February 27, 2014 Service bulletin

Supersedes Technical Service Bulletin Group 87 number 12-27 dated April 24, 2012

Audi technical service bulletin A871447 2010146- for 2005-2010 Audi A4, 2005-2015 Audi A6 and 2009-2015 Audi Q5 and others.

Bulletin number: A871447 2010146-
Component: Equipment: appliance: air conditioner
Summary: Supersedes Technical Service Bulletin Group 87 number 12-27 dated April 24, 2012. There is an unpleasant, musty odor coming from the heating and ventilation system. The odor usually occurs when the vehicle has been sitting unused for five hours or more. The odor usually occurs within 20 to 60 seconds after the vehicle is started. Condensation, which is a normal condition in all A/C systems, can cause a musty odor. If the odor is noticeable in the vehicle when the engine is not turned on, the cause may be mold and mildew in the passenger compartment, and not be related to the A/C system. All other possible sources of the odor must be investigated before this bulletin can be performed.

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