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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> General Information >> Heating, Ventilation & A/C (HVAC) >> Map - Heating, Ventilation, & Air Conditioning >> Heating, Ventilation & Air Conditioning Systems >> Cabin Air Filters

Cabin Air Filters

Condition Code Procedure
Air flow obstruction A Require cleaning or replacement
At or beyond service interval 3 Suggest replacement
Microbial growth causing odor A Require replacement of filter
Missing C Require replacement
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