems metOperation

Check the condition of the oil pump. In particular check:

  • condition and cleanliness of oil pressure relief valve
  • condition of spring
Continue to Step 3Oil pump damaged or distortedPressure relief valve damagedReplace the oil pump Op. 1084B16
3LUBRICATION SYSTEM CHECKAll OKProblems metOperation
Carry out a general check on the lubrication system Op.   0510C20  Continue to Step 4Faults in the lubrication systemRestore the lubrication system (see Assembly 1054B)
4MAIN/BIG END BEARINGS CHECKAll OKProblems metOperation
Overhaul the engine: in particular check the condition of the main and big end bearingsContinue to Step 5Main and big end bearings faultyReplace main and big end bearings Op.   1024A10 
5CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'