U10 Bad smells from climate control system

Fault diagnosisU10 Bad smells from climate control system

The climate control is working properly, but there is an unpleasant smell in the passenger compartment

Step	Test procedure	Result	Action
0	PRELIMINARY CHECKS First check that the unpleasant smells are not coming from the outside: they can be eliminated straight away by switching on the recirculation function	OK	Move onto step 1
0		Recirculation not working	See table L16 CLIMATE CONTROL RE-CIRCULATION NOT WORKING End of diagnosis
1	CONDENSATION DRAINAGE PIPE CHECK Check the state of the condensation drainage pipe from the air conditioning unit: it should not be dirty or obstructed.	OK	Move onto step 2
1		Pipe obstructed	Repair the drainage pipe End of diagnosis
2	POLLEN FILTER CHECK Check the condition of the pollen filter NOTE: The pollen filter should be replaced at least once a year	OK	Move onto step 3
2		Filter obstructed	Replace the filter element Op. 5010B09 End of diagnosis
3	AIR SUPPLY DUCTS CHECK Check the air supply ducts: they should not be obstructed with dirt or foul smelling substances	OK	Move onto step 4
3		Obstructed ducts	Clean ducts End of diagnosis
4	HEATER RADIATOR AND EVAPORATOR CHECK Check the heater radiator and the evaporator: the fins should not be obstructed with dirt or other substances.	OK	Move onto step 5
		Radiator dirty or obstructed	Clean or replace the radiator Op. 5040C50 End of diagnosis
		Evaporator dirty or obstructed	Clean or replace the evaporator Op. 5040C64 End of diagnosis
5	CORRECT OPERATION CHECK Check that the fault is no longer present	OK	Incorrect selection of diagnostic procedure
5		Fault persists	Incorrect selection of diagnostic procedure

Parts & tools for this job For 2000 Alfa Romeo 147

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