Note: The air quality sensor -G238- is installed at the front right in the direction of travel on the intake grille in the plenum chamber. The air pollution sensor -G238- is a highly sensitive electronic assembly which can be damaged by contact with solvents, fuels and certain chemicals. Do not install sensors that have been stored in inappropriate conditions (e.g. in toolboxes). The removed sensor should not be stored in places where it can come into contact with solvents, fuels and any aggressive chemical compounds (in liquid or gaseous form).
Removing
Remove the plenum box cover. Remove cover -1- from plenum box.
Disconnect connector from air pollution sender -G238-. Unlock the air quality sensor -G238- -1- and unscrew it from the bracket on the intake grille.
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