T10 PASSENGER COMPARTMENT WIND NOISE, LOWER AREA / (UNDERBODY) - Alfa - 156 - eLearn

With the vehicle moving, there is a noise coming from the lower part of the passenger compartment.

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Check that the noise is actually coming from the underbody by carrying out the preliminary check for locating noises See Test 70A Location of wind noise (preliminary location)	Continue to Step 1	The wind noise comes from another area	Check the diagnostic table corresponding to the area located.
1	UNDER ENGINE PARTITION CHECK	All OK	Problems met	Operation
	Check the condition of the bulkhead under the engine and make sure that it is correctly fitted	Continue to Step 2	Partition damaged	Replace the partition
		Continue to Step 2	Partition incorrectly fixed	Renew the fixing of the partition
2	UNDERFLOOR CHECK	All OK	Problems met	Operation
	Check the lining under the floor pan, particularly: the plugs are fitted the plugs are correctly fitted the seals are efficient	Continue to Step 3	Faults in the underfloor cover	Renew the plugs and seals for the underfloor cover
3	CHECK CORRECT OPERATION	All OK	Problems met	Operation
		Check that the fault is no longer presentEnd of diagnosis	Fault persists	Search for the fault starting from another symptom'