Audi Q7 Unpleasant odor from heating and ventilation system
download
Condition Unpleasant “musty” odor from Heating and Ventilation system. Odor mainly occurs after vehicle has been sitting unused at least 5 hours and within 20 to 60 seconds after vehicle is first started. Technical Background Condensate is a normal condition in all A/C systems. If odor is noticeable without engine started, this may be due to mold and mildew in the passenger compartment, not from the A/C system. All other possible sources of unpleasant odor must be addressed before performing this Technical Service Bulletin. Consider the following conditions before proceeding: ^ Evaporator housing drain must be open and free of debris. ^ Cabin must be sealed with no water ingress into the passenger compartment. ^ Plenum drains must be clear and free of debris. ^ Pollen filter must be clean and free of moisture.
Condition Unpleasant “musty” odor from Heating and Ventilation system. Odor mainly occurs after vehicle has been sitting unused at least 5 hours and within 20 to 60 seconds after vehicle is first started. Technical Background Condensate is a normal condition in all A/C systems. If odor is noticeable without engine started, this may be due to mold and mildew in the passenger compartment, not from the A/C system. All other possible sources of unpleasant odor must be addressed before performing this Technical Service Bulletin. Consider the following conditions before proceeding: ^ Evaporator housing drain must be open and free of debris. ^ Cabin must be sealed with no water ingress into the passenger compartment. ^ Plenum drains must be clear and free of debris. ^ Pollen filter must be clean and free of moisture.
Tags: Audi
