S20 GEARBOX DIFFERENTIAL UNIT NOISY'/ / GENERAL - Fiat - MULTIPLA - eLearn

With the engine running and the vehicle moving, there is a noise from the area of the gearbox in all conditions.

1	GEARBOX/DIFFERENTIAL OIL LEVEL CHECK	All OK	Problems met	Operation
		Results of the tests
	Check the gearbox / differential oil level Op. 2110A04	Continue to Step 2	Level too low	Restore the correct level
2	BEARINGS CHECK	All OK	Problems met	Operation
	Overhaul the gearbox ( Op. 2110B20 ) In particular, check the condition of the bearings	Continue to Step 3	Bearings worn	Replace the bearings involved
3	CHECK GEARS	All OK	Problems met	Operation
	Overhaul the gearbox ( Op. 2110B20 ). In particular, check the gear teeth: they should not be worn or show traces of seizing	Continue to Step 4	Gears worn	Replace the gears involved
4	CHECKING THE GEAR SET	All OK	Problems met	Operation
	Check the crown wheel and pinion reduction gear ( Op. 2110D20 ) In particular: it should not be worn or damaged there should not be excessive clearance	Continue to Step 5	Reduction gear damaged	Restore the clearance or, if necessary, replace the reduction gear
5	CHECKING 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'