audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing > < Dust and pollen filter with activated charcoal filter element
Removing and installing air quality sensorG238
Removing and installing air quality sensor -G238-
  Note
   
t  The air quality sensor -G238- is a highly sensitive electronic component which could be destroyed by direct exposure to solvents, fuels and certain chemical compounds (contamination can ingress by way of area -A- for example with version “2”).
t  Never fit an air quality sensor -G238- which has been kept in a tool chest or the like.
t  Following removal, do not set down air quality sensor -G238- in areas where it could come into contact with solvents, fuels or certain chemical compounds (liquids or vapours).
t  There are different versions of the air quality sensor -G238-. At the start of production, air quality sensor -G238- version “1” was installed. This sensor is gradually being replaced by version “2”, however the mode of operation is identical. → Parts List
  A87-0476

Removing and installing > < Dust and pollen filter with activated charcoal filter element