125000707 - U10 UNPLEASANT CLIMATE CONTROL ODOURS

The climate control is working properly, but there is an unpleasant smell in the passenger compartment
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
First check that the unpleasant smells are not coming from the outside: they can be eliminated straight away by switching on the recirculation functionContinue to Step 1Recirculation not workingContinue according to the instructions for theSee table    See table L16 CLIMATE CONTROL RECIRCULATION NOT WORKING
1CONDENSATION DRAINAGE PIPE CHECKAll OKProblems metOperation
Check the state of the condensation drainage pipe from the air conditioning unit: it should not be dirty or obstructed.Continue to Step 2Pipe obstructedRepair the drainage pipe
2CHECKING POLLEN FILTERAll OKProblems metOperation
Check the condition of the pollen filter
The pollen filter should be replaced at least once a year.
Continue to Step 3Filter obstructedReplace the filter element Op. 5010B08
3AIR SUPPLY DUCTS CHECKAll OKProblems metOperation
Check the air supply ducts: they should not be obstructed with dirt or foul smelling substancesContinue to Step 4Ducts obstructedWash the ducts
4HEATER RADIATOR AND EVAPORATOR CHECKAll OKProblems metOperation
Check the heater radiator and the evaporator: the fins should not be obstructed with dirt or other substances.Continue to Step 5Radiator dirty or obstructedClean or replace the radiator Op.    Op. 5040C50 AIR CONDITIONER HEATER RADIATOR - R+R
Evaporator dirty or obstructedClean or replace the evaporator Op.    Op. 5040C64 A/C MANUAL CONTROL SWITCH (ONE) - R+R
5CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosis.